CN221173706U - Intelligent multi-signal output micro differential pressure transmitter - Google Patents
Intelligent multi-signal output micro differential pressure transmitter Download PDFInfo
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- CN221173706U CN221173706U CN202322845916.4U CN202322845916U CN221173706U CN 221173706 U CN221173706 U CN 221173706U CN 202322845916 U CN202322845916 U CN 202322845916U CN 221173706 U CN221173706 U CN 221173706U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to an intelligent multi-signal output micro differential pressure transmitter, which comprises: the device comprises a shell, a shell cover and a transmitter integrated circuit; the transmitter integrated circuit consists of a PCB, and a power management unit, a pressure sensor, a display unit, an MCU unit, a digital-to-analog conversion unit and a key unit which are arranged on the PCB; the MCU unit is controlled by the key unit to output various voltage signals and current signals with different sizes, and parameter setting can be realized by the display unit and the key unit, so that the measured differential pressure value is displayed in real time, the subsequent diagnosis and error reporting are convenient, and in addition, when an internal device is damaged, the problem condition can be judged by codes on the display unit; the hidden structure of the utility model adopts a flip-type structure, and the protection covers are combined after the parameter setting is completed, so that the key touch and the random parameter modification are avoided; the measuring range is adjustable on line, and the factory measuring range of the product can be modified through keys.
Description
Technical Field
The utility model discloses a transmitter, belongs to the technical field of transmitters, and particularly relates to an intelligent multi-signal output micro differential pressure transmitter.
Background
The micro pressure difference transmitter is one kind of instrument for measuring fluid pressure difference, and can convert micro pressure difference into electric signal for output, so as to realize the measurement and control of fluid flow, liquid level and other parameters. The micro differential pressure transmitter plays a very important role and has wide application in industrial production and scientific research.
Micro differential pressure transmitters can be used to measure fluid flow. In industrial production, the measurement of flow is very important, since it is really related to production efficiency and product quality. The micro differential pressure transmitter can calculate the flow by measuring the differential pressure of the fluid in the pipeline, thereby realizing the control and adjustment of the production process. For example, in the petrochemical industry, micropressure differential transmitters are widely used for flow measurement and control in the fields of oil refining, chemical industry, natural gas, etc.
However, in the prior art, the micro-differential pressure transmitter detects one type of measurement data and correspondingly outputs one type of control signal, so that the limitation of the working mode is very large, when a plurality of different types of measurement data exist, a plurality of micro-differential pressure transmitters are needed or a plurality of measurement works are repeated to finish, meanwhile, a worker cannot obtain a measured value in real time and can only obtain the measured value through a terminal, thus the worker cannot obtain the measured value in real time, and the subsequent maintenance time is increased.
Disclosure of utility model
The utility model aims to: an intelligent multi-signal output micro differential pressure transmitter is provided to solve the above-mentioned problems.
The technical scheme is as follows: an intelligent multi-signal output micro differential pressure transmitter, the output micro differential pressure transmitter comprising: a housing, a cover connected to the housing, and a transmitter integrated circuit disposed within the housing;
The transmitter integrated circuit consists of a PCB, and a power management unit, a pressure sensor, a display unit, an MCU unit, a digital-to-analog conversion unit and a key unit which are arranged on the PCB; and the MCU unit is controlled by the key unit to output voltage signals and current signals with different sizes.
In a further embodiment, the input end of the power management unit is connected with a power supply, and the output end inputs working voltages for the pressure sensor, the MCU unit and the digital-to-analog conversion unit.
In a further embodiment, the pressure sensor is connected to the MCU unit, and the pressure sensor outputs a detection signal to the MCU unit.
In a further embodiment, the display unit is connected to the MCU unit, and the display unit displays the pressure value of the pressure sensor.
In a further embodiment, the key unit is connected to the MCU unit for controlling the whole micro differential pressure transmitter.
In a further embodiment, the input end of the digital-to-analog conversion unit is connected with the MCU unit, receives the analog signal output by the MCU unit, and converts the analog signal to a digital signal for output.
In a further embodiment, the input end of the power management unit is provided with a protection circuit, the protection circuit is connected between a power supply and the power management unit, and the protection circuit is composed of a fuse and two diodes.
In a further embodiment, an amplifying circuit is arranged at the output end of the digital-to-analog conversion unit, and the amplifying circuit is composed of an amplifier, a triode and a resistor.
The beneficial effects are that: the MCU unit is controlled by the key unit to output various voltage signals and current signals with different sizes, and parameter setting can be realized by the display unit and the key unit, so that the measured differential pressure value is displayed in real time, the subsequent diagnosis and error reporting are convenient, and in addition, when an internal device is damaged, the problem condition can be judged by codes on the display unit; the hidden structure of the utility model adopts a flip-type structure, and the protection covers are combined after the parameter setting is completed, so that the key touch and the random parameter modification are avoided; the measuring range is adjustable on line, and the factory measuring range of the product can be modified through keys.
Drawings
FIG. 1 is a schematic diagram of an integrated circuit of the present utility model.
Fig. 2 is a schematic diagram of the present utility model.
Reference numerals: the electronic device comprises a shell 1, a shell cover 2, a power management unit 3, a pressure sensor 4, a display unit 5, an MCU unit 6, a digital-to-analog conversion unit 7, a key unit 8, a protection circuit 9 and an amplifying circuit 10.
Description of the embodiments
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
An intelligent multi-signal output micro differential pressure transmitter, comprising: the electronic device comprises a shell 1, a shell cover 2, a power management unit 3, a pressure sensor 4, a display unit 5, an MCU unit 6, a digital-to-analog conversion unit 7, a key unit 8, a protection circuit 9 and an amplifying circuit 10.
In one embodiment, as shown in fig. 1-2, a cover 2 is coupled to the housing 1 and a transmitter integrated circuit is disposed within the housing 1.
In one embodiment, as shown in fig. 1 to 2, the transmitter integrated circuit is composed of a PCB board, and a power management unit 3, a pressure sensor 4, a display unit 5, an MCU unit 6, a digital-to-analog conversion unit 7 and a key unit 8 which are arranged on the PCB board; and the MCU unit is controlled by the key unit to output voltage signals and current signals with different sizes.
In one embodiment, as shown in fig. 1 to 2, the input end of the power management unit 3 is connected to a power supply, and the output end is the working voltage input by the pressure sensor 4, the MCU unit 6 and the digital-to-analog conversion unit 7.
In one embodiment, as shown in fig. 1 to 2, the pressure sensor 4 is connected to the MCU unit 6, and the pressure sensor 4 outputs a detection signal to the MCU unit 6.
In one embodiment, as shown in fig. 1 to 2, the display unit 5 is connected to the MCU unit 6, and the display unit 5 displays the pressure value of the pressure sensor 4.
In one embodiment, as shown in fig. 1 to 2, the key unit 8 is connected to the MCU unit 6, and is used for controlling the entire micro differential pressure transmitter.
In one embodiment, as shown in fig. 1 to 2, the input end of the digital-to-analog conversion unit 7 is connected to the MCU unit 6, receives an analog signal output by the MCU unit 6, and converts the analog signal to a digital signal for output.
In one embodiment, as shown in fig. 1 to 2, the input end of the power management unit 3 is provided with a protection circuit 9, the protection circuit 9 is connected between a power supply and the power management unit 3, and the protection circuit 9 is composed of a fuse and two diodes.
In one embodiment, as shown in fig. 1 to 2, an amplifying circuit 10 is disposed at the output end of the digital-to-analog conversion unit 7, and the amplifying circuit 10 is composed of an amplifier, a triode and a resistor.
In one embodiment, as shown in fig. 1-2, the housing 1 is provided on the outside with a cable for connection to the transmitter integrated circuit.
