CN106404839A - An intelligent gas-sensitive analytical device used for an indirectly heated gas sensor - Google Patents
An intelligent gas-sensitive analytical device used for an indirectly heated gas sensor Download PDFInfo
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- CN106404839A CN106404839A CN201610685798.7A CN201610685798A CN106404839A CN 106404839 A CN106404839 A CN 106404839A CN 201610685798 A CN201610685798 A CN 201610685798A CN 106404839 A CN106404839 A CN 106404839A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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Abstract
The invention relates to a self-adaptive intelligent gas-sensitive analytical device used for a resistance, voltage and current type indirectly heated gas sensor. The device includes a main control unit (1), a test base (2), a gas hood (3), an environment humidity control unit (4) and a host computer software unit (5). A resistance measuring module (11), a voltage measuring module (12) and a current measuring module (13) are integrated in measurement. The modules can be started separately, and can be started in order by a feedback determination module (10) and rapidly shifted, and then an optimum measurement mode of the sensor is automatically determined or determined by manual operation.
Description
Technical field
The invention belongs to biosensor analysis device field, it is directed to resistance, voltage, current mode heater-type gas particularly to a kind of
The self-adapting intelligent analytical equipment of body sensor.System can cover the testing requirement of currently all heater-type gas sensors,
And have that measurement range is big, measurement continuously need not be shifted gears, support the features such as multiple distribution modes, ambient temperature and humidity are controlled.
Background technology
With the development of modern industrial technology, gaseous species and quantity for productive life are on the increase, meanwhile,
All kinds of toxic and harmfuls of discharge also increase sharply so that the threat of health and safety that people face also gets more and more, because
This develops high performance gas sensor has great importance.Gas sensor be divided into semiconductor transducer, infrared sensor,
Electrochemical sensor etc. is multiple, and wherein semiconductor transducer has the advantages that small volume, install convenient, with low cost, therefore exists
Commercial market application is extremely extensive, and annual market sales volume reaches millions of.Accordingly for semiconductor transducer research and development and
Measurement also obtains and greatly pays close attention to.
Semiconductor transducer can be divided into heater-type sensor, directly-heated type sensor two class from device architecture, and heater-type passes
Sensor stability is high, uniformity is good, so occupying the leading position in market.Heater-type sensor refers to heater strip and signal electricity
The structure of electric isolation between pole, typical device fabrication processes are：Sensitive material is coated on the earthenware of hollow, pottery
Pipe two ends make two ring electrodes, passes through earthenware using Ni-Cr heater strip, by controlling the electric current of Ni-Cr heater strip
To control the operating temperature of sensitive material so that working sensor is under certain operating temperature, to obtain big sensitivity, fast
Response resume speed and the parameter such as good selectivity and stability.
According to the sensitive material using and electrode design, and the difference of targeted intended application occasion, heater-type biography
Sensor can be with output resistance (as ZnO, SnO2), voltage (as YSZ) or electric current be (as WO3、In2O3) signal.For different defeated
Go out mode, need to build different measuring apparatus.And some the new sensitive materials developed in recent years, such as organic semiconductor
(as phthalocyanine), conjugated polymer (as conducting polymer), new carbon (as CNT, Graphene) etc., can input many
Plant signal, lead to the measurement process of respective sensor very loaded down with trivial details, transfer to another after often measurement finishes on certain equipment again
In a set of equipment, and different air-sensitive analytical instrument air chamber structures, the gas concentration uniformity, the temperature control degree of accuracy are all extremely difficult to unite
One, measurement result cannot lateral comparison, lead to be difficult to judge that using which kind of output signal be optimized.
Meanwhile, existing air-sensitive analytical equipment generally existing air chamber humiture is uncontrollable, measurement range is narrow, need artificial gearshift
Etc. drawback it is difficult to adapt to each new sensitive material, the research and development of new construction sensor and testing requirement.
Content of the invention
For the problems referred to above, the invention provides a kind of be directed to heater-type sensor, be capable of sensor measurement pattern
The fully-automatic intelligent analytical equipment of automatic decision.
