DE102017208162A1 - Device for measuring perspiration - Google Patents

Abstract

The invention relates to a device for measuring perspiration on the body surface of a sweat-emitting living being, comprising at least one foil-like and / or textile surface portion, at least one sensor unit, at least one data acquisition unit.

Description

The invention relates to a device for measuring perspiration on the body surface of a sweat-emitting living being, comprising at least one foil-like and / or textile surface portion, at least one sensor unit, at least one data acquisition unit.

Many living things but to cool the body sweat off. Sweat (Greek ἱδρώc hidrós) refers to an aqueous secretion secreted by the skin of humans and other mammals via so-called sweat glands. There are two types of sweat glands, the so-called eccrine and apocrine sweat glands.

The eccrine sweat glands in humans are distributed practically throughout the body and can produce considerable amounts of a clear, odorless secretion that consists of more than 99 percent water and, in particular, electrolytes such as Na +, Cl-, K +, lactate and amino acids as well Contains urea. In addition, the sweat still contains sugar and ascorbic acid in low concentrations. The pH is in the acidic range at pH 4.5. In contrast, the apocrine sweat glands occur only in the hairy body areas of the armpit and genital region and on the nipples. They produce small amounts of a milky secretion that contains proteins and lipids and is almost pH neutral (pH 7.2).

Fresh sweat is completely odorless. Only the degradation of long-chain fatty acids to shorter chains such as butyric acid or formic acid ensures the typical smell of sweat. There are various responsible for the natural skin flora bacteria responsible. One exception is puberty: Various hormonal processes in the body can also smell fresh sweat.

The process of sweating is also called transpiration. Excessive, pathological secretion of sweat is called hyperhidrosis; in the case of reduced or completely absent sweat production it is called hypo- or anhidrosis.

Sweating is perceived by many people as unpleasant, since the secretion of sweat in the spirit is associated with the formation of sweat odor.

People therefore try to suppress the formation of sweat or the smell of sweat.

To inhibit sweat production, as one of the causes of sweat odor, so-called antiperspirants are offered in the trade. Antiperspirants, antiperspirants or antiperspirants (antiperspirants) are substances that reduce the activity of sweat glands and thus reduce the development of body odor. The most commonly used antitranpirant substance is aluminum chlorohydrate (ACH), which can be applied to the appropriate body region in the form of sprays, roll-on application or stick.

For the suppression of the smell of sweat itself, there are in the trade for decades cosmetic preparations which are referred to as deodorant. A deodorant (also called deodorant, Latin: Entriecher), or deodorant for short, is a personal care product that is mainly applied in the armpits to combat unpleasant body odor. The technical term for this is deodorization. The fight takes place on the one hand on the application of perfumes that cover the smell of sweat and on the other by inactivation (killing) of the microorganisms that are responsible for breaking down the sweat.

There are also preparations containing both antiperspirant active, perfume and bactericide. In common usage, therefore, is often spoken only of 'deodorant', without differentiating what effect the product achieved.

To determine the efficacy of antiperspirant or deodorant products, there are some classic methods. For example, the effectiveness of antiperspirant preparations is determined by is applied in the underarm area and the application site is covered with a liquid-absorbing material. Gravimetric measurement provides information about the amount of separated sweat. These measurements can be made under different load situations, e.g. during a sauna session (Hot-Room Test) or at a bicycle gage load.

Subsequent sniff tests also make it possible to empirically determine the development and strength of the odor of sweat.

These standard methods have a major disadvantage because it is impossible to make any statements about the temporal dependence of the amount of sweat depending on the load situation, since the collection of sweat always takes place over a certain period of time. A second disadvantage is that the mere application of the liquid-absorbing material to the sweat-producing skin area is a falsification of the measured values brings. Such a condition leads to the fact that the microclimate, which normally forms without support around the perspiration-producing skin area, is greatly disturbed. As a rule, this leads to the requirement for increased perspiration in the covered area.

Out WO 2016087381 is a computer-implemented method or a system for generating health data known. The method includes receiving a sensor dataset measured by one or more sensors of a portable device over a time interval, the sensor dataset indicating a time series profile of a user's body parameter of the portable device over the time interval. The method also includes determining an activity type of the user corresponding to the time series profile and calculating a value associated with a health feature, the value being calculated based on the activity type.

In WO 2011094819 A monitoring system is presented for the management and collection of environmental and physiological data associated with a subject. The system preferably comprises a garment, in particular a T-shirt, with a plurality of sensors, for example pressure sensors, a heart rate sensor, a temperature sensor, a strain gauge. The garment and an electronic module (15) containing a transmitter location module. The sensor data and location information are transmitted via the transmitter to the head unit or base station for further processing.

CN 105029715 reveals an 'intelligent'men's trousers. The pants consist of a front part and a back part, with the bottom of the front part and the bottom of the back part connected to form the crotch. The side edge of the front part and the side edge of the rear part are connected to form openings into which the feet may extend. An intermediate layer is formed at the position of the step. In the intermediate layer, a temperature sensor and a humidity sensor are arranged. A control chip is arranged at the head of the pants body. The temperature sensor and the humidity sensor are connected to the control package via wires with outer insulation layers. By the temperature sensor and the humidity sensor urine secretion is detected and transmitted to the control chip and the control chip transmits the information via a signal transmission circuit to a corresponding client side, so that the real-time monitoring function of incontinence incidents is obtained to ensure the health of the person. In addition, the temperature sensor, the control chip and a button cell are each provided with a waterproof layer, whereby the trousers can be washed.

From the WO 2016093915 a portable sensor device is known comprising a first flexible substrate comprising a first plurality of sensors disposed on a first side of the first flexible substrate to be in direct contact with a user body, and a first set of conductive connectors; which are arranged on a second side of the first flexible substrate. Wherein a second flexible substrate having a second set of conductive connectors disposed on a first side of the second flexible substrate compatible with the first set of conductive connectors for mechanically and electrically coupling the second flexible substrate to the first flexible substrate and to be arranged in a circuit arrangement. A second side of the second flexible substrate is provided for receiving and processing measurements that provide measurements from the sensors via the first and second sets of conductive connectors.

Despite the far-reaching state of the art, the skilled person lacks the methods to be able to measure and compare sweat secretion in a time-resolved manner under real conditions.

• - die Sensoreinheit einen flüssigkeitsaufnehmende Flächenabschnitt darstellt, wobei die Sensoreinheit ein Teil des Trägers darstellt oder auf diesem fixiert ist,
• - die Sensoreinheit jeweils mindestens zwei Sensoren vom Typ A umfasst,
• - die Sensoren mit der Datenaufnahmeeinheit mittels Leitungen elektrisch leitend verbunden sind,
• - die Sensoren vom Typ A Sensoren, Elektroden und/oder Kontaktpunkte zur Widerstands- und/oder Leitfähigkeitsmessung sind.
• - die Datenaufnahmeeinheit mindestens ein Mittel zur Energieversorgung, mindestens einen Zeitmesser, mindestens ein Mittel zur Widerstandsmessung und/oder Leitfähigkeitsmessung zwischen den mindestens zwei Sensoren vom Typ A einer Sensoreinheit und mindestens einen Datenspeicherbreich aufweist, in dem die gemessenen Widerstände und/oder Leitfähigkeiten in Abhängigkeit von der Meßzeit gespeichert werden,
• - wobei die Sensoreinheit so auf dem Träger angeordnet ist, das sie auf und/oder über einem Körperbereich des schweißabsondernden Lebewesens angeordnet werden kann und zeitweise mit diesem in Kontakt tritt

zur Messung der Schweißabsonderung einer Körperoberfläche eines schweißabsondernden Lebewesens hervorragend geeignet ist.For a person skilled in the art, it was surprising that a device for measuring sweat secretion of a body surface of a sweat-emitting living being, comprising at least one carrier, at least one sensor unit, at least one data acquisition unit, was characterized in that

