CN214201370U - Gas sensor module signal conversion circuit and device - Google Patents
Gas sensor module signal conversion circuit and device Download PDFInfo
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- CN214201370U CN214201370U CN202023015627.4U CN202023015627U CN214201370U CN 214201370 U CN214201370 U CN 214201370U CN 202023015627 U CN202023015627 U CN 202023015627U CN 214201370 U CN214201370 U CN 214201370U
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Abstract
The utility model provides a signal conversion circuit and a device of a gas sensor module, which comprises a four-pin gas sensor and a power module connected with the gas sensor; the output port of the gas sensor is connected with the input port of the integrating circuit, the output port of the integrating circuit is connected with the base electrode of the first triode, and the collector electrode of the first triode is connected with the output port; the utility model discloses simple structure, the cost is lower, can realize the signal conversion of multiple type four-tube beriberi body sensor, has realized gaseous detection signal's stable output, and the suitability is high.
Description
Technical Field
The utility model relates to a gas sensor technical field, in particular to gas sensor module signal conversion circuit and device.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
A gas sensor is a device that converts information such as the composition and concentration of a gas into information that can be used by personnel, instruments, computers, and the like.
At present, gas sensors are developed rapidly and are various in types, standard signals are required to be detected and output generally, various conversion modules are arranged on the market at present, and if each type of sensor is provided with one module, economic waste can be caused; most of the existing conversion modules are complex and high in cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a gas sensor module signal conversion circuit and device, simple structure, the cost is lower, can realize the signal conversion of multiple type four-tube beriberi body sensor, has realized gaseous detection signal's stable output, and the suitability is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses the first aspect provides a gas sensor module signal conversion circuit.
A gas sensor module signal conversion circuit comprising: the gas sensor comprises a four-pin gas sensor and a power supply module connected with the gas sensor;
the output port of the gas sensor is connected with the input port of the integrating circuit, the output port of the integrating circuit is connected with the base electrode of the first triode, and the collector electrode of the first triode is connected with the output port.
As some possible implementations, the power module includes a bridge connected to an ac power source and a regulated power supply connected to the bridge, the regulated power supply is connected to the first port and the second port of the gas sensor, the third port of the gas sensor is grounded, and the fourth port is used as an output port.
By way of further limitation, the integration circuit includes a first amplifier, the fourth port is connected to the positive terminal of the first amplifier through a second resistor, and the negative terminal of the first amplifier is grounded through a first switch.
As a further limitation, the output terminal of the first amplifier is connected to the base of the first triode through a ninth resistor.
As a further limitation, the output end of the first amplifier is connected with the positive terminal of the first amplifier through a first diode after being connected with the output end of the second amplifier in a junction manner, and the positive terminal of the second amplifier is respectively connected with the ground through two resistors connected in parallel;
and the negative pole end of the second amplifier is connected with the ground through a third capacitor, and the negative pole end of the second amplifier is respectively connected with the output end of the voltage-stabilized power supply through a second diode and a sixth resistor which are connected in parallel.
As a further limitation, the output terminal of the regulated power supply is connected to the output terminal of the first amplifier through a third diode and a fifth resistor.
As a further limitation, the output end of the regulated power supply is connected with a potential debugging circuit, the potential debugging circuit comprises a third resistor and a sliding rheostat connected with the third resistor in parallel, the third resistor is connected with a fourth resistor after being connected with the sliding rheostat in parallel, and the fourth resistor is grounded.
As a further limitation, the output terminal of the bridge is connected in series with a fourth diode, which is connected in series with the first resistor, which is grounded.
As a further limitation, the collector of the first triode is connected with the sound-light alarm module, the sound-light alarm module is connected with the output end of the voltage-stabilized power supply, the sound-light alarm module comprises a buzzer and a fifth diode connected with the buzzer in parallel, and the fifth diode is connected with an eighth resistor in series.
The utility model discloses the second aspect provides a gas sensor module signal conversion equipment, include the first aspect gas sensor module signal conversion circuit.
Compared with the prior art, the beneficial effects of the utility model are that:
1. gas sensor module signal conversion equipment, simple structure, the cost is lower, can realize the signal conversion of multiple type four-tube beriberi body sensor, realized gaseous detection signal's stable output, the suitability is high.
2. Gas sensor module signal conversion equipment, through setting up the reputation alarm module, can realize gaseous detected signal's real-time warning, detectivity is high.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which form a part of the specification, 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 invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic connection diagram of a gas sensor module signal conversion circuit provided in embodiment 1 of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.
Example 1:
as shown in fig. 1, embodiment 1 of the present invention provides a gas sensor module signal conversion circuit, including: a four-pin gas sensor SEN1 and a power module connected with the gas sensor;
an output port of the gas sensor SEN1 is connected with an input port of the integrating circuit, an output port of the integrating circuit is connected with a base electrode of a first triode (9013NPN tube), and a collector electrode of the first triode is connected with the output port.
The power module includes electric bridge Q1 and the constant voltage power supply LM7805 of being connected with the electric bridge that is connected with alternating current power supply, and constant voltage power supply LM7805 is connected with gas sensor's first port and second port, and gas sensor's third port ground connection, fourth port are as the output port.
The integrating circuit comprises a first amplifier (LM324), the fourth port is connected with the positive terminal of the first amplifier LM324 through a second resistor R2, and the negative terminal of the first amplifier is grounded through a first switch SW 1.