Main advantages of the present invention are to be integrated with resistance, three kinds of measurement patterns of voltage and current, and each pattern can be activated individually,
Also can be opened successively by feedback and judge module and be switched fast, then the optimum measurement mould of automatic discrimination or manual confirmation sensor
Formula；Measuring circuit automatically adjusts sample resistance according to feedback signal value, surveys on a large scale thus can achieve without manual shift
Amount；In air chamber, integrated multiple sensor sockets, static air distribution system can be analyzed multiple sensors simultaneously, and provide easily gas
Body dilution and liquid evaporation distribution mode；Air chamber can connect dynamic gas mixer, is capable of high-precision applied environment simulation；
Environment temperature and ambient humidity can intelligent control, be capable of the simulation of sensor actual working environment.Additionally, intellectual analysis dress
Put and be configured with corresponding upper computer software unit, be able to record that measurement data and be directly converted into the different sensitivity of corresponding modes
Representation (is represented by Rg, Rg/Ra, Ra/Rg, | Ra-Rg |/Ra etc. as resistive type), and can automatic decision sensor
Response time and recovery time, automatically store test condition.
The intellectual analysis apparatus structure frame diagram of heater-type gas sensor of the present invention as described in Figure 1, its feature
It is：Intellectual analysis device include main control unit (1), testing base (2), gas hood (3), ambient humidity control unit (4), on
Position machine software unit (5).
Feedback and judge module (10), resistance measuring module (11), electricity is comprised inside main control unit (1) of the present invention
Pressure measurement module (12), current measurement module (13), heated current control module (14), total control module (15), environment temperature
Control module (16), ambient humidity control module (17), communication management module (18), power module (19).Wherein, power module
(19) it is used for converting input voltage into the operating voltage needed for modules, it opens and closes by the power switch of front panel
(105) control.
The internal resistance measuring module (11) comprising of main control unit (1) of the present invention, voltage measurement module (12)
It is made up of multigroup sample resistance with current measurement module (13), a point effect for resistance, partial pressure or shunting can be played, and pass through respectively
Respective microcontroller (resistive module microcontroller, voltage module microcontroller, current module microcontroller) carry out judge and
Select.Feedback and judge module (10) can automatically turn on resistance, three measurement modules of voltage and current and is switched fast, measurement
All data are all uploaded in master control (15) module, and signal is carried out analog-to-digital conversion by total control module (15), and by logical
Letter management module (18) is uploaded to upper computer software unit (5) and enters line sensitivity and the analysis of response recovery characteristics.Numerical analysis
Automatic mode or manual mode can be selected by upper computer software unit (5), if selecting automatic mode, system can be according to being passed through
The result of variations of the resistance, voltage and the electric current that cause before and after object gas, it is unique for automatically determining the most significant data of change
Test result；If selection manual mode, can according to the change curve manually determined measurement pattern of three kinds of measurement patterns simultaneously
Retain result.For easy to operate, automatic (101), resistance (102), voltage are provided with the front panel of main control unit (1)
(103) and (104) four controlling switches of electric current, connect feedback and judge module (10) respectively, resistance measuring module (11), voltage are surveyed
Amount module (12) and current measurement module (13).For the sensor element of known type, suitable measurement mould can be directly selected
Block, the sensor element to UNKNOWN TYPE, also can start feedback and judge module (10) in automatic mode and first determine suitable survey
Then amount module manually directly selects this measurement module to continue test again on main control unit (1) front panel.
It is provided with 8 sensor sockets (21), liquid evaporator (22), fan inside testing base (2) of the present invention
(23), Temperature Humidity Sensor (24), illumination (25), dynamic air-distributing passage (26).The front panel of testing base is provided with touch control
Screen (27), fan control switch (28) and bull switch (29).Measuring circuit, measurement is connected inside sensor socket (21)
Circuit and resistance measuring module (11), voltage measurement module (12), current measurement module (13) and heated current control module
(14) connect such that it is able to realize multiple measurement patterns.Is also connected with heater circuit inside sensor socket (21), heater circuit by
Heated current control module (14) controls, and the operating temperature of sensor is passed through to adjust heated current control.Touch control screen (27)
Internal connection total control module (15), through the process of communication management module (18), can control heated current control module
(14), environment temperature control module (16), ambient humidity control module (17).The operation interface of touch control screen (27) sets
There is heated current (271) that the heated current of each sensor can be set, environment temperature (272) can arrange the environment of working sensor
Temperature, ambient humidity (273) can arrange the ambient humidity of working sensor, and evaporating temperature (274) can arrange its indoor liquid and steam
Send out the operating temperature of device (22), electric current system sets (275) and can unify to arrange the heated current of each sensor, and safety shutdown (276) can
Carry out pre- shutdown.Dynamic air-distributing passage (26) in testing base (2) finally uses conduit to draw from base rear board, can be used for connecing
Enter dynamic air-distributing device.