• the sensor unit represents a liquid-absorbing area section, the sensor unit representing or being fixed to a part of the carrier,
• the sensor unit comprises in each case at least two sensors of type A,
• the sensors are electrically conductively connected to the data acquisition unit by means of cables,
• - The sensors of type A sensors, electrodes and / or contact points for resistance and / or conductivity measurement are.
• - The data acquisition unit has at least one means for power supply, at least one timer, at least one means for resistance measurement and / or conductivity measurement between the at least two sensors of the type A sensor unit and at least one Datenspeicherbreich in which the measured resistances and / or Conductivities are stored as a function of the measuring time,
• - Wherein the sensor unit is arranged on the support, that it can be arranged on and / or over a body region of the sweat-emitting living being and temporarily comes into contact with this

is highly suitable for measuring the perspiration of a body surface of a sweat-secreting animal.

With such a device, it is possible to detect the amount of sweat secreted within a body area within a certain period of time. For this purpose, the device is placed on the body such that the sensor unit is arranged over a respective measuring range and the conductivity measured between two sensors and / or the resistance as a function of the measuring time and the sensor unit are stored in the data memory. The measurements are carried out over a longer period of time, with one measurement per sensor pair being carried out at previously determined time intervals. After completion of the measurement, the collected data is read from the data memory and can be evaluated.

The measurement of the sweat production is carried out only indirectly with the device according to the invention, in which not the amount of sweat - volume or mass-is detected, but the taking place by the inclusion of the sweat in or on the substrate resistance change or conductivity change between the sensors.

According to the invention, it is advantageous if the wearer absorbs the sweat emitted by the body surface. By absorbing sweat reduces in the wetted area of the electrical resistance or increases the conductivity of the wearer.

It is advantageous if the carrier material is formed from a woven or nonwoven fabric. As a result, the device according to the invention is e.g. formed as part of a garment which imposes no restrictions on freedom of movement for the individual to be sampled.

In the field of sports textiles, the person skilled in the art finds a number of woven or nonwoven fabrics made of synthetic fibers or natural fibers, which show a very good perspiration absorption.

Particularly preferred are fabrics of cotton fibers, as these can be easily processed and show a good perspiration absorption capacity without special treatment.

For the purposes of the invention, however, it is also to use other liquid-receiving sheet materials as a carrier, for example flocked films or foams, in particular open-cell foams.

The conductive connections (lines) between the data acquisition unit and sensors can be implemented as insulated wires, in which case the wires can be attached to the carrier by sewing, gluing or welding in the simplest case.

It is advantageous to fix the lines on the carrier by stitching with a cross-stitch.

In order to avoid influences of the lines on the area to be examined, it is advantageous to fix the lines on the side facing away from the area to be examined. As a result, the influence on the conductivity of the skin is minimized.

However, it is particularly advantageous if the electrically conductive compounds in the production of the carrier material woven into these (fabric) or inserted (fleece).

As lines are conventional strands of a variety of very thin individual wires (conductors) which are surrounded by a shell of insulating material.

It is important that the conductors in conjunction with sweat or washing liquors show no corrosion. Particularly preferred are conductors made of silver-plated copper, silver, gold, platinum or stainless steel. For less noble metals such as copper or silver, the surface will coat with a very thin patina (e.g., oxides, sulfides or acetates). This patina is visible as discoloration, but does not interfere with the measurements.

For the purposes of the invention, it is also the electrical conductors by a thin layer of an electrically conductive material aufzudrucken on the carrier or transfer means of transfer to the carrier. For this purpose, conductive silver or graphite coatings are preferred.

If the carrier material is elastic, the line can be damaged or torn or torn when stretched. It is therefore advantageous not to make the lines straight, but to wave or loop the lines on the substrate. Due to the wave / loop-shaped laying an extension analogous to the carrier material is possible.

For connecting the conductor to the data acquisition unit or the sensors, many options are available to the person skilled in the art, including plug connections, clamping connections, welded connections or soldered connections.

