CN114894982B - Sensor thermostatic control device - Google Patents
Sensor thermostatic control device Download PDFInfo
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- CN114894982B CN114894982B CN202210586877.8A CN202210586877A CN114894982B CN 114894982 B CN114894982 B CN 114894982B CN 202210586877 A CN202210586877 A CN 202210586877A CN 114894982 B CN114894982 B CN 114894982B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
- G05D23/32—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature with provision for adjustment of the effect of the auxiliary heating device, e.g. a function of time
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Abstract
The invention belongs to the technical field of sensors, and particularly relates to a sensor constant temperature control device which comprises a detector shell and is characterized in that a first cavity and a second cavity which are communicated with each other are arranged in the detector shell, a processing module is arranged in the first cavity, a constant temperature control assembly and a sensor detection assembly are arranged in the second cavity, and the constant temperature control assembly and the sensor detection assembly are electrically connected with the processing module; the constant temperature control assembly comprises a support frame, and an adjusting assembly is further arranged on the other side of the support frame. The constant-temperature control assembly can be controlled to heat the working environment of the sensor in the sensor detection assembly through the adjusting assembly, temperature compensation is carried out, and the working stability and the detection accuracy of the sensor are improved; meanwhile, the adjusting assembly can control the constant-temperature control assembly to heat the working environment of the processing module in the detector shell, so that temperature compensation is carried out, and the stability and accuracy of processing and numerical value transmission of the processing module are improved.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a constant temperature control device of a sensor.
Background
With the progress of economic development, safety consciousness and the perfection of relevant laws and regulations, the gas detection technology has been widely applied in the fields of industrial production, medical diagnosis, environmental monitoring, national defense and the like. The sensor is widely applied to the gas detection industry.
The patent with application number 2021205613534 discloses a gas detector, including the gas detector main part, be provided with the panel in the gas detector main part, be provided with status display lamp and infrared receiver on the panel, the arbitrary relative both sides of gas detector main part are provided with a plurality of wiring mouths, every wiring mouth is used for inserting communication wire or power wire. The gas detector can know the working state of the gas detector in real time by arranging the state display lamp, so that the gas state in the industrial hazardous chemical warehouse can be known; by arranging the infrared receiver, the remote control is facilitated, and the function of real-time monitoring is realized.
However, the gas detector is very sensitive to temperature in the use process, and the accuracy of the indication value of the sensor is affected by over-high and over-low temperature. In particular, for some electrochemical sensors, the sensor readings are high at temperatures above 25 ℃; below 25 ℃, the readings are lower. The temperature impact is typically 0.5% to 1.0% per degree celsius, depending on the manufacturer and sensor type. For the service environment of extremely cold regions such as northeast and northwest, the electrochemical sensor can appear that output signal is weak, and reading is inaccurate etc. unusually, leads to sensor detection failure, and extremely cold environment can reduce the sensor life-span moreover.
Therefore, in some special working environments, the stability of the working environment temperature of the detector should be considered, and corresponding temperature compensation measures are adopted to improve the accuracy of the detection data of the detector.
Disclosure of Invention
In order to solve the above problems, the present invention provides a sensor thermostatic control device, so as to solve the technical problem in the background art that the accuracy of the detection data of the detector is improved by taking the stability of the temperature of the working environment of the detector into consideration and adopting corresponding temperature compensation measures in some special working environments.
A sensor constant temperature control device comprises a detector shell, wherein a first cavity and a second cavity which are communicated with each other are arranged in the detector shell, a processing module is arranged in the first cavity, a constant temperature control assembly and a sensor detection assembly are arranged in the second cavity, and the constant temperature control assembly and the sensor detection assembly are electrically connected with the processing module;
the constant-temperature control assembly comprises a support frame, one side of the support frame is connected with a heating frame, heating wires are uniformly wound on the heating frame, a heat insulation sleeve is movably sleeved on the periphery of each heating wire, and a temperature controller is arranged on the support frame and is electrically connected with the processing module;
the sensor detection assembly comprises a sensor protection cover, a detection hole is formed in the sensor protection cover, a filter disc and a sensor are arranged in the sensor protection cover, and the sensor is connected with a sensor processing module;
the other side of the supporting frame is also provided with an adjusting assembly, the adjusting assembly comprises an adjusting block which is connected with the supporting frame and made of ferromagnetic materials, a sealing block for sealing the second cavity is arranged on one side of the adjusting block, one side of the sealing block is connected with a buffer spring, the other end of the buffer spring is connected with an electromagnetic assembly in the detector shell, and the electromagnetic assembly is electrically connected with the processing module;
after the sensor protective cover is connected to the second cavity, the sensor and the sensor processing module are located inside the heating wire, the heat insulation sleeve is located on the periphery of the heating wire, the heating wire generates heat to heat the working environment of the sensor, and the heat insulation sleeve conducts heat insulation; the processing module controls the electromagnetic assembly to be electrified and generate first magnetic strength, the electromagnetic assembly is magnetically adsorbed by the adjusting block, and meanwhile, the buffer spring is compressed and the heating wire is brought into the first cavity through the supporting frame so as to heat the working environment of the processing module.