Gas hood (3) volume of the present invention is 20L, and inner materials are stainless steel, and stainless surrounding is covered with uniform
Insulation heater strip (31), outside heat-insulated using insulating materials (32), environment temperature control module (16) is by being evenly distributed on gas
The heater strip (31) of cover (3) and the bulk temperature of Temperature Humidity Sensor (24) regulation air chamber, that is, when realizing working sensor
The simulation of environment temperature.Gas hood (3) can be by overturning the air chamber that rotating shaft (37) is opened or closed with testing base (2) composition.?
In the air chamber of closing, dynamic air-distributing and static distribution, wherein dynamic air-distributing can be carried out after connecting dynamic air-distributing device, directly will
The background gas having configured and object gas injection air chamber.Static distribution can be divided into gas dilution and liquid evaporation distribution two
Kind, gas dilution distribution can be injected by the liquid injection hole (34) of the injecting hole (33) of the upper end of gas hood (3) or lower end and (specifically be regarded gas
Molal weight depending on) air chamber；Liquid evaporation distribution then syringe or the microsyringe injection of the liquid injection hole (34) from lower end
Liquid evaporator (22), the evaporating temperature (274) in the operable touch control screen of the evaporating temperature (27) of liquid evaporator (22)
Setting.Fan (23) air-distributing aid can be opened during static distribution, open illumination (25) auxiliary observation.It is provided with gas hood (3) top
Device observation window (35) is used for observing the working condition of sensor, is provided with liquid with the upper end of liquid evaporator (22) correspondence position
Gaseous volatilization situation when observation window (36) is used for observing liquid distribution.
Ambient humidity control unit (4) of the present invention is mainly by dry gas (41) and its regulating valve (43), saturation
Humidity gas (42) and its regulating valve (44) and humidity mixing chamber (45) are constituted, internal system connect humidity control module (17) with
Touch control screen (27), the outside humidity mixing chamber (45) that passes through directly accesses air chamber from gas tank base (2).Ring can be passed through during operation
Border humidity (273) sets button settings environmental wet angle value, and humidity control module (17) can be according to the Temperature Humidity Sensor in air chamber
(24) value of the humidity feeding back automatically adjusts ambient humidity, with the accurate ambient humidity controlling in air chamber.
The information that upper computer software unit (5) of the present invention can provide according to communication management module (18), enters line number
According to process, and resistance (voltage or electric current)-time graph is drawn out on software interface, in software, is integrated with corresponding computing,
Each pattern different sensitivity type can be directly realized by (as resistor-type is represented by Rg/ with the optimal measurement pattern of automatic screening
Ra, Ra/Rg, | Ra-Rg |/Ra etc.) conversion, response-recovery time to different target gas for the calculating device, and record test
Environment temperature, ambient humidity, the parameter such as device operating temperature.
System Working Principle is：First pass through environment temperature control module (16) and ambient humidity control module (17) will pass
The test environment of sensor is adjusted to the application scenario of required simulation；Sensor is linked in sensor socket (21), by adding
Thermoelectricity flow control module (14) adjusts the operating current of sensor, and then the operating temperature of control sensitive material, eventually finds
The best operating condition of sensor；Select measurement pattern, if opening automatic mode switch (101), feedback and judge module (10) meeting
Opening resistor measurement module (11), voltage measurement module (12) and current measurement module (13) be switched fast, by upper successively
Position machine software unit (5) may be selected to automatically determine optimum measurement pattern, or manually selects so that three kinds of surveys of comparative analysis
Amount pattern；If resistance mode controlling switch (102), voltage mode controlling switch (103) or testing current pattern are activated individually
Controlling switch (104), system then only starts selected measurement module, only records the figure data of single measurement pattern collection；
The signal of sensor enters total control module (15), the data signal input communication management module after process by measurement module
(18), and be uploaded to upper computer software unit (5), the signal collecting can be converted into inhomogeneity by upper computer software unit (5)
The sensitivity of type, calculates response time and recovery time, stores test condition simultaneously.