The output end of the first amplifier is connected with the base of the first triode through a ninth resistor R9.
The output end of the first amplifier is connected with the output end of a second amplifier (LM324) in a tandem way and then is connected with the positive end of the first amplifier through a first diode D1, and the positive end of the second amplifier is respectively connected with the ground through two resistors (R7 and R8) connected in parallel;
the negative terminal of the second amplifier is connected with the ground through a third capacitor C3, and the negative terminal of the second amplifier is respectively connected with the output end of the regulated power supply through a second diode D2 and a sixth resistor R6 which are connected in parallel.
The output terminal of the regulated power supply is connected to the output terminal of the first amplifier through a third diode D02 and a fifth resistor R5.
The output end of the voltage-stabilized power supply is connected with a potential debugging circuit, the potential debugging circuit comprises a third resistor R3 and a slide rheostat R-A2 connected with the third resistor R3 in parallel, the third resistor R3 is connected with a fourth resistor R4 after being connected with the slide rheostat R-A2 in parallel, and the fourth resistor R4 is grounded.
The output terminal of the bridge Q1 is connected in series with a fourth diode D01, a fourth diode D01 is connected in series with a first resistor R1, and the first resistor R1 is connected to ground.
The collector of the first triode is connected with the sound-light alarm module, the sound-light alarm module is connected with the output end of the voltage-stabilized power supply, the sound-light alarm module comprises a buzzer LS1 and a fifth diode D03 connected with the buzzer in parallel, and the fifth diode is connected with an eighth resistor R8 in series.
The output port is connected with a switch ZK1 containing a plurality of normally open contacts, and the selective output of multiple signals is realized.
The sensor of the embodiment can be H2S gas sensor, CH4 gas sensor, acetone sensor, etc., which can be selected by those skilled in the art according to specific working conditions, and are not described herein again.
Example 2:
the embodiment 2 of the utility model provides a gas sensor module signal conversion equipment, include the utility model discloses embodiment 1 gas sensor module signal conversion circuit.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A gas sensor module signal conversion circuit characterized in that:
the method comprises the following steps: the gas sensor comprises a four-pin gas sensor and a power supply module connected with the gas sensor;
the output port of the gas sensor is connected with the input port of the integrating circuit, the output port of the integrating circuit is connected with the base electrode of the first triode, and the collector electrode of the first triode is connected with the output port.
2. The gas sensor module signal conversion circuit of claim 1, wherein:
the power supply module comprises an electric bridge connected with an alternating current power supply and a stabilized voltage power supply connected with the electric bridge, the stabilized voltage power supply is connected with a first port and a second port of the gas sensor, a third port of the gas sensor is grounded, and a fourth port of the gas sensor is used as an output port.
3. The gas sensor module signal conversion circuit of claim 2, wherein:
the integrating circuit comprises a first amplifier, a fourth port is connected with the positive electrode end of the first amplifier through a second resistor, and the negative electrode end of the first amplifier is grounded through a first switch.
4. The gas sensor module signal conversion circuit of claim 3, wherein:
the output end of the first amplifier is connected with the base electrode of the first triode through a ninth resistor.
5. The gas sensor module signal conversion circuit of claim 3, wherein:
the output end of the first amplifier is connected with the output end of the second amplifier in a tandem way and then is connected with the positive end of the first amplifier through a first diode, and the positive end of the second amplifier is respectively connected with the ground through two resistors connected in parallel;
and the negative pole end of the second amplifier is connected with the ground through a third capacitor, and the negative pole end of the second amplifier is respectively connected with the output end of the voltage-stabilized power supply through a second diode and a sixth resistor which are connected in parallel.
6. The gas sensor module signal conversion circuit of claim 3, wherein:
and the output end of the voltage-stabilized power supply is connected with the output end of the first amplifier through a third diode and a fifth resistor.
7. The gas sensor module signal conversion circuit of claim 3, wherein:
the output end of the voltage-stabilized power supply is connected with a potential debugging circuit, the potential debugging circuit comprises a third resistor and a sliding rheostat connected with the third resistor in parallel, the third resistor is connected with a fourth resistor after being connected with the sliding rheostat in parallel, and the fourth resistor is grounded.
8. The gas sensor module signal conversion circuit of claim 3, wherein:
the output end of the bridge is connected with a fourth diode in series, the fourth diode is connected with a first resistor in series, and the first resistor is grounded.
9. The gas sensor module signal conversion circuit of claim 3, wherein:
the collector of the first triode is connected with the sound-light alarm module, the sound-light alarm module is connected with the output end of the voltage-stabilized power supply, the sound-light alarm module comprises a buzzer and a fifth diode connected with the buzzer in parallel, and the fifth diode is connected with an eighth resistor in series.
10. A gas sensor module signal conversion device, its characterized in that: comprising a gas sensor module signal conversion circuit according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023015627.4U CN214201370U (en) | 2020-12-14 | 2020-12-14 | Gas sensor module signal conversion circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023015627.4U CN214201370U (en) | 2020-12-14 | 2020-12-14 | Gas sensor module signal conversion circuit and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214201370U true CN214201370U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023015627.4U Active CN214201370U (en) | 2020-12-14 | 2020-12-14 | Gas sensor module signal conversion circuit and device |
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|---|---|
| CN (1) | CN214201370U (en) |
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2020
- 2020-12-14 CN CN202023015627.4U patent/CN214201370U/en active Active
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