In one embodiment, as shown in fig. 1-2, the sensor is formed by metal integrated processing, the piezoresistive pressure sensor 4 of the wheatstone bridge principle outputs a nonstandard mV signal, a wheatstone bridge is manufactured on a 17-4PH stainless steel beam through a paster process, and then the bridge leads are led to a transmitter circuit, so that the pressure and temperature compensation, the pressure calibration and the signal conditioning are performed on the sensor through the manufactured wheatstone bridge.
The transmitter integrated circuit is packaged in the metal tube shell, signals are led out of the tube shell through the 5-core cable, and the cable is firmly locked in the metal tube shell through the metal firmware, so that the firmness and the sealing performance are ensured.
Working principle: when the utility model works, firstly, the power supply is switched on, the power supply voltage is input into the power supply management unit 3 through the protection module, the power supply management unit 3 inputs working voltage for each MCU unit 6, meanwhile, the mode in the key unit 8 is pressed down, the pressure sensor 4 detects the pressure value, the pressure signal is input into the MCU unit 6 for processing, the display unit 5 displays the pressure value, and meanwhile, the signal is converted into an analog signal through the digital-to-analog conversion unit 7 and is output through the amplifying module.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (8)
1. An intelligent multi-signal output micro differential pressure transmitter, characterized in that the output micro differential pressure transmitter comprises: a housing, a cover connected to the housing, and a transmitter integrated circuit disposed within the housing;
The transmitter integrated circuit consists of a PCB, and a power management unit, a pressure sensor, a display unit, an MCU unit, a digital-to-analog conversion unit and a key unit which are arranged on the PCB;
And the MCU unit is controlled by the key unit to output voltage signals and current signals with different sizes.
2. The intelligent multi-signal output micro differential pressure transmitter according to claim 1, wherein the input end of the power management unit is connected with a power supply, and the output end of the power management unit is used for inputting working voltages to the pressure sensor, the MCU unit and the digital-to-analog conversion unit.
3. The intelligent multi-signal output micro differential pressure transmitter according to claim 1, wherein the pressure sensor is connected with the MCU unit, and the pressure sensor outputs a detection signal to the MCU unit.
4. The intelligent multi-signal output micro differential pressure transmitter according to claim 1, wherein the display unit is connected with the MCU unit, and the display unit displays the pressure value of the pressure sensor.
5. The intelligent multi-signal output micro differential pressure transmitter according to claim 1, wherein the key unit is connected with the MCU unit and is used for controlling the whole micro differential pressure transmitter.
6. The intelligent multi-signal output micro differential pressure transmitter according to claim 1, wherein the input end of the digital-to-analog conversion unit is connected with the MCU unit, receives the digital signal output by the MCU unit, and converts the digital signal into an analog signal for output.
7. The intelligent multi-signal output micro differential pressure transmitter according to claim 1, wherein the input end of the power management unit is provided with a protection circuit, the protection circuit is connected between a power supply and the power management unit, and the protection circuit is composed of a fuse and two diodes.
8. The intelligent multi-signal output micro differential pressure transmitter according to claim 1, wherein the output end of the digital-to-analog conversion unit is provided with an amplifying circuit, and the amplifying circuit is composed of an amplifier, a triode and a resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322845916.4U CN221173706U (en) | 2023-10-24 | 2023-10-24 | Intelligent multi-signal output micro differential pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322845916.4U CN221173706U (en) | 2023-10-24 | 2023-10-24 | Intelligent multi-signal output micro differential pressure transmitter |
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| Publication Number | Publication Date |
|---|---|
| CN221173706U true CN221173706U (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322845916.4U Active CN221173706U (en) | 2023-10-24 | 2023-10-24 | Intelligent multi-signal output micro differential pressure transmitter |
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| Country | Link |
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| CN (1) | CN221173706U (en) |
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2023
- 2023-10-24 CN CN202322845916.4U patent/CN221173706U/en active Active
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