CN215728479U - Sensor for monitoring reliability of valve - Google Patents
Sensor for monitoring reliability of valve Download PDFInfo
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- CN215728479U CN215728479U CN202121102636.9U CN202121102636U CN215728479U CN 215728479 U CN215728479 U CN 215728479U CN 202121102636 U CN202121102636 U CN 202121102636U CN 215728479 U CN215728479 U CN 215728479U
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Abstract
The application belongs to valve manufacturing field in particular to sensor of monitoring valve reliability includes: the current detection module, the voltage detection module and the auxiliary circuit thereof; the current auxiliary detection circuit comprises a current input end circuit and a current output end circuit, wherein a positive input end of the current input end circuit comprises a first resistor and a second resistor which are connected in parallel, and a negative input end of the current input end circuit comprises a third resistor and a fourth resistor which are connected in parallel; the positive output end of the current output end is connected with the first output port, and the negative output end of the current output end is connected with the third output port; the voltage auxiliary detection circuit comprises a voltage input end circuit and a voltage output end circuit; the positive input end of the voltage input circuit is connected with the fifth resistor, and the negative input end of the voltage input circuit is connected with the sixth resistor; and the positive output end and the negative output end of the voltage output end circuit are connected with the first output port and the third output port. The utility model can provide voltage and current detection signals with higher precision.
Description
Technical Field
The utility model belongs to the field of manufacturing of equipment valves, and particularly relates to a sensor for verifying the reliability of a valve.
Background
Various tests, such as durability tests or proof tests, are required during the valve manufacturing process. It is necessary to repeatedly close or open the valve during the test and to detect the open or closed state of the valve using a sensor. The sensor converts mechanical operation of the valve into an electrical signal, and it is necessary to provide a sensor with higher accuracy in order to improve detection accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sensor for measuring the reliability of a valve, which improves the detection precision. A sensor for monitoring valve reliability, comprising:
the device comprises a current detection module and a voltage detection module;
the current detection module comprises a current detection chip and a current auxiliary detection circuit;
the voltage detection module comprises a voltage detection chip and a voltage auxiliary detection circuit;
the current auxiliary detection circuit comprises a current input end circuit and a current output end circuit, wherein a positive input end of the current input end circuit comprises a first resistor and a second resistor which are connected in parallel, and a negative input end of the current input end circuit comprises a third resistor and a fourth resistor which are connected in parallel; the positive output end of the current output end is connected with the first output port, and the negative output end of the current output end is connected with the third output port;
the voltage auxiliary detection circuit comprises a voltage input end circuit and a voltage output end circuit; the positive input end of the voltage input circuit is connected with a fifth resistor, and the negative input end of the voltage input circuit is connected with a sixth resistor;
and the positive output end and the negative output end of the voltage output end circuit are connected with the first output port and the third output port.
In the preferred embodiment of the present application, the ground terminal of the voltage detection chip is connected in series with an LED indicating light emitting diode and an output resistor.
In a preferred embodiment of the present application, the first output port and the third output port are respectively connected in series to an output resistor.
In the preferred embodiment of the present application, the model of the voltage detection chip is VSM025A/8MA, and the model of the current detection module is ACS712 ELCTR-05B.
In the preferred embodiment of the present application, the current detection module and the voltage detection module detect current and voltage signals generated when the valve is opened and closed.
In the preferred technical scheme of this application, current detection module and voltage detection module detect the electric current and the voltage signal that produce when the valve is opened and closed.
The utility model can provide voltage and current detection signals with higher precision.
Drawings
Fig. 1 is a circuit structure embodiment according to the present invention.
Fig. 2 is a schematic structural diagram of an MCU used in the technical solution of the present application.
Detailed Description
The following describes the technical solutions of the present invention in further detail with reference to the accompanying drawings to help those skilled in the art understand the gist of the present invention.
Referring to fig. 1, a sensor 100 for monitoring reliability of a valve is composed of a voltage detection module and a current detection module and corresponding auxiliary circuits. The data of the sensor 100 is transmitted to the MCU through the data signal pin, so that the MCU transmits the data to the upper computer.
The voltage detection module is composed of a current detection chip U1 and an auxiliary circuit. The signal of the voltage detection chip U1 is VSM025A/8MA, the auxiliary circuit is connected with the input end and the output end of the voltage detection chip, and the original signal and the signal processed by the chip U1 are output to the MCU through the auxiliary circuit.