The processing module controls the electromagnetic assembly to be electrified and generate second magnetic strength, the electromagnetic assembly magnetically adsorbs the adjusting block and drives the sealing block to move inwards in the second cavity, and the buffer spring is compressed; the power off of the electromagnetic assembly is controlled by the processing module, the electromagnetic assembly does not adsorb the adjusting block magnetically, the buffer spring recovers elastic deformation and pushes the sealing block to move outwards along the second cavity, and the sealing block pushes air to reach the filter piece and clean the filter piece.
Processing module control electromagnetic component is switched on repeatedly and is cut off the power supply to drive sealed piece reciprocating motion in the second cavity through the regulating block, in order to pass through the detection hole repeatedly and bleed and exhaust, improve the accurate nature that the sensor detected to the surrounding environment.
The invention has at least the following beneficial effects:
1. according to the temperature of the external environment measured by the internal temperature measuring component, the processing module in the detector shell controls the heating time and the heating temperature of the heating wire through the temperature controller, the heating wire generates heat to heat the working environment of the sensor, and the heat insulation sleeve preserves heat to ensure that the sensor is in the working environment with relatively stable temperature, so that the stability and the accuracy of the measured numerical value measured by the sensor in measurement and transmission are improved.
2. According to the invention, the processing module is used for controlling the electrification of the electromagnetic assembly and generating a first magnetic force intensity, the electromagnetic assembly magnetically adsorbs the adjusting block, and meanwhile, the buffer spring is compressed and the heating wire is brought into the first cavity through the support frame; the heating time and the heating temperature that processing module passes through the temperature controller control heating wire simultaneously, the heater strip generates heat in order to heat processing module's operational environment to guarantee that processing module is in the operational environment of temperature relatively stable, and then improve processing module and handle and transmit the stability and the precision of numerical value.
3. The cleaning cycle and the cleaning time are set in the processing module, the electromagnetic assembly is controlled to be electrified through the processing module and generate second magnetic strength, the electromagnetic assembly magnetically adsorbs the adjusting block and drives the sealing block to move inwards in the second cavity, and the buffer spring is compressed to suck air into the second cavity; the outage of processing module 4 control electromagnetism subassembly, the no longer magnetism of electromagnetism subassembly adsorbs the regulating block, and buffer spring resumes elastic deformation and promotes sealed piece along the in-process of the outside motion of second cavity, and is gapped between sensor and the heater strip, and sealed piece promotes the air in the second cavity and reachs cassette department and clear up the cassette to reduce the work load of artifical clearance and change cassette, uses manpower sparingly, and the effect is showing.
4. According to the invention, the electromagnetic assembly is controlled to be repeatedly powered on and off through the processing module, so that the sealing block is driven to reciprocate in the second cavity through the adjusting block, the sealing block repeatedly performs air suction and exhaust through the detection hole in the reciprocating motion process in the second cavity, and the flow of gas near the sensor and the detection hole can be promoted in the air suction and exhaust processes, so that the sensor can detect gas in a wider range, and the accuracy of the sensor in detecting the surrounding environment is further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is an exploded view of a probe according to the present invention;
FIG. 2 is a schematic diagram of the overall structure of the detector of the present invention;
FIG. 3 is a schematic view of the internal cross-sectional structure of the probe of the present invention;
FIG. 4 is a schematic structural view of a thermostatic control assembly, a sensor detection assembly and an adjustment assembly according to the present invention;
FIG. 5 is a schematic view of the adjustment assembly controlling the position of the thermostatic control assembly within the first cavity in accordance with the present invention;
FIG. 6 is a schematic view of the movement position of the adjusting block in the second cavity;
FIG. 7 is an enlarged view of the portion A of FIG. 6 according to the present invention.
