CN220912507U - Gas temperature detection device - Google Patents
Gas temperature detection device Download PDFInfo
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- CN220912507U CN220912507U CN202322568737.0U CN202322568737U CN220912507U CN 220912507 U CN220912507 U CN 220912507U CN 202322568737 U CN202322568737 U CN 202322568737U CN 220912507 U CN220912507 U CN 220912507U
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- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 55
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 44
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000005669 field effect Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of gas temperature detection, in particular to a gas temperature detection device which is used for detecting an engine gas temperature system and comprises a control unit, a wiring module, a voltage stabilizing circuit, a reference circuit, an analog-to-digital conversion circuit and a temperature amplifying circuit, wherein the control unit is connected into the engine gas temperature system through the wiring module, the control unit comprises a control chip with the model of STM32L073RZT, the voltage stabilizing circuit, the analog-to-digital conversion circuit, the temperature amplifying circuit and the control unit are electrically connected, the reference circuit is electrically connected with the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is electrically connected with the temperature conversion circuit. The method aims at detecting the gas temperature system of the engine under the conditions of no test run and no disassembly of related parts.
Description
Technical Field
The utility model relates to the technical field of gas temperature detection, in particular to a gas temperature detection device.
Background
The helicopter has higher accuracy requirement on the double-firing gas temperature in the actual flight process, and the double-firing gas temperature needs to be monitored in real time in the flight process; in the prior art, the monitoring principle aiming at a helicopter gas temperature system is as follows: when an error or abnormal indication condition occurs in the double-firing gas temperature of the helicopter, line measurement is needed to determine a line state, then test fault positioning inspection is conducted, the indication condition of a gas temperature system of the helicopter is inspected, and a fault machine part is replaced; each test run monitoring needs a plurality of workers to be completed, the labor cost is high, the consumption of the helicopter oil quantity is increased, and the purpose of quick fault positioning cannot be met; for this purpose, we propose a gas temperature detection device.
Disclosure of utility model
The utility model aims to provide a gas temperature detection device which is used for detecting a gas temperature system of an engine in a state that related parts are not tried on and disassembled.
In order to achieve the above purpose, the utility model provides a gas temperature detection device for detecting an engine gas temperature system, which comprises a control unit, a wiring module, a voltage stabilizing circuit, a reference circuit, an analog-to-digital conversion circuit and a temperature amplifying circuit, wherein the control unit is connected with the engine gas temperature system through the wiring module, the control unit comprises a control chip with the model of STM32L073RZT, the voltage stabilizing circuit, the analog-to-digital conversion circuit, the temperature amplifying circuit and the control unit are electrically connected, the reference circuit is electrically connected with the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is electrically connected with the temperature converting circuit.
Further, the temperature amplifying circuit comprises a first operational amplifier and a second operational amplifier, and the models of the first operational amplifier and the second operational amplifier are TL072CDT.
Further, the reverse input end of the first operational amplifier is connected to the reverse input end of the second operational amplifier through a resistor R19, the forward input end of the first operational amplifier is connected to the twentieth pin of the control chip through a resistor R10, the forward input end of the first operational amplifier is also connected to the analog-to-digital conversion circuit through a resistor R11, the output end of the first operational amplifier is connected to the forward input end of the second operational amplifier through a resistor R20, the forward input end of the second operational amplifier is also connected to the twentieth pin of the control chip through a resistor R13, and the output end of the second operational amplifier is connected to the twentieth pin of the control chip through a resistor R21.
Further, the voltage stabilizing circuit comprises a voltage stabilizing chip with the model number of TPS78230DDCR, the input end of the voltage stabilizing chip is connected with 5V voltage, and the output end of the voltage stabilizing chip outputs 3V voltage.
Further, a first pin of the voltage stabilizing chip is connected to the field effect transistor Q1, a second pin of the voltage stabilizing chip is grounded, a third pin of the voltage stabilizing chip is connected to one end of the resistor R1, the other end of the resistor R1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to the field effect transistor Q1 through the resistor R2, a fourth pin of the voltage stabilizing chip is grounded, a fifth pin of the voltage stabilizing chip is connected to one end of the capacitor C2, and the other end of the capacitor C2 is grounded.
Further, the analog-to-digital conversion circuit comprises an analog-to-digital conversion chip, and the model of the analog-to-digital conversion chip is DAC8830IDR.