In the context of the invention, it is preferable to connect the electrical conductors to the data acquisition unit by means of soldering. Soldered connections have the advantage that they are easy to 'open' in case of repair, but do not form contact resistances during operation, as is the case, for example, with plug-in or clamped connections.

The sensor unit according to the invention is to be regarded as a liquid-receiving partial surface of the carrier on which the sensors are arranged. This partial surface can correspond to the carrier material, so that there is no delimitation of the sensor unit to the non-sensor-occupied carrier material region. However, in the sense of the invention, the sensor region can also be a surface section with different material properties to the rest of the carrier material, which material is integrated into the carrier or fixed on the carrier. If the sensor unit is an independent surface section, then this surface section must be made of a liquid-absorbing material. The actual carrier then does not need to be liquid-absorbent, because the liquid absorption necessary for resistance measurement and / or conductivity measurement then takes place in the sensor unit itself.

Type A sensors are used to measure the resistance and / or conductivity of the space spanned between two Type A sensors. Type A sensors must therefore themselves be electrically conductive electrodes and / or contact points.

Suitable for the device according to the invention type A sensors are formed in the simplest case by short sections of the electrical conductor, these short sections are characterized in that they carry no insulation. The insulation-free region makes it possible to establish an electrically conductive connection between two type A sensors, whereby the conductive connection between the type A sensors is produced by sweat absorbed by the carrier material and acting as electrolyte.

The sensors of type A can also be designed as electrodes whose material is different from the material of the line. For example, through small rivets of platinum or gold, in which the conductor is trapped.

According to the amount and composition of the absorbed sweat, the resistance and the conductivity between the sensors change. The more sweat accumulates between two sensors on the substrate, the lower the resistance or the higher the conductivity. Figuratively speaking, the resistance and / or conductivity measurements can be used to distinguish large from small sweat stains. As the sweat stain increases with increasing sweat production, as the sweat absorbs in the wearer, you spread out flatly, so that a qualitative statement about the amount of produced sweat can be obtained.

If more than two type A sensors are arranged within the scope of a sensor unit in such a way that a matrix forms, the measurement of the resistance and / or the conductivity between the sensors of type A can determine the preparation or size of the sweat-soaked area, which is more accurate Conclusions about the amount of welding produced.

According to the invention, it is advantageous to arrange at least four type A sensors within a sensor unit.

It is particularly advantageous to position more than 16 type A sensors within a sensor unit, the arrangement being as symmetrical as possible in the form of a matrix.

In order to reduce the number of necessary electrical connections to the data acquisition unit, it is advantageous to connect two or more type A sensors with short conductors to a sensor array which is as linear as possible. Thus, for example, the sensors arranged in a line can be connected to a 4x4 matrix so that the sensor unit has four parallel sensor arrays of four sensors of type A each. The sensors connected to a sensor array provide a sensor during the measurement, so that the resistance and / or the conductivity between a sensor array and a single sensor or between two sensor arrays is measured.

For measurements in the underarm area, it is particularly preferable to select a sensor arrangement of 3 × 8 sensors, wherein three sensors of a matrix row are connected to a sensor array and eight parallel sensor arrays are formed between which the measurement takes place. This elongated matrix has the advantage that in particular oval sweat stains, as they occur in the axillary region, can be determined well.

Within the scope of the invention, the term data evaluation unit is understood to mean an electronic measuring system which is in the form of a programmable logic controller (microcontroller) resistance and / or or conduct conductivity measurements. As a minimum, the data evaluation unit has a microprocessor, a power supply and data memory. The data evaluation unit is fixed on the carrier so that the lines connected to it, which are likewise fixed on the carrier, do not lose contact during movement, in particular folding or stretching. It is advantageous to stick the data evaluation unit on the carrier or attach by sewing. It is particularly advantageous to cover the connection points with the line by additional application of synthetic resin, silicone rubber or adhesive tape and in addition to secure.

The data evaluation unit is able to control the sensors and to generate and store the measured values. By means of an interface, the stored measured values can be read out of the control unit.