In the figure: 1. a probe housing; 2. a first cavity; 3. a second cavity; 4. a processing module; 5. a thermostatic control assembly; 501. a support frame; 502. a heating frame; 503. a heating wire; 504. a heat insulating sleeve; 505. a temperature controller; 6. a sensor detection assembly; 601. a sensor shield; 602. a probing hole; 603. a filter disc; 604. a sensor; 605. a sensor processing module; 7. an adjustment assembly; 701. an adjusting block; 702. a sealing block; 703. a buffer spring; 704. an electromagnetic assembly; 705. a telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1
As shown in fig. 1-4, a sensor thermostatic control device includes a detector housing 1, a first cavity 2 and a second cavity 3 are disposed in the detector housing 1, the first cavity 2 is internally provided with a processing module 4, the processing module 4 is mainly a circuit board, and stores a control program, and can control a thermostatic control assembly 5, a sensor detection assembly 6 and related components and perform data transmission.
A constant temperature control component 5 and a sensor detection component 6 are arranged in the second cavity 3, and the constant temperature control component 5 and the sensor detection component 6 are electrically connected with the processing module 4; the thermostatic control assembly 5 is used for heating the working environment of the sensor 604 in the sensor detection assembly 6, so as to ensure that the sensor 604 works in the working environment with relatively stable temperature, and to improve the stability and accuracy of the measured values measured and transmitted by the sensor 604.
The constant temperature control assembly 5 comprises a support frame 501, one side of the support frame 501 is connected with a heating frame 502, the heating frame is made of mica sheets, and the mica sheets have a good thermal resistance function so as to effectively support a heating wire 506 above the mica sheets. The heating frame 502 is uniformly wound with the heating wires 503, and the heating wires 503 can generate heat after being electrified so as to heat the environment around the sensor 604 and ensure that the sensor 604 is in a relatively stable working environment. The heat insulation sleeve 504 is movably sleeved on the periphery of the heating wire 503, and the heat insulation sleeve 504 is made of mica, so that the heat insulation effect is achieved, and the temperature of the working environment around the sensor 604 can be ensured to be normal; the heat insulating sleeve 504 is fixedly connected to the sensor shield 601, and when the environment around the sensor 604 is heated, the heat insulating sleeve 504 is located around the heater wire 503. When the sensor 604 is positioned inside the heating wire 503, there is a gap between the sensor and the heating wire 503. Be equipped with temperature controller 505 on the support frame 501, temperature controller 505 and processing module 4 electric connection, processing module 4 measures the temperature of detector casing 1 external environment according to inside temperature measuring unit, then passes through the heating time and the heating temperature of temperature controller 505 control heating wire 503 according to this temperature to guarantee that sensor 604 is in the operating environment of temperature relatively stable, and then improve sensor 604 and measure stability and the precision that records numerical value with the transmission.
The sensor detection assembly 6 includes a sensor shield 601, and the sensor shield 601 is threadedly coupled to the second cavity 3 to enable attachment and detachment of the sensor shield 601 to the sonde housing 1 for inspection or replacement of the sensor 604 and the filter 603. The sensor protective cover 601 is provided with a detection hole 602, and the detection hole 602 is used for being matched with the sensor 604 to detect the external environment. The sensor protection cover 601 is internally provided with a filter 603 and a sensor 604, and the sensor 604 can be an infrared sensor, a gas sensor and the like and is set according to the detection requirement of a user. The outer diameter of the sensor 604 is smaller than the inner diameter of the sensor protective cover 601, so that a gap is formed between the inner wall of the sensor protective cover 601 and the sensor 604, the periphery of the sensor 604 is connected with the inside of the sensor protective cover 601 in a pressing mode through a flexible block, and the sensor 604 can be taken out of the sensor protective cover 601 to be inspected or replaced conveniently. The sensor 604 is connected to a sensor processing module 605, the sensor processing module 605 is configured to transmit the signal measured by the sensor 604 to the processing module 4, and the processing module 4 converts the measured signal into corresponding data and transmits the data. The filter 603 is movably clamped and connected with the inner wall of the sensor protective cover 601, so that the filter 603 can be removed, replaced or cleaned.