Brief description
Fig. 1：Intellectual analysis device overall structure diagram of the present invention；
Fig. 2：Testing base top view of the present invention；
Fig. 3：Testing base front-panel structure schematic diagram of the present invention；
Fig. 4：Air chamber structure schematic diagram of the present invention；
Fig. 5：Ambient humidity control unit structural representation of the present invention；
Fig. 6：Main control unit structured flowchart of the present invention；
Fig. 7：Heated current of the present invention and the calibration curve of temperature；
Fig. 8：The typical consequence of resistor-type gas sensor of the present invention；
Fig. 9：The typical consequence of voltage-type gas sensor of the present invention；
Figure 10：The typical consequence of amperometric sensors of the present invention；
Figure 11：The typical consequence of the obtained resistor-type gas sensor of automatic mode measurement of the present invention.
Specific embodiment
As shown in figure 1, each several part is entitled：Main control unit (1), testing base (2), gas hood (3), ambient humidity control
Unit (4), upper computer software unit (5).Automatic (101), resistance (102), voltage are had on the control panel of main control unit
(103), the controlling switch of the control button of electric current (104) this 4 measurement patterns and power supply (105).
As shown in Fig. 2 being provided with multiple sensor sockets (21), liquid evaporator (22), fan inside testing base (2)
(23), Temperature Humidity Sensor (24), illumination (25), dynamic gas distribution channels (26).
As shown in figure 3, the front panel of testing base (2) includes touch control screen (27), control opens fan pass (28) and shines
Bright controlling switch (29), wherein, touch control screen (27) is provided with electric current (271), environment temperature (272), ambient humidity
(273), evaporating temperature (274), electric current system set the buttons such as (275), safety shutdown (276).
As shown in figure 4, gas hood (3) cavity wall interlayer is uniformly covered with heater strip (31), outer wrap insulated heat material (32),
Air chamber wall is provided with injecting hole (33) and liquid injection hole (34), device observation window (35) and liquid observation window (36), and gas hood one end is pacified
Fill turning rotating shaft (37).Wherein injecting hole can all use quartz glass with rubber cushion and screw (38) sealing, observation window.
As shown in figure 5, ambient humidity control unit (4) is mainly wet by dry gas (41) and its regulating valve (43), saturation
Degree gas (42) and its regulating valve (44) are constituted and humidity mixing chamber (45) composition, and moisture can directly be led to by humidity mixing chamber (45)
Air inlet chamber.
As shown in fig. 6, main control unit each several part is entitled：Feedback and judge module (10), resistance measuring module (11), electricity
Pressure measurement module (12), current measurement module (13), heated current control module (14), total control module (15), environment temperature
Control module (16), ambient humidity control module (17), communication management module (18), power module (19).
As shown in fig. 7, the heated current of heater-type gas sensor provided by the present invention and temperature have certain corresponding
Relation, 180mA is corresponding to be 300 DEG C, then often adjusts 20mA, about 40 DEG C of temperature raising and lowering up and down.
With reference to above-mentioned accompanying drawing, the specific embodiment of the present invention is described further：From PHILIPS
LPC214x ARM7 microprocessor is as total control module (15)；Beijing Ai Lite Science and Technology Ltd. R121 chipset is resistance
Measurement module (11) master chip, Beijing Ai Lite Science and Technology Ltd. V212 chipset be voltage measurement module (12) master chip,
Beijing Ai Lite Science and Technology Ltd. I120 chipset is current measurement module (13) master chip, and Matsushita Electric G310 chipset is
Power module (19) master chip, draws PCB, and each chip is soldered to electricity with sample resistance and other related devices
Road plate；
By C51 language coding, realize：The automatic decision-making function of feedback and judge module (10)；Resistance measuring module
(11), the measurement function of voltage measurement module (12) and current measurement module (13)；The direct current of heated current control module (14)
Output and regulatory function；The process that total control module (15) instructs to touch control screen (27)；Environment temperature control module (16)
Regulatory function with ambient humidity control module (17)；The software and hardware docking of communication management module (18)；Power module (19)
Power management；
By C51 language coding, realize docking of total control module (15) and touch control screen (27), realize touching
Touch control flow (27) upper setting environment temperature, ambient humidity, heated current, liquid evaporation temperature.
By VC language coding, realize upper computer software unit (5) to the sensitivity of the sensor, response time, extensive
The analytic function of multiple time.
Embodiment 1
The present embodiment uses the known resistive type MQ135 type heater-type gas sensing of Beijing Tian Sheng Science and Technology Ltd.