Further, a first pin of the analog-to-digital conversion chip is connected to the temperature amplifying circuit, a second pin of the analog-to-digital conversion chip is grounded through a resistor R15, a third pin of the analog-to-digital conversion chip is connected to the reference circuit, a fourth pin of the analog-to-digital conversion chip is connected to a forty pin of the control chip, a fifth pin of the analog-to-digital conversion chip is connected to a thirty-eighth pin of the control chip through a resistor R18, a sixth pin of the analog-to-digital conversion chip is connected to a thirty-ninth pin of the control chip, a seventh pin of the analog-to-digital conversion chip is grounded, an eighth pin of the analog-to-digital converter is connected to the forty pin of the control chip through a resistor R14, an eighth pin of the analog-to-digital converter is connected to the thirty-eighth pin of the control chip through a resistor R16, and an eighth pin of the analog-to-digital converter is connected to the thirty-ninth pin of the control chip through a resistor R17.
Further, the reference circuit includes a reference chip of model REF3025 or REF3020 AIDBZR.
Further, a first pin of the reference chip is connected to the voltage stabilizing circuit, a second pin of the reference chip is connected to the reference circuit, and a third pin of the reference chip is grounded.
Further, the display device also comprises a display module, wherein the input end of the display module is electrically connected with the output end of the control unit, and the display module comprises a display screen with the model of GDC 0689.
The beneficial effects of the utility model include:
1. The gas temperature detection device is connected into the engine gas temperature system through the wiring module, and the voltage signal value is sent to the engine gas temperature system through the control unit and the reference circuit, so that the direct indication of the engine gas temperature can be realized, and the detection of the engine gas temperature system under the conditions of no trial run and no disassembly of related parts is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a gas temperature detecting device according to an embodiment of the present utility model;
Fig. 2 is a schematic circuit diagram of a control chip according to an embodiment of the present utility model;
fig. 3 is a schematic circuit diagram of a temperature amplifying circuit according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a voltage stabilizing circuit according to an embodiment of the present utility model;
fig. 5 is a schematic circuit diagram of an analog-to-digital conversion circuit according to an embodiment of the present utility model;
FIG. 6 is a schematic circuit diagram of a reference circuit according to an embodiment of the present utility model;
Fig. 7 is a schematic circuit diagram of a display module according to an embodiment of the utility model;
icon: 100-first operational amplifier, 200-second operational amplifier.
Detailed Description
The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. It should be noted that, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the azimuth or positional relationship based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Referring to fig. 1 to 7, a gas temperature detecting device provided by at least one embodiment of the present disclosure is configured to detect a gas temperature system of an engine, and includes a control unit, a wiring module, a voltage stabilizing circuit, a reference circuit, an analog-to-digital conversion circuit, and a temperature amplifying circuit, where the control unit is connected to the gas temperature system of the engine through the wiring module, the control unit includes a control chip with a model number STM32L073RZT, the voltage stabilizing circuit, the analog-to-digital conversion circuit, the temperature amplifying circuit and the control unit are electrically connected, the reference circuit and the analog-to-digital conversion circuit are electrically connected, and the analog-to-digital conversion circuit and the temperature converting circuit are electrically connected; the U1 in FIG. 1 is a control chip, and is mainly used for performing data processing according to the existing processing algorithm and logic, transmitting the voltage value required to be indicated to an engine gas temperature system, and stabilizing the input voltage to the required voltage level by a voltage stabilizing circuit to provide a stable power supply for the control chip; the device can transmit the voltage value to be indicated to the engine gas temperature system in a mode of a digital display screen, a data interface and the like, and converts the voltage value into an analog signal through an analog-to-digital conversion circuit so that the engine gas temperature system can process the voltage value;
The working principle of the gas temperature detection device is described below by taking a helicopter as an example:
Firstly, connecting the gas temperature detection device to an engine gas temperature system of a helicopter by using a wiring module, turning on a power supply of the helicopter, keeping each machine part of the gas temperature system of the helicopter normally powered, then using a control unit to indicate a voltage value to a position of the engine gas temperature system of the helicopter, using an analog-to-digital conversion circuit to transmit the voltage value to the gas temperature system in an analog signal mode, and after the gas temperature system receives a value required to be indicated, verifying working states of each machine part, a sensor, a circuit and a limiting resistor according to the value, and further judging whether the working of a gas temperature loop is normal by comparing the actually measured temperature value with an expected temperature value, thereby realizing detection of the engine gas temperature system under the state of not testing and not dismantling related machine parts;
Specifically, reference may be made to the following table:
| Gas thermometer indication | Corresponding to the required voltage value (mv) | Detecting device setting code |
| 100 | 2.9 | 0064 |
| 200 | 7.0 | 0196 |
| 300 | 11.0 | 0330 |
| 400 | 15.1 | 0462 |
| 500 | 19.5 | 0601 |
| 600 | 23.7 | 0736 |
| 700 | 27.9 | 0870 |
| 800 | 31.9 | 1001 |
| 900 | 35.9 | 1124 |
| 1000 | 39.8 | 1243 |
TABLE 1
Table 1 is a relation table between the indication of the gas thermometer and the corresponding voltage indication value of a helicopter after the test;
Preferably, as shown in fig. 2 and fig. 3, the temperature amplifying circuit includes a first operational amplifier 100 and a second operational amplifier 200, and the models of the first operational amplifier 100 and the second operational amplifier 200 are TL072CDT; the reverse input end of the first operational amplifier 100 is connected to the reverse input end of the second operational amplifier 200 through a resistor R19, the forward input end of the first operational amplifier 100 is connected to the twentieth pin of the control chip through a resistor R10, the forward input end of the first operational amplifier 100 is also connected to the analog-to-digital conversion circuit through a resistor R11, the output end of the first operational amplifier 100 is connected to the forward input end of the second operational amplifier 200 through a resistor R20, the forward input end of the second operational amplifier 200 is also connected to the twentieth pin of the control chip through a resistor R13, and the output end of the second operational amplifier 200 is connected to the twentieth pin of the control chip through a resistor R21; through the connection and the configuration, the temperature amplifying circuit can amplify and transmit the input signal to the control chip for processing, so that the sensitivity and the accuracy of the input signal are improved, and the control chip can better process the voltage indication value.
Preferably, as shown in fig. 4, the voltage stabilizing circuit includes a voltage stabilizing chip with a model TPS78230DDCR, the input end of the voltage stabilizing chip is connected to 5V voltage, the output end of the voltage stabilizing chip outputs 3V voltage, the first pin of the voltage stabilizing chip is connected to the field effect transistor Q1, the second pin of the voltage stabilizing chip is grounded, the third pin of the voltage stabilizing chip is connected to one end of the resistor R1, the other end of the resistor R1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to the field effect transistor Q1 through the resistor R2, the fourth pin of the voltage stabilizing chip is grounded, the fifth pin of the voltage stabilizing chip is connected to one end of the capacitor C2, and the other end of the capacitor C2 is grounded; u2 in FIG. 4 is a voltage stabilizing chip, and through the connection and configuration of the voltage stabilizing chip, the voltage stabilizing circuit can stabilize the input voltage at the 3V output voltage and provide stable power supply so as to ensure that other circuits and components can work normally, and avoid the problem caused by power supply fluctuation.
Preferably, as shown in fig. 5, the analog-to-digital conversion circuit includes an analog-to-digital conversion chip, the analog-to-digital conversion chip is of a type of DAC8830IDR, a first pin of the analog-to-digital conversion chip is connected to the temperature amplification circuit, a second pin of the analog-to-digital conversion chip is grounded through a resistor R15, a third pin of the analog-to-digital conversion chip is connected to the reference circuit, a fourth pin of the analog-to-digital conversion chip is connected to a forty pin of the control chip, a fifth pin of the analog-to-digital conversion chip is connected to a thirty-eighth pin of the control chip through a resistor R18, a sixth pin of the analog-to-digital conversion chip is connected to a thirty-ninth pin of the control chip, a seventh pin of the analog-to-digital conversion chip is grounded, an eighth pin of the analog-to-digital converter is connected to the thirty-eighth pin of the control chip through a resistor R16, and an eighth pin of the analog-to-digital converter is connected to the thirty-ninth pin of the control chip through a resistor R17; wherein, U5 in fig. 5 is an analog-to-digital conversion chip;
Preferably, as shown in fig. 6, the reference circuit includes a reference chip with model number REF3025 or REF3020AIDBZR, a first pin of the reference chip is connected to the voltage stabilizing circuit, a second pin of the reference chip is connected to the reference circuit, and a third pin of the reference chip is grounded; wherein U4 in FIG. 6 is a reference chip, which can provide high-precision and low-noise reference voltage, improve the performance and reliability of the analog-to-digital converter, and further optimize the precision and stability of the temperature detection device.
Preferably, as shown in fig. 7, the gas temperature detection device further comprises a display module, wherein the input end of the display module is electrically connected with the output end of the control unit, the display module comprises a display screen with a model of GDC0689, and the display screen is used for providing real-time data display so as to realize the visualization and interactivity of the gas temperature detection device, for example, buttons for setting voltage indication values are configured on the display screen.