The measurement of the resistance and / or the conductivity in the sensor area can be carried out by means of suitable alternating voltage or with very short individual voltage pulses in order to prevent the polarization effect of the conductive medium, in this case the sweat. By equipped with the device according to the invention T-shirt, for example, in which the sensor area is located in the region of the armpit, the sweat production can record in the normal course of the day. It is advantageous here that in healthy people in the right and left armpit sweat production is similar, as long as both armpits are treated the same or untreated.

By the separate evaluation of the measured values attributable to a sensor area, it is possible to find out the differences in the welding production of the two body areas.

The simultaneous measurement of perspiration on two different body areas can be used, for example, to determine the effectiveness of antiperspirant active ingredients. For this it is advantageous to select as skin areas the right and left armpit and to treat them in different ways. For example, the device according to the invention can be used to determine whether an antiperspirant active substance applied to an underarm area (armpit fossa axillaris) reduces sweat production compared to the amount of sweat produced by the untreated armpit.

Likewise, measurements on body areas treated with two different antiperspirant active ingredients are possible with the device according to the invention.

It is also within the meaning of the invention if the data acquisition unit measures at least one further parameter in addition to time detection and stores it in parallel with the resistance and / or conductivity measured value.

Advantageous embodiments of the device according to the invention may comprise one or more type B sensor (s). Advantageous as sensor (s) of the type B are one or more motion sensors and / or one or more temperature sensors and / or one or more position sensors. These additional type B sensors detect and record changes in load during the measurement period, as the load on the body is an important factor in welding production. Increasing physical activity and / or ambient temperature requires more cooling of the body, which usually results in increased sweat production.

By means of a position sensor, for example, it can be seen whether the test person sleeps and this takes place in a lateral or supine position. If the patient falls asleep in a lateral position, it can lead to a falsification of the measured values, since the body areas are permanently loaded differently or the temperature is different. About the situation during sleep can be, for example, also explain temperature jumps.

It is particularly advantageous to equip the device with at least one position sensor and in each case a temperature sensor and a motion sensor, which are connected to the data recording unit.

The arrangement of the type B sensors depends on the number of sensors. If only one position, movement and temperature sensor is provided in each case, it is advantageous to integrate them in the data acquisition unit.

If the device is equipped with a position sensor and two or more motion sensors and temperature sensors, it is advantageous to arrange these sensors within the sensor unit and to connect these sensors to the data evaluation unit.

For a type B sensor, which is not part of the data acquisition unit, it is within the meaning of the invention to design the connection to the data acquisition unit as a wireless connection, for example by having the type B sensor transmit a radio signal adapted to the reading, or data e.g. via NFC, transmits Bluetooth to the data acquisition unit.

For a closer examination of the sweat taken up by the device, it can be advantageous if the device according to the invention in addition to the sensors of the type A further sensors of the type C, which are connected to the data recording unit.

For the purposes of the invention, it is also the connection as a wireless connection to design, for example, characterized in that the sensor of type C emits a measured value adapted to the measured value or data, for. via NFC, transmits Bluetooth to the data acquisition unit.

The analysis of perspiration provides information about dehydration or type of sweat, as stress sweating or thermal sweating is shown by other welding compositions. Also, there is an influence of the treatment on e.g. pH value of the sweat, which in turn can influence the effectiveness of the AT agent.

Type C sensors are used to analyze sweat. In particular, the measurement of the pH, the concentration of chloride, calcium, potassium and sodium ions have proved to be advantageous for analyzing the perspiration.

As sensor of type C, therefore, at least one sensor from the group of sensors for pH measurement, chloride ion concentration measurement, calcium concentration / calcium ion concentration measurement, sodium concentration / sodium ion concentration measurement, and / or potassium concentration / potassium ion concentration measurement is advantageous.