Device is test device, and to provide above-mentioned air-sensitive analytical equipment for the concrete grammar of analysis device, its step is as follows：
1st, connect the circuit of intellectual analysis device, device is inserted directly into sensor socket (21), then covers gas hood
(3) to constitute the air chamber of closing.
2nd, set condition of work：It is 300 DEG C in the upper environment temperature (272) that arranges of touch control screen (27), ambient humidity
(273) it is 30%RH, simulate the temperature and humidity of certain chemical plant outlet port.Then the heated current of sensor of interest is set
(271) it is 180mA.
3rd, use dynamic gas mixer distribution：Connect dynamic gas mixer, be passed through pure air as background gas.
4th, select test pattern：MQ135 is known resistor-type gas sensor, has two kinds of measurement patterns optional, can be excellent
First select resistance measurement pattern, open controlling switch (102)；Also automatic measurement pattern can be opened, open controlling switch
(101).
5th, open upper computer software unit (5), if selecting resistance measurement pattern, system only starts resistance measuring module
(11), upper computer software unit also only will provide the figure data of the change of resistance；If selecting automatic measurement pattern, system
Will opening resistor, three measurement patterns of voltage and current be switched fast successively, upper computer software unit is also by synchronous recording electricity
Resistance, the figure data of the change of voltage and current.
6th, after the resistance value stabilization of device, it is passed through the object gas ammonia of 100ppm, the resistance value treating device is in target
After stablizing in the atmosphere of gas, stop being passed through object gas, be passed through background gas again, treat resistance in background gas for the device
After value is stablized again, the test stopping test or carrying out next round can be selected.After test terminates, then can directly data be deposited
Store up as txt or xls form.Fig. 8 is the gas-sensitive property figure of the typical resistor-type gas sensor drawn according to test result.
Embodiment 2
The present embodiment using the voltage-type heater-type gas sensor YSZ300 of Beijing Yi Xunfangda Science and Technology Ltd. is
Test device, provides the concrete method of testing of voltage-type device.Specific implementation step is as different from Example 1：
1st, optional test pattern is changed to automatic or two kinds of voltage.
2nd, environmental condition is set to 600 DEG C, and humidity can be set to 30%RH.
3rd, background gas are N2, test gas is NO, and concentration is 100ppm.
4th, Fig. 9 is the typical test results of voltage-type gas sensor, and explanation equipment have successfully been obtained voltage sensor
Characteristic.
Embodiment 3
It is test that the present embodiment uses the current mode heater-type gas sensor WO101 of Beijing Ai Lite Science and Technology Ltd.
Device, provides the concrete method of testing of current mode device.Specific implementation step is as different from Example 1：
1st, optional test pattern is changed to automatic or two kinds of electric current.
2nd, environmental condition is set to 30 DEG C, and humidity can be set to 30%RH.
3rd, test gas is H2S, concentration is 100ppm.
4th, Figure 10 is the typical test results of amperometric sensors, and explanation equipment have successfully been obtained amperometric sensor
Characteristic.
Embodiment 4
It is test that the present embodiment uses the resistor-type heater-type gas sensor RG003 of Beijing Ai Lite Science and Technology Ltd.
Device, by the characteristic of automatic mode measurement sensor, to provide above-mentioned air-sensitive analytical equipment for the concrete side of analysis device
Method.Specific implementation step is as different from Example 1：
1st, optional test pattern is changed to automatically.
2nd, environmental condition is set to 100 DEG C, and humidity can be set to 30%RH.
3rd, test gas is NO2, concentration is 10ppb.
4th, Figure 11 is the typical consequence contrast of the gas sensor of automatic mode of the present invention.It can be seen that system is certainly
Dynamic selection resistance mode is analyzed, and eliminates voltage and current pattern, obtains correct test result.
Claims (10)
1. a kind of intelligent air-sensitive analytical equipment for heater-type gas sensor, including main control unit (1), testing base
(2), gas hood (3), ambient humidity control unit (4) and upper computer software unit (5) are it is characterised in that main control unit (1) collects
Resistance, three kinds of measurement patterns of voltage and current are become, each pattern can be activated individually, and also can be opened successively by feedback and judge module (10)
Open and be switched fast, then the optimum measurement pattern of automatic discrimination or manual confirmation sensor；Testing base (2) and gas hood (3)
Constitute closed air chamber, testing base is internally provided with：Multiple sensor sockets (21), liquid evaporator (22), fan (23), temperature
Humidity sensor (24), illumination (25) and dynamic air-distributing passage (26)；Gas hood (3) is upper to be distributed injecting hole (33) and liquid injection hole
(34), Support gas dilution and liquid evaporation distribution；Environment temperature controls by the environment temperature control module of main control unit (1)
(16) feedback information according to Temperature Humidity Sensor (24) adjusts insulation heater strip (31) the temperature reality being evenly distributed on gas hood (3)
Existing；Ambient humidity control by ambient humidity control module (17) according to the Temperature Humidity Sensor (24) in air chamber feed back wet
Dry gas (41) and its regulating valve (43), saturated humidity gas in degree information adjust automatically ambient humidity control unit (4)
(42) and its regulating valve (44) realize；Upper computer software unit (5) record data, graphing, analysis numerical value, preservation measurement bar
Part.
2. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 1 it is characterised in that：Main
Feedback and judge module (10), resistance measuring module (11), voltage measurement module (12), electric current survey is comprised inside control unit (1)
Amount module (13), heated current control module (14), total control module (15), environment temperature control module (16), ambient humidity
Control module (17), communication management module (18) and power module (19)；The front panel of main control unit (1) is provided with automatically
(101), resistance (102), voltage (103) and (104) four controlling switches of electric current, connect feedback and judge module (10), electricity respectively
Resistance measurement module (11), voltage measurement module (12) and current measurement module (13), the outside realizing measurement module directly controls.
3. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 1 is it is characterised in that electricity
Resistance measurement module (11), voltage measurement module (12) and current measurement module (13) are made up of multigroup sample resistance, can play point
The effect of resistance, partial pressure or shunting, and judged by respective microcontroller respectively and select.
4. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 3 it is characterised in that：Instead
After feedback determination module (10) is opened, all data all can be uploaded on total control module (15) for each measurement module, master control molding
Signal is carried out analog-to-digital conversion by block (15), and is uploaded to upper computer software unit (5) by communication management module (18) and carries out spirit
Sensitivity and the analysis of response recovery characteristics, select automatic mode or manual mode to carry out numerical value by upper computer software unit (5)
Analysis, if select automatic mode system can be tied according to the change of resistance, voltage and the electric current causing before and after being passed through object gas
Really, final determination changes the most significant data is unique test result；If selection manual mode, can be surveyed according to three kinds
The change curve manually determined measurement pattern of amount pattern simultaneously retains result.
5. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 1 it is characterised in that：Survey
Measuring circuit, measuring circuit and resistance measuring module is connected inside multiple sensor sockets (21) of setting inside examination base (2)
(11), voltage measurement module (12), current measurement module (13) connect, thus having multiple measurement patterns；Inside is also connected with adding
Heater circuit, heater circuit is controlled by heated current control module (14), adjusts the work of sensor by adjusting heated current
Temperature.
6. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 1 it is characterised in that：Survey
It is provided with touch control screen (27), touch control screen (27) is controlled through communication management module (18) on the front panel of examination base (2)
Heated current control module (14) processed, environment temperature control module (16), ambient humidity control module (17), by touching control
In the operation interface of system screen (27), setting heated current (271) adjusts the operating current of each senser element, and setting electric current system sets
(275) the unified operating current setting all devices, setting environment temperature (272) and ambient humidity (273) analog sensed device
Real working environment, setting evaporating temperature (274) provides the operating temperature of liquid evaporator (22).
7. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 1 it is characterised in that：Gas
Cover (3) passes through to overturn the air chamber that rotating shaft (37) is opened or closed with testing base (2) composition, is provided with one in the lower end of gas hood (3)
Individual liquid injection hole (34) is used for injecting liquid and carries out distribution, and liquid injection hole (34) is relative with liquid evaporator (22), with syringe or micro-
Amount injector can inject liquid into liquid evaporator and carry out distribution；Dynamic air-distributing passage (26) in testing base (2) is last
Drawn from base rear board with conduit, can be used for accessing dynamic air-distributing device, realize dynamic air-distributing.
8. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 1 and 2, its feature exists
In：Ambient humidity control unit (4) includes by dry gas (41) and its regulating valve (43), saturated humidity gas (42) and its adjusts
Section valve (44) and humidity mixing chamber (45), connect humidity control module (17) and touch control screen (27) inside device, outside logical
Cross humidity mixing chamber (45) and be directly connected to air chamber, button settings environmental wet angle value, humidity control module are set by ambient humidity
(17) value of the humidity that can be fed back according to the Temperature Humidity Sensor (24) in air chamber automatically adjusts ambient humidity, is controlled with accurate
Humidity in air chamber processed.
9. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 1 and 2, its feature exists
In：The information that upper computer software unit (5) provides according to communication management module (18), carries out data processing, and in software interface
On draw out real-time resistance, voltage or curent change curve, can be with the optimal measurement pattern of automatic screening.
10. the intelligent air-sensitive analytical equipment for heater-type gas sensor according to claim 1 or 7, its feature exists
In：Plenum roof is provided with device observation window (35) for observing the working condition of sensor, and the upper end of liquid injection hole (34) is provided with liquid
Body observation window (36), corresponding with liquid evaporator (22) position, for observing liquid injection air chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610685798.7A CN106404839A (en) | 2016-08-19 | 2016-08-19 | An intelligent gas-sensitive analytical device used for an indirectly heated gas sensor |
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| CN201610685798.7A CN106404839A (en) | 2016-08-19 | 2016-08-19 | An intelligent gas-sensitive analytical device used for an indirectly heated gas sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164218A (en) * | 2018-11-12 | 2019-01-08 | 罕王微电子（辽宁）有限公司 | A kind of intelligence sensor |
| CN113310604A (en) * | 2021-04-23 | 2021-08-27 | 青岛东方船研深海装备结构技术有限公司 | Stress sensor installation auxiliary system and device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140252A (en) * | 2006-09-06 | 2008-03-12 | 中国科学院半导体研究所 | System for testing gas sensors or semiconductor device performance |
| CN202502086U (en) * | 2012-04-10 | 2012-10-24 | 无锡隆盛科技股份有限公司 | Detection system of nitrogen oxide sensor |
| CN103760200A (en) * | 2014-01-20 | 2014-04-30 | 吉林大学 | Ion-type gas-sensitive material analysis device |
| CN104155416A (en) * | 2014-08-21 | 2014-11-19 | 黑龙江大学 | Humidity-controllable static gas-sensitive test device and method |
| CN105388187A (en) * | 2015-11-13 | 2016-03-09 | 大连民族大学 | Measuring method of humidity-controllable semiconductor gas sensitive element |
| CN105651936A (en) * | 2014-11-12 | 2016-06-08 | 长沙理工大学 | Gas sensor comprehensive tester and measurement method thereof |
| CN105866331A (en) * | 2016-03-28 | 2016-08-17 | 宁波大学 | Gas sensor test system for dynamic and static gas distribution dual purposes |
-
2016
- 2016-08-19 CN CN201610685798.7A patent/CN106404839A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140252A (en) * | 2006-09-06 | 2008-03-12 | 中国科学院半导体研究所 | System for testing gas sensors or semiconductor device performance |
| CN202502086U (en) * | 2012-04-10 | 2012-10-24 | 无锡隆盛科技股份有限公司 | Detection system of nitrogen oxide sensor |
| CN103760200A (en) * | 2014-01-20 | 2014-04-30 | 吉林大学 | Ion-type gas-sensitive material analysis device |
| CN104155416A (en) * | 2014-08-21 | 2014-11-19 | 黑龙江大学 | Humidity-controllable static gas-sensitive test device and method |
| CN105651936A (en) * | 2014-11-12 | 2016-06-08 | 长沙理工大学 | Gas sensor comprehensive tester and measurement method thereof |
| CN105388187A (en) * | 2015-11-13 | 2016-03-09 | 大连民族大学 | Measuring method of humidity-controllable semiconductor gas sensitive element |
| CN105866331A (en) * | 2016-03-28 | 2016-08-17 | 宁波大学 | Gas sensor test system for dynamic and static gas distribution dual purposes |
Non-Patent Citations (2)
| Title |
|---|
| 沙春哲等: "气体传感器长期稳定性智能检测***", 《电子测量技术》 * |
| 王磊等: "基于气体传感器阵列的动态检测***", 《传感器与微***》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164218A (en) * | 2018-11-12 | 2019-01-08 | 罕王微电子（辽宁）有限公司 | A kind of intelligence sensor |
| CN113310604A (en) * | 2021-04-23 | 2021-08-27 | 青岛东方船研深海装备结构技术有限公司 | Stress sensor installation auxiliary system and device |
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