In addition to the above description, the following points are described:
(1) The drawings of the embodiments of the present disclosure relate only to the structures related to the embodiments of the present disclosure, and other structures may refer to general designs;
(2) The control programs of data processing, data conversion and the like in the present disclosure are all mature conventional technologies in the prior art, and a person skilled in the art can implement the application of the present utility model according to the same functional principles in the prior art, and the program part is not the innovation point of the present utility model;
(3) The embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. The gas temperature detection device is used for detecting a gas temperature system of an engine and is characterized by comprising a control unit, a wiring module, a voltage stabilizing circuit, a reference circuit, an analog-to-digital conversion circuit and a temperature amplifying circuit, wherein the control unit is connected into the gas temperature system of the engine through the wiring module, the control unit comprises a control chip with the model of STM32L073RZT, the voltage stabilizing circuit, the analog-to-digital conversion circuit, the temperature amplifying circuit and the control unit are electrically connected, the reference circuit is electrically connected with the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is electrically connected with the temperature converting circuit.
2. The gas temperature detection device according to claim 1, wherein the temperature amplification circuit comprises a first operational amplifier and a second operational amplifier, and the first operational amplifier and the second operational amplifier are TL072CDT.
3. The gas temperature detecting device according to claim 2, wherein the reverse input end of the first operational amplifier is connected to the inverting input end of the second operational amplifier through a resistor R19, the forward input end of the first operational amplifier is connected to the twentieth pin of the control chip through a resistor R10, the forward input end of the first operational amplifier is also connected to the analog-to-digital conversion circuit through a resistor R11, the output end of the first operational amplifier is connected to the forward input end of the second operational amplifier through a resistor R20, the forward input end of the second operational amplifier is also connected to the twentieth pin of the control chip through a resistor R13, and the output end of the second operational amplifier is connected to the twentieth pin of the control chip through a resistor R21.
4. The gas temperature detection device according to claim 1, wherein the voltage stabilizing circuit comprises a voltage stabilizing chip with a model number of TPS78230DDCR, the input end of the voltage stabilizing chip is connected with 5V voltage, and the output end of the voltage stabilizing chip outputs 3V voltage.
5. The gas temperature detecting device according to claim 4, wherein a first pin of the voltage stabilizing chip is connected to the field effect transistor Q1, a second pin of the voltage stabilizing chip is grounded, a third pin of the voltage stabilizing chip is connected to one end of the resistor R1, the other end of the resistor R1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to the field effect transistor Q1 through the resistor R2, a fourth pin of the voltage stabilizing chip is grounded, a fifth pin of the voltage stabilizing chip is connected to one end of the capacitor C2, and the other end of the capacitor C2 is grounded.
6. The gas temperature sensing device of claim 1, wherein the analog-to-digital conversion circuit comprises an analog-to-digital conversion chip, the analog-to-digital conversion chip being of the type DAC8830IDR.
7. The gas temperature detecting device according to claim 6, wherein the first pin of the analog-to-digital conversion chip is connected to the temperature amplifying circuit, the second pin of the analog-to-digital conversion chip is connected to the ground through a resistor R15, the third pin of the analog-to-digital conversion chip is connected to the reference circuit, the fourth pin of the analog-to-digital conversion chip is connected to the forty pin of the control chip, the fifth pin of the analog-to-digital conversion chip is connected to the thirty-eighth pin of the control chip through a resistor R18, the sixth pin of the analog-to-digital conversion chip is connected to the thirty-ninth pin of the control chip, the seventh pin of the analog-to-digital conversion chip is connected to the ground, the eighth pin of the analog-to-digital converter is connected to the fortieth pin of the control chip through a resistor R14, the eighth pin of the analog-to-digital converter is connected to the thirty-eighth pin of the control chip through a resistor R16, and the eighth pin of the analog-to-digital converter is connected to the thirty-ninth pin of the control chip through a resistor R17.
8. The gas temperature sensing device of claim 1, wherein the reference circuit comprises a reference chip of model REF3025 or REF3020 AIDBZR.
9. The gas temperature detection device of claim 8, wherein a first pin of the reference chip is connected to the voltage stabilizing circuit, a second pin of the reference chip is connected to the reference circuit, and a third pin of the reference chip is grounded.
10. The gas temperature detection device according to any one of claims 1 to 9, further comprising a display module, an input of the display module being electrically connected to an output of the control unit, the display module comprising a display screen of model GDC 0689.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322568737.0U CN220912507U (en) | 2023-09-20 | 2023-09-20 | Gas temperature detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322568737.0U CN220912507U (en) | 2023-09-20 | 2023-09-20 | Gas temperature detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220912507U true CN220912507U (en) | 2024-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322568737.0U Active CN220912507U (en) | 2023-09-20 | 2023-09-20 | Gas temperature detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220912507U (en) |
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2023
- 2023-09-20 CN CN202322568737.0U patent/CN220912507U/en active Active
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