When the detector housing 1 is installed, after the sensor shield 601 is connected to the second cavity 3, the sensor 604 and the sensor processing module 605 are located inside the heating wire 503, and the heat insulating sleeve 504 is located on the outer periphery of the heating wire 503; the temperature measuring component inside the probe housing 1 measures the temperature of the environment outside the probe housing 1; after the temperature of the external environment measured by the internal temperature measuring component is detected by the processing module 4, the temperature controller 505 controls the heating time and the heating temperature of the heating wire 503, the heating wire 503 generates heat to heat the working environment of the sensor 604, and the heat insulation sleeve 504 keeps the heat, so as to ensure that the sensor 604 is in the working environment with relatively stable temperature, and further improve the stability and accuracy of the measured value measured by the sensor 604 through measurement and transmission.
Example 2
In an extremely cold working environment, the low temperature not only affects the measurement and detection accuracy of the sensor 604, but also affects the stability and accuracy of the operation of the processing module 4 in the first cavity 2 of the detector housing 1, so when the detector operates in an extremely cold low temperature environment, in addition to the heating of the working environment around the sensor 604 for temperature compensation, the heating of the working environment around the processing module 4 in the first cavity 2 also needs to be considered to ensure the stability of the operation of the processing module 4.
As shown in fig. 4-5, the other side of the supporting frame 501 is further provided with an adjusting assembly 7, the adjusting assembly 7 includes an adjusting block 701 made of ferromagnetic material connected to the supporting frame 501, one side of the adjusting block 701 is provided with a sealing block 702 for sealing the second cavity 3, one side of the sealing block 702 is connected to a buffer spring 703, the other end of the buffer spring 703 is connected to an electromagnetic assembly 704 in the detector housing 1, the buffer spring 703 is internally sleeved with a telescopic rod 705, one end of the telescopic rod 705 is connected to the sealing block 702 and the other end is connected to the electromagnetic assembly 704, and by the cooperation of the buffer spring 703 and the telescopic rod 705, in the process that the buffer spring 703 is compressed or elastically deformed, the telescopic rod 705 contracts or extends correspondingly, so as to ensure that the moving direction of relevant components on the thermostatic control assembly 5 is driven, and ensure that relevant components of the thermostatic control assembly 5 can move out of or enter the second cavity 3 smoothly; the electromagnetic assembly 704 is electrically connected to the processing module 4, and the processing module 4 controls the magnitude of the current flowing into the electromagnetic assembly 704, so as to control the magnitude of the magnetic force generated by the electromagnetic assembly 704.
When the detector works in an extremely cold working environment, after the working environment of the sensor 604 is heated according to the above embodiment, when the working environment of the processing module 4 in the first cavity 2 needs to be heated, the processing module 4 controls the electromagnetic assembly 704 to be electrified and generate a first magnetic force intensity, the electromagnetic assembly 704 magnetically adsorbs the adjusting block 701, and simultaneously the buffer spring 703 is compressed and the heating wire 503 is brought into the first cavity 2 through the support frame 501; meanwhile, the processing module 4 controls the heating time and the heating temperature of the heating wire 503 through the temperature controller 505, and the heating wire 503 heats the working environment of the processing module 4 to ensure that the processing module 4 is in the working environment with relatively stable temperature, so as to improve the stability and accuracy of the processing and transmission values of the processing module 4.
Example 3
In the actual use process of the detector, the detector is often used in a working environment with more dust and sundries besides an extremely cold working environment, although the arranged filter plate 603 can filter the dust, the sundries and the like to a certain extent, after the detector is used for a long time, the filter plate 603 is still easy to be blocked and troublesome to clean by manpower, and the workload is increased; and the lack of time to clean, in turn, can affect the proper operation of the sensor 604, which requires significant consideration in the use of the detector.
