CN203941126U - Semiconductor gas sensor array measurement system - Google Patents
Semiconductor gas sensor array measurement system Download PDFInfo
- Publication number
- CN203941126U CN203941126U CN201420356985.7U CN201420356985U CN203941126U CN 203941126 U CN203941126 U CN 203941126U CN 201420356985 U CN201420356985 U CN 201420356985U CN 203941126 U CN203941126 U CN 203941126U
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- semiconductor gas
- gas sensor
- measurement system
- sensor array
- impedance matching
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 37
- 238000005259 measurement Methods 0.000 title claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 abstract description 39
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000013142 basic testing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a kind of the utility model that can simultaneously measure by multiple gas sensors and show in real time by host computer and relates to a kind of semiconductor gas sensor array measurement system that can measure simultaneously and pass through the real-time demonstration of host computer by multiple gas sensors, it comprises the semiconductor gas sensor being made up of several semiconductor gas sensors, described semiconductor gas sensor connects impedance matching filtering circuit, the output terminal of impedance matching filtering circuit connects A/D change-over circuit, and the output terminal of A/D change-over circuit connects PC.Semiconductor gas sensor that the utility model adopts is highly sensitive, fast response time, volume are little, lightweight and it is integrated to be convenient to, it is integrated to make to detect conversion; Adopted 60 semiconductor gas sensors to detect 60 kinds of gases, detection efficiency is high, saving human resources simultaneously.
Description
Technical field
The utility model is usually directed to a kind of sensing system, specifically, relates to and can measure simultaneously and pass through a kind of sensing system that host computer shows in real time by multiple gas sensors.
Background technology
Along with the development of modern industry, the waste gas of industry-by-industry discharge also grows with each passing day, the air quality problem of going from bad to worse has caused people's attention, in order to monitor air quality, also seem particularly important for the detection of gas and the measurement of concentration, measurement and the data analysis of sensor array to gas and concentration all has important value in many applications, researchers have developed the gas sensor of many types, semiconductor gas sensor has highly sensitive, the advantages such as low cost of manufacture and signal measurement means are simple, but current system can only detect demarcation by single-sensor, and detection once can only obtain simpler characterisitic parameters, therefore detection efficiency is low, means are single, waste of manpower resource, a lot of systems need the real-time companion of professional staff to record observation in instrument and meter left and right, and easily because fatigue causes artificial measuring error, increase staff's burden, cannot meet the detection demand of sensor to gas in batch production, sometimes the gas that sensor detects is to have pollution, poisonous gas, should not there be personnel to stop, therefore, in the urgent need to a kind of sensor array measuring system.
Utility model content
In view of the above problems, the utility model is a kind of semiconductor gas sensor array measurement system, it comprises the semiconductor gas sensor being made up of several semiconductor gas sensors, described semiconductor gas sensor connects impedance matching filtering circuit, the output terminal of impedance matching filtering circuit connects A/D change-over circuit, and the output terminal of A/D change-over circuit connects PC.
The output terminal of described A/D change-over circuit is connected to PC by telecommunication cable.
Described impedance matching filtering circuit is arranged on sensor collection plate, and semiconductor gas sensor adopts plug form to be connected on sensor collection plate.
The quantity of described semiconductor gas sensor is at least 50, and is arrayed together.
The quantity of described semiconductor gas sensor is 60.
The beneficial effects of the utility model: semiconductor gas sensor that 1, the utility model adopts is highly sensitive, fast response time, volume are little, lightweight and it is integrated to be convenient to, it is integrated to make to detect conversion; 2, adopted 60 semiconductor gas sensors to detect 60 kinds of gases, detection efficiency is high, saving human resources simultaneously.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the utility model sensor basic test circuit diagram.
Embodiment
As shown in Figure 1, a kind of semiconductor gas sensor array measurement system, it comprises the semiconductor gas sensor being made up of several semiconductor gas sensors, semiconductor gas sensor connects impedance matching filtering circuit, the output terminal of impedance matching filtering circuit connects A/D change-over circuit, and the output terminal of A/D change-over circuit connects PC.
The output terminal of A/D change-over circuit is connected to PC by telecommunication cable.
Impedance matching filtering circuit is arranged on sensor collection plate, and semiconductor gas sensor adopts plug form to be connected on sensor collection plate.
The quantity of semiconductor gas sensor is at least 50, can be also 60 or even more, and be regularly arrayed together.
Principle of work of the present utility model is: the signal of semiconductor gas sensor output is sent into impedance matching filtering circuit and carry out signal amplification, be sent to A/D change-over circuit via communication cable again, convert to after digital signal and send on PC and show, the content of its demonstration is the real time data that semiconductor gas sensor is sent.
The measurement of gas sensor adopts current/voltage method of testing, and as shown in Figure 2, this sensor need to apply 2 voltages to basic test principle: heater voltage VH and test voltage VC.Wherein VH is used to sensor that specific working temperature is provided.VC is for measuring the voltage on the pull-up resistor R connecting with sensor.This sensor has slight polarity, and VC need use direct supply.Meeting under the prerequisite of sensor electrical performance requirement, VC and VH can share same power circuit.For the performance of good utilisation sensor more, need to select appropriate R value.Sensor array is placed in to gas reaction chamber, sensor with gas reaction process in resistance change, dividing potential drop on pull-up resistor R is changed, carry out first filtering thereon and carry out between impedance matching load voltage signal is matched-5V ~+5V.
Claims (5)
1. a semiconductor gas sensor array measurement system, it is characterized in that: it comprises the semiconductor gas sensor being made up of several semiconductor gas sensors, described semiconductor gas sensor connects impedance matching filtering circuit, the output terminal of impedance matching filtering circuit connects A/D change-over circuit, and the output terminal of A/D change-over circuit connects PC.
2. semiconductor gas sensor array measurement system according to claim 1, is characterized in that: the output terminal of described A/D change-over circuit is connected to PC by telecommunication cable.
3. semiconductor gas sensor array measurement system according to claim 1, is characterized in that: described impedance matching filtering circuit is arranged on sensor collection plate, and semiconductor gas sensor adopts plug form to be connected on sensor collection plate.
4. semiconductor gas sensor array measurement system according to claim 1, is characterized in that: the quantity of described semiconductor gas sensor is at least 50, and is arrayed together.
5. semiconductor gas sensor array measurement system according to claim 4, is characterized in that: the quantity of described semiconductor gas sensor is 60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356985.7U CN203941126U (en) | 2014-06-30 | 2014-06-30 | Semiconductor gas sensor array measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356985.7U CN203941126U (en) | 2014-06-30 | 2014-06-30 | Semiconductor gas sensor array measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203941126U true CN203941126U (en) | 2014-11-12 |
Family
ID=51860430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420356985.7U Expired - Fee Related CN203941126U (en) | 2014-06-30 | 2014-06-30 | Semiconductor gas sensor array measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203941126U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769978A (en) * | 2017-01-24 | 2017-05-31 | 郑州良源分析仪器有限公司 | Fermentation tank tail gas in-line analyzer |
| CN110455870A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | Portable multi-channel gas sensing monitor and its application |
| CN110455869A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | The gas sensing monitoring probe and its application of included sampling resistor |
-
2014
- 2014-06-30 CN CN201420356985.7U patent/CN203941126U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769978A (en) * | 2017-01-24 | 2017-05-31 | 郑州良源分析仪器有限公司 | Fermentation tank tail gas in-line analyzer |
| CN106769978B (en) * | 2017-01-24 | 2019-09-10 | 郑州良源分析仪器有限公司 | Fermentation tank tail gas in-line analyzer |
| CN110455870A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | Portable multi-channel gas sensing monitor and its application |
| CN110455869A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | The gas sensing monitoring probe and its application of included sampling resistor |
| CN110455869B (en) * | 2018-05-07 | 2023-07-25 | 中国石油化工股份有限公司 | Gas-sensitive sensing monitoring probe with sampling resistor and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Semiconductor gas sensor array measuring system Effective date of registration: 20161215 Granted publication date: 20141112 Pledgee: Xinxiang Henan plain rural commercial bank Limited by Share Ltd. Pledgor: HENAN SHENGMASI SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: 2016990001113 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190412 Granted publication date: 20141112 Pledgee: Xinxiang Henan plain rural commercial bank Limited by Share Ltd. Pledgor: HENAN SHENGMASI SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: 2016990001113 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |