CN202421107U - Parameter testing system for gas sensitive element - Google Patents
Parameter testing system for gas sensitive element Download PDFInfo
- Publication number
- CN202421107U CN202421107U CN2011203802788U CN201120380278U CN202421107U CN 202421107 U CN202421107 U CN 202421107U CN 2011203802788 U CN2011203802788 U CN 2011203802788U CN 201120380278 U CN201120380278 U CN 201120380278U CN 202421107 U CN202421107 U CN 202421107U
- Authority
- CN
- China
- Prior art keywords
- voltage signal
- gas sensor
- test
- gas
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides a parameter testing system for a gas sensitive element. The parameter testing system comprises a testing host, a data conversion module and a processor, wherein the testing host is used for simulating the working environment of the gas sensitive element, and outputting an analogue voltage signal converted from sensed gas information in the environment; the data conversion module is connected with the testing host, and is used for performing analogue-to-digital conversion on the analogue voltage signal to convert the analogue voltage signal into a digital signal; and the processor is connected with the data conversion module, and is used for installing matched test software and analyzing and computing the digital signal to obtain a test parameter of the gas sensitive element. According to the parameter testing system for the gas sensitive element, the parameter of the gas sensitive element can be tested in a computer aided way, and complex operation and computation processing can be replaced by the intelligent processing of a computer, so that the development and production efficiency of the gas sensitive element is improved, and manpower and material cost in a testing process is lowered.
Description
Technical field
The utility model relates to field tests, in particular, relates to a kind of gas sensor parameter test system.
Background technology
Gas sensor is a kind of element that detects specific gas; The main application has: the detection of ethanol and the detection of human oral cavity halitosis etc. in the detection of the detection of CO gas, the detection of methane gas, coal gas, the detection of freon, the expiration; It becomes electric signal with gaseous species and concentration dependent information translation thereof; Just can obtain in environment, to have the relevant information of situation according to the power of these electric signal, thereby can detect, monitor and report to the police with gas to be measured; Can also form automatic detection, control and warning system through interface circuit and computing machine, so parameter testings such as the sensitivity of gas sensor are very important to the quality of gas sensor.
At present; In the research and production of gas sensor, need carry out a large amount of tests and calculating to the parameter of gas sensor, and these work major parts are repetitions and loaded down with trivial details; These need of work manual works go to accomplish; The staff is in loaded down with trivial details data test, analysis and the calculating, and the poor efficiency of processing mode has restricted the exploitation and the production of gas sensor to a great extent, makes that also gas sensor parameter test method cost consumption on the man power and material is excessive in the prior art.
The utility model content
In view of this, the utility model discloses a kind of system of gas sensor parameter testing, to overcome in the prior art since the extensive work of parameter testing analyze and calculate by manual work, the exploitation of the poor efficiency restriction gas sensor of processing mode and the problem of production.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of gas sensor parameter test system is characterized in that, comprising:
Test Host is used to simulate the working environment of gas sensor, the analog voltage signal that gas information is converted in the output perception environment;
Link to each other with said Test Host, be used for said analog voltage signal is carried out analog to digital conversion, said analog voltage signal is converted into the data conversion module of digital signal;
Said data conversion module links to each other, and is used to install supporting testing software, said digital signal is analyzed and is calculated, with the processor of the test parameter that obtains said gas sensor.
Wherein, the analog voltage signal of the said Test Host output of this system is the gas sensor voltage signal and humiture voltage signal warm, that humidity sensor transforms that gas information is converted in the said gas sensor perception environment.
Wherein, said data conversion module comprises:
Link to each other with said Test Host, be used for said analog voltage signal is carried out signal transformation, the signal conversion circuit of output demodulation and filtered voltage signal;
Link to each other with said processor with said signal conversion circuit respectively, be used for said demodulation and filtered voltage signal are converted into the A/D analog to digital conversion circuit of digital signal.
Wherein, this system also comprises:
Link to each other with said processor, be used for the test parameter of said gas sensor with literal, the dynamic test result display module that shows of figure.
Wherein, said Test Host is furnished with special-purpose air chest, through the vacuum rubber sealing said air chest build-in test gas is isolated from the outside.
Wherein, be provided with in the said air chest:
Temperature, humidity sensing device are used for monitoring in real time temperature and the humidity in the said air chest;
Annotate exhaust, stirring apparatus, be used for real reaction, simulation and control gas sensor ambient condition on every side;
Vaporising device, the heating arrangement when being used for monitoring liquid steam makes liquid vapour evaporation becoming gas.
Can know via above-mentioned technical scheme; Compared with prior art; The utility model openly provides a kind of system of gas sensor parameter testing, can combine computer-aided test gas sensor parameter, changes troublesome operation and computing into computing machine and carries out intellectuality and handle; Improve the exploitation and the production efficiency of gas sensor, also made simultaneously manpower and the reduction of material resources cost in test process.
Description of drawings
Fig. 1 is system's picture group of the disclosed a kind of gas sensor test of the utility model embodiment;
Fig. 2 is the concrete picture group of the disclosed a kind of gas sensor parameter test system of the utility model embodiment;
Fig. 3 is the concrete picture group in the production of the disclosed a kind of gas sensor parameter test system of the utility model embodiment.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of gas sensor parameter test system, sees also accompanying drawing 1, is system's picture group of the disclosed a kind of gas sensor test of the utility model embodiment; Comprise: Test Host (101) is used to simulate the working environment of gas sensor, the analog voltage signal that gas information is converted in the output perception environment; Data conversion module (102) is used for said analog voltage signal is carried out analog to digital conversion, converts said analog voltage signal into digital signal; Processor (103) is used to install supporting testing software, said digital signal is analyzed and is calculated, to obtain the test parameter of said gas sensor.
Test Host is furnished with special-purpose air chest, through the vacuum rubber sealing said air chest build-in test gas is isolated from the outside.Be provided with in the air chest: temperature, humidity sensing device are used for monitoring in real time temperature and the humidity in the said air chest; Annotate exhaust, stirring apparatus, be used for real reaction, simulation and control gas sensor ambient condition on every side; Vaporising device, the heating arrangement when being used for monitoring liquid steam makes liquid vapour evaporation becoming gas.
According to gas sensor type design signal acquisition circuit; Process gas sensor test board (grafting gas sensor), make test board (for test board provides connector and condition of work such as voltage is provided), be furnished with special-purpose air chest on the test board according to test board specification and gas sensor signal characteristic; Through the vacuum rubber sealing gas tank build-in test gas is isolated from the outside; Be one and make that the cuboid container that volume is known is that configuration certain concentration gas uses with organic glass; Be provided with temperature sensing device, humidity sensing device in the air chest, can monitor the temperature inside the box, humidity in real time; Also have gas injection, stirring, exhaust apparatus, reflect, simulate, control gas sensor environmental aspect on every side more really; The heating arrangement of evaporator during as tracer liquid steam, making liquid evaporation is gas.
Data acquisition module is inserted in the idle PCI slot of adapted processor; Fixing intact, Test Host is placed on the smooth worktable of firmly being convenient to operate, connect Test Host data port and processor data acquisition module data port with subsidiary at random communication cable; The Test Host power supply is inserted in the satisfactory supply socket; Open the power switch on the panel, panel shows gas sensor heating voltage and loop voltage, regulates the correspondent voltage adjusting knob and obtains the test voltage condition; According to container volume; Dispose the gas of certain concentration on request, in test panel, select feeler switch to begin test, handle the data that test obtains; Through regulating knob and the on & off switch on the test board control panel; Gas in test loop WV, heating circuit WV and the air chest is regulated, and data acquisition module is accepted the analog voltage signal that gas information is converted in the perception environment, wherein the analog voltage signal humiture voltage signal that to be the gas sensor voltage signal that is converted of the environmental information of gas sensor perception transform with temperature, humidity sensor.Signal conversion circuit; Be used for analog voltage signal is carried out signal transformation; Output demodulation and filtered voltage signal; The analog voltage signal that the perception environmental information is converted is for instability and be doped with some unwanted signal ripples, so will separate mediation filtering to resulting analog voltage signal through signal conversion circuit, obtains testing needed voltage signal; The A/D analog to digital conversion circuit; Be used for converting demodulation and filtered voltage signal into digital signal; Be input to and analyze in the processor and calculate, processor can not be handled simulating signal, so will design an A/D analog to digital conversion circuit; With analog signal conversion is the digital signal that processor can be discerned, and then it is analyzed and calculates; In said digital signal input processor, carry out reacting value calculating, sensitivity calculations, response time calculating, element stepping and calculating release time, thereby obtain the test parameter of said gas sensor.Embedded software in the processor machine comes out information exhibition with the interface form, realizes various operations through windows system; The test parameter of gas sensor is shown on the interface with literal, the dynamic computer man-machine interacting of figure.