The voltage auxiliary detection circuit includes a voltage input terminal circuit 102 and a voltage output terminal circuit 104. The voltage auxiliary detection circuit includes a voltage input terminal circuit 102 and a voltage output terminal circuit 104. The positive input terminal of the voltage input terminal circuit 105 includes a first resistor R1 and a second resistor R2 connected in parallel, and the first resistor R1 and the second resistor R2 are preferably 1K resistors. The negative input end of the voltage input end circuit comprises a third resistor R3 and a fourth resistor R4 which are connected in parallel, and the third resistor R3 and the fourth resistor R4 are preferably 1K resistors.
In the preferred embodiment shown in fig. 1, the positive output terminal of the voltage output terminal 104 is connected in series with the eighth resistor R8, and the negative output terminal of the voltage output terminal is connected in series with the ninth resistor R9. The voltage detection module U1 further includes a status signal output port, the status signal output port is connected to the fourth port 4, the status signal output port is connected in series to the tenth resistor R10, the fourth port is connected in series to the output resistor R11, and a status indication LED is connected in series between the tenth resistor R10 and the output resistor R11.
The voltage detection module U2 is preferably of the type ACS712 ELCTR-05B. The voltage assist detection circuit includes a voltage input terminal circuit 106 and a voltage output terminal circuit 108.
The positive input end of the current input end circuit 106 is connected with the fifth resistor R5, and the negative input end of the current input end circuit is connected with the sixth resistor R6; the fifth resistor R5 and the sixth resistor R6 are preferably 1K resistors. The first port p1 and the second port p2 of the current input end are connected in parallel, and the third port p3 and the fourth port p4 of the current input end are connected in parallel.
And the negative output end of the current output end is connected with the second output port 2. The positive output port of the current output end is connected with the output resistor R12, and the negative output port of the current output end is connected with the output resistor R10. And a state port of the current output end is connected with the state indicating LED.
The current detection chip U2 and the voltage detection chip U1 detect current and voltage signals generated when the monitoring valve is switched. The voltage signal or the current signal can be positively correlated with the position of the valve switch, so that the MCU can conveniently judge the position of the valve switch.
Referring to fig. 2, the MCU receives voltage and current signals from the first to fourth ports (numbered 1-4 in the drawing), and may transmit the voltage or current signals to an upper computer (not shown) through a communication module T1. The MCU can also convert the voltage and current signals into the position of the valve, and the MCU can also comprise a display in the preferable scheme, and the MCU controls the display to display the test state. Compared with the prior art, the technical scheme can provide voltage and current detection signals with higher precision, and can reflect the test state of the valve through the voltage or current signals.
Claims (5)
1. A sensor for monitoring reliability of a valve, comprising:
the device comprises a current detection module and a voltage detection module;
the current detection module comprises a current detection chip and a current auxiliary detection circuit;
the voltage detection module comprises a voltage detection chip and a voltage auxiliary detection circuit;
the current auxiliary detection circuit comprises a current input end circuit and a current output end circuit, wherein a positive input end of the current input end circuit comprises a first resistor and a second resistor which are connected in parallel, and a negative input end of the current input end circuit comprises a third resistor and a fourth resistor which are connected in parallel; the positive output end of the current output end is connected with the first output port, and the negative output end of the current output end is connected with the third output port;
the voltage auxiliary detection circuit comprises a voltage input end circuit and a voltage output end circuit; the positive input end of the voltage input circuit is connected with a fifth resistor, and the negative input end of the voltage input circuit is connected with a sixth resistor;
and the positive output end and the negative output end of the voltage output end circuit are connected with the first output port and the third output port.
2. The sensor for monitoring reliability of a valve according to claim 1, wherein the ground terminal of the voltage detection chip is connected in series with an LED indicating light emitting diode and an output resistor.
3. The sensor for monitoring reliability of a valve according to claim 2, wherein the first output port and the third output port are respectively connected in series with an output resistor.
4. The sensor for monitoring the reliability of a valve according to claim 1, wherein the voltage detection chip has a model number of VSM025A/8MA, and the current detection module has a model number of ACS712 ELCTR-05B.
5. The sensor for monitoring reliability of a valve of claim 1, wherein the current detection module and the voltage detection module detect current and voltage signals generated when the valve is opened and closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121102636.9U CN215728479U (en) | 2021-05-21 | 2021-05-21 | Sensor for monitoring reliability of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121102636.9U CN215728479U (en) | 2021-05-21 | 2021-05-21 | Sensor for monitoring reliability of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215728479U true CN215728479U (en) | 2022-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121102636.9U Active CN215728479U (en) | 2021-05-21 | 2021-05-21 | Sensor for monitoring reliability of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215728479U (en) |
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2021
- 2021-05-21 CN CN202121102636.9U patent/CN215728479U/en active Active
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