The application of the device manifests itself in the following procedure:

• - in einem Ersten Schritt die erfindungsgemäße Vorrichtung so über der zu messenden Körperoberfläche angebracht wird, das die Vorrichtung in Kontakt mit dem aus der Körperoberfläche austretenden Schweiß kommt bzw. kommen kann (Fixationsschritt)
• - in einem zweiten sich wiederholenden Schritt der Wiederstand und/oder die Leitfähigkeit zwischen zwei Sensoren eines Sensorareals gemessen wird (Messwertgenerierung) und die Messwerte im Datenspeicher abgelegt werden (Messwertspeicherung)
• - in einem letzten Schritt die Messwerte aus dem Datenspeicher zur Analyse und Auswertung aus dem Datenspeicher ausgelesen werden (Auslesevorgang)

Method for measuring the amount of sweat secreted in a time-dependent manner by a body surface of a sweat-emitting organism, characterized in that

• in a first step, the device according to the invention is mounted above the body surface to be measured so that the device comes into contact with the sweat emerging from the body surface (fixation step)
• in a second repetitive step the resistance and / or the conductivity between two sensors of a sensor area is measured (measured value generation) and the measured values are stored in the data memory (measured value storage)
• - in a last step, the measured values are read from the data memory for analysis and evaluation from the data memory (read-out process)

The only condition for the fixation of the device on the body surface is the way in which the sensor units come into contact with the body surface. It is advantageous to arrange the sensor unit so that they come to rest when wearing the garment in the armpit. It is not necessary that there is a constant contact of the sensor units with the skin surface.

The measurement of the resistance and / or the conductivity takes place at periodic intervals. It is advantageous to carry out a measurement every 10 seconds when changing load changes occur. If the measurement is carried out at a uniform load, the measurements can also be made at intervals of up to 2 minutes.

The measured values are stored in the data memory. For each measured value, it is advantageous to store the real time or the time that has elapsed since the first measurement and an identifier to which sensor pair the measurement belongs to. The measured values obtained by sensors of type B and C are also stored in the data memory in connection with the time.

To evaluate the measured values, these are read out of the data memory via an interface. As an interface to data transmission, a number of known wired and contactless methods are available to the person skilled in the art. In particular, the communication via a USB interface or RS-232 interface as a wired interface are advantageous. However, particularly suitable are contactless transmission methods such as Bluetooth, WLAN or NFC, since they do not need open contacts that can corrode on contact with sweat or cleaning agents.

Using these non-contact transmission methods, it is possible to isolate the data acquisition unit so that it is completely surrounded by insulating material, e.g. is cast in a polymeric material such as epoxy resin.

In the following the invention will be explained with reference to figures and examples.

1 shows a very simple embodiment of the device according to the invention. On a rectangular carrier 1 is a sensor unit 2 arranged. The sensor unit carries two sensors 3 , Next to the sensor unit is a data acquisition unit 4 arranged. The data acquisition unit is above the pair of wires 5 with the sensors 3 conductive. The data acquisition unit is a microprocessor in the form of a programmable logic controller (microcontroller) 4a . power supply 4b and data storage 4c able to generate and store the measured values. By means of an interface 4d The stored measured values can be read out of the control unit. Furthermore, the carrier has means for attachment 6a . 6b of the wearer on the body. With these band-shaped fasteners 6a . 6b it is possible to tie together the carrier at its ends and thus to fix it on the body.

2 shows a part of a carrier 10 with a sensor unit 20 which is sewn as a separate area section on the support. The sensor unit carries a total 16 sensors 30a to 30p , wherein the sensors are arranged in the form of a 4x4 matrix. By conductive connection of the four sensors lying in a matrix line 30a -d, 30e - 30h . 30i -l and 30m In each case, a sensor array a1 to a4 forms. The four sensor arrays are each via an electrically conductive connection 50 with the data acquisition unit 40 connected.

Unlike in 1 embodiment shown are the electrically conductive connections 5 not running, but have a waveform. The wavy routing of the electrical lines has the advantage that the elasticity of the carrier is not or only minimally restricted. With an elongation of the carrier, a length compensation by stretching the waves in the lines is possible.

3a and 3b show a particular embodiment of the invention in the form of a T-shirt. 3a shows the front 1 T-shirt while 3b the corresponding back 2 of the T-shirt. The illustrated T-shirt shows, in the area where the T-shirt is worn under the armpits, a sensor unit 3 on. The sensor unit extends from the front 1 of the T-shirt down to the back 2 of the T-shirt. The T-shirt has a total of 12 Type A sensors, where 12 Sensors in the area of the left armpit (sensor unit 3 ). Four sensors of the type A are connected to each other to form a linear array, so that the sensor unit has three sensor arrays. Each sensor array is on the back of the T-shirt via one of the wires 5a to 5c with the data acquisition unit 6 , which is centered on the back of the T-shirt, conductively connected. In order to ensure the extensibility of the T-shirt in the area of the lines, the line connection was not linear, but wavy executed. The data acquisition unit 6 is in the upper half of the back area 2 glued.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2016087381 [0014]
• WO 2011094819 [0015]
• CN 105029715 [0016]
• WO 2016093915 [0017]

Claims (16)

Device for measuring the sweat secretion of a body surface of a sweat-emitting living being, comprising at least one carrier, at least one sensor unit, at least one data-receiving unit, characterized in that - the sensor unit represents a liquid-receiving surface portion, wherein the sensor unit is a part of the carrier or fixed on this, - The sensor unit comprises at least two sensors of the type A, - The sensors are electrically conductively connected to the data recording unit by means of lines, - The sensors of type A sensors are conductive, in particular electrodes and / or contact points for resistance and / or conductivity measurement. - The data acquisition unit has at least one means for power supply, at least one timer, at least one means for resistance measurement and / or conductivity measurement between the at least two sensors of the type A sensor unit and at least one Datenspeicherbreich in which the measured resistances and / or conductivities in dependence the measuring unit is stored, wherein the sensor unit is arranged so that it can be arranged on and / or over a body region of the sweat-emitting living being and temporarily comes into contact with this. Device after Claim 1 , characterized in that the carrier is a film-like, foamed and / or textile surface portion. Device according to at least one of the preceding claims, characterized in that the sensors of the type A for the measurement of resistance and / or conductivity are formed. Device according to at least one of the preceding claims, characterized in that the device also has type B sensors for measuring load changes. Device according to at least one of the preceding claims, characterized in that the data-recording unit as a sensor of type B has a means for measuring movements and the movement data are stored depending on the measuring time in the data storage area. Device according to at least one of the preceding claims, characterized in that the textile surface portion is a fabric or a non-woven. Device according to at least one of the preceding claims, characterized in that the lines represent a part of the textile fabric and the lines are woven into the textile fabric. Device according to at least one of the preceding claims, characterized in that the lines are fixed on the textile fabric, in particular fixed by sewing. Device according to at least one of the preceding claims, characterized in that the arrangement of the type A sensors is similar in all sensor units. Device according to at least one of the preceding claims, characterized in that the device comprises at least four sensors of type A per sensor unit, wherein two sensors of the type A form a sensor pair and the resistance and / or the conductivity between the sensor pairs is measured. Device according to at least one of the preceding claims, characterized in that the sensors of type A are arranged in a matrix. Device after Claim 11 , characterized in that the sensors of the type A which lie in a row of the matrix-like arrangement are conductively connected to one another and thus form an array. Device according to at least one of the preceding claims, characterized in that the timer is a real-time clock, timer or timer (timer). Device according to at least one of the preceding claims, characterized in that the data recording unit has an interface for reading the data stored in the data memory. Device after Claim 14 , characterized in that the interface enables wireless transmission, in particular a Bluetooth or NFC interface. A method of measuring the amount of sweat secreted from a body surface of a sweat-inducing organism in a time-dependent manner, characterized in that - in a first step, a device according to at least one of the preceding claims is applied over the body surface to be measured exposing the device to contact with the body sweat coming from the surface of the body comes or can temporarily come (fixation step), - in a second repetitive step the resistance and / or conductivity between two sensors of a sensor area is measured (measured value generation) and the measured values are stored in the data memory (measured value storage) in a last step, the measured values are read from the data memory for analysis and evaluation from the data memory (read-out process).

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