According to above-mentioned content, the gas sensor that the utility model can be used for detecting comprises but is not limited to detect semiconductor type, galvanochemistry class, infrared type of gas sensor, can design single batch of test quantity by software and hardware configuration.
The gas sensor that the utility model embodiment can be used for detecting includes but not limited to detect semiconductor type, galvanochemistry class, infrared type of gas sensor, can design single batch of test quantity by software and hardware configuration.
Present embodiment can combine computer-aided test gas sensor parameter; Changing troublesome operation and computing into computing machine carries out intellectuality and handles; Improve the exploitation and the production efficiency of gas sensor, also made simultaneously manpower and the reduction of material resources cost in test process.
See also accompanying drawing 2, be the concrete picture group of the disclosed gas sensor parameter test system of the utility model; Wherein, data conversion module (202) comprising: signal conversion circuit (205) is used for said analog voltage signal is carried out signal transformation output demodulation and filtered voltage signal; A/D analog to digital conversion circuit (206) is used for converting said demodulation and filtered voltage signal into digital signal.Processor module (203) comprising: reacting value computing module (207) is used to calculate the numerical value that reaction is obtained; Sensitivity calculations module (208) is used to calculate gas sensor sensitivity; Response time computing module (209) is used to calculate the gas sensor response time; Element stepping module (210) is used for according to the parameter of setting the demonstration of classifying of a batch test gas sensor; Computing module release time (211) is used to calculate gas sensor release time.
This system is based on the test to gas sensor parameter of software and hardware in one; See also accompanying drawing 3; Be the concrete picture group in the production of the disclosed a kind of gas sensor parameter test system of the utility model, hardware designs comprises: Test Host hardware (301) (power supply, air distributing device (304), mixing arrangement (305), vaporising device (306), temperature sensing device (307), humidity sensing device (308)), A/D change-over circuit (302), PC (303).Software design comprises: family curve computing machine display module, family curve enlarged and displayed module, gas sensor reacting value computing module, gas sensor sensitivity calculations module, response time computing module, element stepping module, release time, computing module, test result were preserved print module.
The air chest inner sensor socket of Test Host (301) inserts the gas sensor test board of setting; Air chest is sealed; Charge into test gas; Opening power; Import the data-signal cable of analog voltage signal through special use of test into data conversion module (302), convert the voltage signal of simulating into digital signal, by telecommunication cable digital signal is input in CPU (313), storer (314) and the input-output device (315) of processor (303) through I/O mouth (312) again through signal conversion circuit (310) and analog to digital conversion circuit (311); Analyze, calculate and store at processor embedded software and special-purpose display module, and the parameter testing result is exported through input-output device.
The test macro basic function comprises the multiple parameter of the gas sensor of required detection in experiment and the production run, as: the resistance in the aerial resistance of gas sensor, the appearance gas atmosphere, output voltage values, sensitivity, response time, release time etc.Simultaneously, software through the operation of mouse to button, gets final product the family curve of display element with the virtual gas sensor of button.
When producing gas sensor in batches, will carry out category filter to every batch of element, this system can classify to sensor according to sorting condition, scope that the user sets, and classification results shows with the various colors image, and is very directly perceived.The user can preserve, print the data that obtain, and data available software handles, and generates various abundanter material of picture and text.
In sum: this area of computer aided gas sensor parameter test system, can improve accuracy, the convenience of gas sensor parameter testing, the staff is freed from loaded down with trivial details data test, analysis, calculating.This system is through producing and actual uses of R&D institution, the usability of its function, and reliability and stability have all obtained sufficient sure, have promotional value widely.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. a gas sensor parameter test system is characterized in that, comprising:
Test Host is used to simulate the working environment of gas sensor, the analog voltage signal that gas information is converted in the output perception environment;
Link to each other with said Test Host, be used for said analog voltage signal is carried out analog to digital conversion, said analog voltage signal is converted into the data conversion module of digital signal;
Said data conversion module links to each other, and is used to install supporting testing software, said digital signal is analyzed and is calculated, with the processor of the test parameter that obtains said gas sensor.
2. system according to claim 1; It is characterized in that the analog voltage signal of the said Test Host output of this system is the gas sensor voltage signal and humiture voltage signal warm, that humidity sensor transforms that gas information is converted in the said gas sensor perception environment.