In order to further solve the above problems with the related components of the present device, specifically, as shown in fig. 6-7, by setting a cleaning cycle and a cleaning time in the processing module 4, when the filter 603 needs to be cleaned at regular time, the processing module 4 controls the electromagnetic assembly 704 to be energized and generate a second magnetic force intensity, the electromagnetic assembly 704 magnetically adsorbs the adjusting block 701 and drives the sealing block 702 to move inwards in the second cavity 3, and the buffer spring 703 is compressed to suck air into the second cavity 3; the processing module 4 controls the electromagnetic assembly 704 to be powered off, the electromagnetic assembly 704 is no longer magnetically attracted to the adjusting block 701, the buffer spring 703 recovers elastic deformation and pushes the sealing block 702 to move outwards along the second cavity 3, a gap is formed between the sensor 604 and the heating wire 503, and the sealing block 702 pushes air in the second cavity 3 to reach the filter 603 and clean the filter 603.
The processing module 4 controls the current passing through the electromagnetic assembly 704, and further controls the magnetic strength generated by the electromagnetic assembly 704, so that the first magnetic strength value is greater than the second magnetic strength value. Under the action of the first magnetic force intensity, the related components of the thermostatic control assembly 5 and the sealing block 702 enter the first cavity 2 to realize the corresponding functions in the above embodiments; under the action of the second magnetic strength, the sealing block 702 always keeps moving in the second cavity 3, so as to prevent dust which is generated by sucking external air into ultrafine particles (ultrafine particles with a size smaller than the filtering size of the filter 603) from being sucked into the first cavity 2 to influence the work of the processing module 4 and the like in the first cavity 2, the design is more reasonable, and the service life of the detector can be prolonged.
Example 4
The detector is often still used for monitoring some special gases, for example chemical plant chlorine, coal mine gas etc. when the detector is in fixed position, if the gas of detector periphery does not circulate, the detector often can only detect peripheral gas through its inside sensor and detection hole, causes the testing result to have certain limitation. Therefore, in the above usage environment, it is necessary to pay attention to and overcome the limitations of the above detection.
When a gas is detected in an environment where air does not flow, in order to improve the accuracy of detection of the gas (concentration, type, and the like), it is necessary to promote the fluidity of the gas around the sensor and the detection hole of the detector. At this moment, through processing module 4 control electromagnetism subassembly 704 power-on and outage repeatedly, electromagnetism subassembly 704 is magnetic absorption repeatedly and is released regulating block 701, in order to drive sealed piece 702 reciprocating motion in second cavity 3 through regulating block 701, sealed piece 702 is in the process of reciprocating motion in second cavity 3 with passing through repeatedly detecting hole 602 and bleed and exhaust, bleed and exhaust in-process, can promote the flow of sensor 604 and near detecting hole 602, make sensor 604 can detect the gas of wider scope, and then improve the accuracy of sensor 604 to the surrounding environment detection.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A sensor thermostatic control device comprises a detector shell, and is characterized in that a first cavity and a second cavity which are communicated with each other are arranged in the detector shell, a processing module is arranged in the first cavity, a thermostatic control assembly and a sensor detection assembly are arranged in the second cavity, and the thermostatic control assembly and the sensor detection assembly are electrically connected with the processing module;
the constant-temperature control assembly comprises a support frame, one side of the support frame is connected with a heating frame, heating wires are uniformly wound on the heating frame, a heat insulation sleeve is movably sleeved on the periphery of each heating wire, and a temperature controller is arranged on the support frame and is electrically connected with the processing module;
the sensor detection assembly comprises a sensor protection cover, a detection hole is formed in the sensor protection cover, a filter disc and a sensor are arranged in the sensor protection cover, and the sensor is connected with a sensor processing module;
the other side of the supporting frame is also provided with an adjusting assembly, the adjusting assembly comprises an adjusting block which is connected with the supporting frame and made of ferromagnetic materials, a sealing block for sealing the second cavity is arranged on one side of the adjusting block, one side of the sealing block is connected with a buffer spring, the other end of the buffer spring is connected with an electromagnetic assembly in the detector shell, and the electromagnetic assembly is electrically connected with the processing module;
after the sensor protective cover is connected to the second cavity, the sensor and the sensor processing module are located inside the heating wire, the heat insulation sleeve is located on the periphery of the heating wire, the heating wire generates heat to heat the working environment of the sensor, and the heat insulation sleeve conducts heat insulation; the processing module controls the electromagnetic assembly to be electrified and generate first magnetic strength, the electromagnetic assembly is magnetically adsorbed on the adjusting block, and meanwhile, the buffer spring is compressed and the heating wire is brought into the first cavity through the supporting frame so as to heat the working environment of the processing module.
2. The sensor thermostatic control device according to claim 1, wherein the processing module controls the electromagnetic assembly to be electrified and generate a second magnetic force intensity, the electromagnetic assembly magnetically adsorbs the adjusting block and drives the sealing block to move inwards in the second cavity, and the buffer spring is compressed; the power off of the electromagnetic assembly is controlled by the processing module, the electromagnetic assembly does not adsorb the adjusting block magnetically, the buffer spring recovers elastic deformation and pushes the sealing block to move outwards along the second cavity, and the sealing block pushes air to reach the filter piece and clean the filter piece.
3. The sensor thermostatic control device according to claim 1, wherein the processing module controls the electromagnetic assembly to be repeatedly powered on and off, so that the sealing block is driven by the adjusting block to reciprocate in the second cavity, air is repeatedly pumped out and exhausted through the detection hole, and the detection accuracy of the sensor on the ambient environment is improved.
4. The sensor thermostatic control device according to claim 1, wherein a telescopic rod is sleeved in the buffer spring, one end of the telescopic rod is connected with the sealing block, and the other end of the telescopic rod is connected with the electromagnetic assembly.
5. The sensor thermostat control device according to claim 1, wherein when the sensor is located inside the heater wire, there is a gap between the sensor and the heater wire.
6. The sensor thermostat control device according to claim 1, wherein the heating frame is made of mica sheets, the heat insulating sleeve is made of mica materials, and the heat insulating sleeve is fixedly connected with the sensor protective cover.
7. The sensor thermostat control device of claim 2, wherein the first magnetic strength value is greater than the second magnetic strength value.
8. The sensor thermostat control device according to claim 1, wherein the filter is movably connected with the inner wall of the sensor protective cover in a clamping manner.
9. The sensor thermostat control device of claim 1, wherein the sensor shield is threadably connected to the second cavity.
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| CN202210586877.8A CN114894982B (en) | 2022-05-26 | 2022-05-26 | Sensor thermostatic control device |
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| US4541988A (en) * | 1983-12-13 | 1985-09-17 | Bacharach Instrument Company | Constant temperature catalytic gas detection instrument |
| US4950900A (en) * | 1988-03-10 | 1990-08-21 | Sanyo Electric Co., Ltd. | Heated infrared gas analyzer using a pyroelectric infrared sensor |
| US6578770B1 (en) * | 2002-04-09 | 2003-06-17 | Howard B. Rosen | Thermostat incorporating a carbon dioxide sensor suitable for reading using potentiostat techniques, and environmental control system incorporating such thermostat |
| CN102346162A (en) * | 2011-09-21 | 2012-02-08 | 河南汉威电子股份有限公司 | Active temperature compensation type gas detector and temperature compensation method thereof |
| CN107014868A (en) * | 2017-05-17 | 2017-08-04 | 中国民航大学 | Eliminate the inflammable gas sensor harmful gas detector of temperature drift |
| CN110554155A (en) * | 2019-10-22 | 2019-12-10 | 深圳市无眼界科技有限公司 | Constant temperature gas detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4541988A (en) * | 1983-12-13 | 1985-09-17 | Bacharach Instrument Company | Constant temperature catalytic gas detection instrument |
| US4950900A (en) * | 1988-03-10 | 1990-08-21 | Sanyo Electric Co., Ltd. | Heated infrared gas analyzer using a pyroelectric infrared sensor |
| US6578770B1 (en) * | 2002-04-09 | 2003-06-17 | Howard B. Rosen | Thermostat incorporating a carbon dioxide sensor suitable for reading using potentiostat techniques, and environmental control system incorporating such thermostat |
| CN102346162A (en) * | 2011-09-21 | 2012-02-08 | 河南汉威电子股份有限公司 | Active temperature compensation type gas detector and temperature compensation method thereof |
| CN107014868A (en) * | 2017-05-17 | 2017-08-04 | 中国民航大学 | Eliminate the inflammable gas sensor harmful gas detector of temperature drift |
| CN110554155A (en) * | 2019-10-22 | 2019-12-10 | 深圳市无眼界科技有限公司 | Constant temperature gas detection system |
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