3. system according to claim 1 is characterized in that, said data conversion module comprises:
Link to each other with said Test Host, be used for said analog voltage signal is carried out signal transformation, the signal conversion circuit of output demodulation and filtered voltage signal;
Link to each other with said processor with said signal conversion circuit respectively, be used for said demodulation and filtered voltage signal are converted into the A/D analog to digital conversion circuit of digital signal.
4. system according to claim 1 is characterized in that, this system also comprises:
Link to each other with said processor, be used for the test parameter of said gas sensor with literal, the dynamic test result display module that shows of figure.
5. system according to claim 1 is characterized in that said Test Host is furnished with special-purpose air chest, through the vacuum rubber sealing said air chest build-in test gas is isolated from the outside.
6. system according to claim 1 is characterized in that, is provided with in the said air chest:
Temperature, humidity sensing device are used for monitoring in real time temperature and the humidity in the said air chest;
Annotate exhaust, stirring apparatus, be used for real reaction, simulation and control gas sensor ambient condition on every side;
Vaporising device, the heating arrangement when being used for monitoring liquid steam makes liquid vapour evaporation becoming gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203802788U CN202421107U (en) | 2011-09-30 | 2011-09-30 | Parameter testing system for gas sensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203802788U CN202421107U (en) | 2011-09-30 | 2011-09-30 | Parameter testing system for gas sensitive element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421107U true CN202421107U (en) | 2012-09-05 |
Family
ID=46745860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203802788U Expired - Lifetime CN202421107U (en) | 2011-09-30 | 2011-09-30 | Parameter testing system for gas sensitive element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421107U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507650A (en) * | 2011-09-30 | 2012-06-20 | 郑州炜盛电子科技有限公司 | Method and system for testing parameters of gas-sensitive element |
| CN105021777A (en) * | 2015-07-31 | 2015-11-04 | 湖北大学 | Multifunctional gas sensor testing system |
| 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 |
-
2011
- 2011-09-30 CN CN2011203802788U patent/CN202421107U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507650A (en) * | 2011-09-30 | 2012-06-20 | 郑州炜盛电子科技有限公司 | Method and system for testing parameters of gas-sensitive element |
| CN105021777A (en) * | 2015-07-31 | 2015-11-04 | 湖北大学 | Multifunctional gas sensor testing system |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102507650A (en) | Method and system for testing parameters of gas-sensitive element | |
| CN103592016B (en) | Electronic price computing scale software cheating detection device and method | |
| CN202421107U (en) | Parameter testing system for gas sensitive element | |
| CN108802060B (en) | Rapid nondestructive testing system and method for freshness of eggs | |
| CN113238003B (en) | Electronic nose system basic data set acquisition and verification platform | |
| CN200979419Y (en) | A multi-channel gas parameter measuring instrument | |
| CN203396775U (en) | Colloidal gold immunoassay analyzer | |
| CN206583547U (en) | A kind of wireless infant incubator self-checking device data collecting system | |
| CN202853916U (en) | Temperature sensor simulation apparatus | |
| CN207236771U (en) | A kind of infrared body temperature detector and infrared body temperature detecting system | |
| CN107918135B (en) | Water stress state monitoring method, device and electronic equipment | |
| CN102565878A (en) | High-precision movable environment data acquisition device | |
| CN204241442U (en) | Hyperchannel indoor gas parameter tester and indoor gas parameter test system | |
| US20130086999A1 (en) | Apparatus and method for testing usability | |
| CN106198295A (en) | Bird egg freshness portable detector based on weight-loss ratio and method thereof | |
| CN205451624U (en) | Gaseous experimental system based on computer -aided | |
| CN105403111B (en) | Non-maintaining guided missile static properties detection device | |
| CN112416233A (en) | Digital twin virtual space information interaction system | |
| CN207832672U (en) | A kind of portable comprehensive detector | |
| CN208207793U (en) | Usb interface test fixture | |
| CN207318027U (en) | A kind of electrical equipment sulfur hexafluoride leakage monitoring system | |
| CN207623311U (en) | A kind of quick concentration of formaldehyde tester structure | |
| CN207051430U (en) | A kind of hand-held semiconductor minority carrier lifetime tester | |
| CN206515347U (en) | A kind of original quantum dot immune chromatographic apparatus of fruits and vegetables farming analyte detection | |
| CN205749205U (en) | A kind of air quality detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |