CN113063829A - Flexible film humidity sensor detection system - Google Patents
Flexible film humidity sensor detection system Download PDFInfo
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- CN113063829A CN113063829A CN202110389501.3A CN202110389501A CN113063829A CN 113063829 A CN113063829 A CN 113063829A CN 202110389501 A CN202110389501 A CN 202110389501A CN 113063829 A CN113063829 A CN 113063829A
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- 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
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
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Abstract
The invention relates to the technical field of sensor detection systems, in particular to a flexible film humidity sensor detection system which comprises a body, a control system, an air supply system and a test template.
Description
Technical Field
The invention relates to the technical field of sensor detection systems, in particular to a flexible film humidity sensor detection system.
Background
The flexible thin film humidity sensor is a humidity sensor which is made by printing a resistance type nanometer functionalized humidity sensitive composite material or other humidity sensitive materials with similar functions on a flexible light and thin material, wherein the resistance type nanometer functionalized humidity sensitive composite material or other humidity sensitive materials with similar functions have strong adhesive force, bending resistance and high sensitivity, are thin like paper, have good flexibility and ductility, even can be freely bent and folded, have flexible and various structural forms, can be randomly arranged according to the requirements of measurement conditions, and can be used for conveniently measuring complex measured objects.
When the humidity sensor is used, the humidity sensor is attached to the surface of a measured object, when the humidity sensor senses external humidity, the resistance value of the sensor changes, a signal conversion circuit is adopted to convert humidity signals generated after the sensor senses the change into electric signals with corresponding change intensity to be output, performance parameters of the corresponding sensor can be obtained by analyzing the electric signals, and the working humidity range of the flexible film humidity sensor is generally-30-150 ℃. The sensor is commonly used in human-computer interaction equipment, intelligent robots, electronic medical appliances, wearable equipment and physiological health detection equipment, and along with the rapid development of intelligent clothing and medical care industry in recent years, the demand on the flexible film humidity sensor is more and more.
Conventional flexible film humidity sensors are small in size, typically between several millimeters and several tens of millimeters, and are manufactured in mass production by a full-page printing process similar to a printed circuit board, where the full-page size is typically a standard size, such as 300 × 400mm2 or 400 × 500mm2, and several tens or nearly hundreds of humidity sensors are designed on each page. At present, when the performance of a humidity sensor is detected, each sensor is heated and measured manually to obtain sensor parameters, when the number of the sensors is large, only a sampling mode can be adopted to select partial sensors for testing so as to judge the performance of the whole sensor, the measurement efficiency is low, and the measurement precision and the consistency are poor. In order to meet the customization requirement, the shape structures and interface specifications of sensors in different application fields are greatly different, and when an automatic detection system is designed, the measurement means needs to be simplified as much as possible, so that the detection requirements of most products are met as much as possible.
Disclosure of Invention
In view of the above situation, and in order to overcome the defects of the prior art, the present invention provides a flexible film humidity sensor detection system, which can meet the requirements of full-page batch detection and automatic production for fast conversion of sensors with different specifications.
The technical purpose of the invention is realized by the following technical scheme:
a flexible film humidity sensor detection system comprises a body, a control system, an air supply system and a test template;
the body comprises a base, the upper surface of the base is of a plane structure, the top of the base is provided with an upper cover, the interior of the upper cover is of a cavity structure, a cavity temperature sensor and a cavity humidity sensor are fixedly mounted in a cavity area of the upper cover, air guide holes penetrating through the upper cover from top to bottom are formed in the upper cover, the air guide holes are formed in the inner sides of the cavity temperature sensor and the cavity humidity sensor, and two groups of air guide holes are formed, wherein one group of air guide holes is used for air inlet, and the other group of air guide holes is used for air outlet;
the testing template is arranged in a cavity structure between the upper cover and the base and comprises a double-layer flexible film layer, the flexible film layer comprises a first flexible film layer and a second flexible film layer, the first flexible film layer is arranged at the bottom of the second flexible film layer and is made of a full-page flexible film material, the second flexible film layer is made of a flexible film material with holes, conductive contacts are arranged at the holes of the second flexible film layer, leads extend from the rear ends of the conductive contacts, the tail ends of the conductive contacts are connected with a wiring row, through holes are formed in the surfaces of the first flexible film layer and the second flexible film layer from top to bottom, and the through holes are formed in two sides of the leads;
the body is connected with an air supply system;
the control system is connected with the body.
Furthermore, flexible film humidity sensors are uniformly distributed on the flexible film layer and comprise sensor probes and connectors, the connectors are fixedly connected to the bottom sides of the sensor probes, the sensor probes are made of humidity sensitive materials, and the connectors are correspondingly connected with the conductive electric shock contacts.
Furthermore, the gas supply system comprises a gas mixing chamber, a steam generator, a dry gas cylinder and an electric proportional valve, the gas mixing chamber is connected with the gas guide hole in the body, the gas mixing chamber is connected with the steam generator and the dry gas cylinder, and the electric proportional valve is respectively arranged between connecting pipelines of the gas mixing chamber and the steam generator as well as between connecting pipelines of the gas mixing chamber and the dry gas cylinder so as to adjust the gas flow of the steam generator and the dry gas cylinder entering the gas mixing chamber.
Furthermore, a pressing block is fixedly installed at the rear end of the body and is pressed on the tail end of the test template.
Further, install the vacuum pump on the body, the surperficial equipartition of base has the absorption hole, the through-hole one-to-one on absorption hole and the test template, the pipeline of vacuum pump is installed in the position department of absorption hole and through-hole.
In conclusion, the invention has the following beneficial effects:
the detection system meets the requirement of full-page batch detection, can once only carry out performance detection to the humidity sensor on the full-page flexible film, and the air supply system who sets up can control the humidity of applying on flexible film humidity sensor through the time of control air feed according to test humidity input steam or air conditioning, and control system reads the humidity signal, can judge the sensor performance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, and are not to be considered limiting of the invention, in which:
FIG. 1 is a schematic view of a flexible film moisture sensor testing system according to the present invention;
FIG. 2 is a schematic diagram of the structure of the testing system of the present invention;
FIG. 3 is a schematic representation of a briquette according to the present invention;
FIG. 4 is a schematic diagram of a sensor configuration according to the present invention;
FIG. 5 is a schematic view of an imposition flexible film humidity sensor in accordance with the present invention;
FIG. 6 is a schematic diagram of the structure of a test template according to the present invention;
FIG. 7 is a schematic cross-sectional view of a test template of the present invention.
In the figure, 100, a control system; 200. a gas mixing chamber; 201. a steam generator; 202. drying the gas cylinder; 203. an electric proportional valve; 300. a body; 301. a base; 302. an upper cover; 303. a chamber temperature sensor; 304. an air vent; 305. briquetting; 306. a chamber temperature sensor; 400. a flexible thin film humidity sensor; 401. a sensor probe; 402. a joint; 500. testing the template; 501. a first flexible film layer; 502. a second flexible film layer; 503. a through hole; 504. a line bank; 505. a wire; 506. a conductive contact; 600. a vacuum pump.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 7. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Example 1: as shown in fig. 1 to 7, a detection system of a flexible film humidity sensor 400 includes a body 300, a control system 100, an air supply system, and a test template 500, wherein the control system 100 is connected to the body 300 for providing electrical control thereto.
The test template 500 is arranged in a cavity structure between the upper cover 302 and the base 301, the test template 500 comprises a double-layer flexible film layer, the flexible film layer comprises a first flexible film layer 501 and a second flexible film layer 502, the first flexible film layer 501 is arranged at the bottom of the second flexible film layer 502, the first flexible film layer 501 is made of a full-page flexible film material, the second flexible film layer 502 is made of a flexible film material with holes, a lead 505 and a conductive contact 506 are arranged in the middle of the two layers of film materials, the hole of the second flexible film layer 502 is provided with the conductive contact 506, the rear end of the conductive contact 506 extends to form a lead 505, the conductive tail end is connected with a wiring row 504, the surfaces of the first flexible film layer 501 and the second flexible film layer 502 are provided with through holes 503 from top to bottom, and the through holes 503 are.
The flexible thin film humidity sensors 400 are uniformly distributed on the flexible thin film layer, each flexible thin film humidity sensor 400 comprises a sensor probe 401 and a connector 402, each connector 402 is fixedly connected to the bottom side of the corresponding sensor probe 401, each sensor probe 401 is made of a humidity sensitive material, and each connector 402 is correspondingly connected with the corresponding conductive contact.
The air supply system comprises a gas mixing chamber 200, a steam generator 201, a drying gas cylinder 202 and an electric proportional valve 203, wherein the gas mixing chamber 200 is connected with an air guide hole 304 on a body 300, the gas mixing chamber 200 is connected with the steam generator 201 and the drying gas cylinder 202, the electric proportional valve 203 is respectively arranged between connecting pipelines of the gas mixing chamber 200 and the steam generator 201 as well as between connecting pipelines of the gas mixing chamber 200 and the drying gas cylinder 202, when the test humidity is set, the control system 100 controls the air flow of the steam generator 201 and the drying gas cylinder 202 into the gas mixing chamber 200 by controlling the electric proportional valve 203, cold air and hot air with different proportions are mixed in the gas mixing chamber 200, and finally the humidity value of circulating air entering the body 300 is changed.
The rear end of the body 300 is fixedly provided with a pressing block 305, the pressing block 305 is pressed on the tail end of the test template 500 and used for pressing the wiring bar 504 at the tail of the test template 500 during testing, so that the signal acquisition interface of the control system 100 is in close contact with the wiring bar 504 at the tail of the test template 500. During testing, the test template 500 is placed on the upper surface of the base 301.
The vacuum pump 600 is installed on the body 300, the adsorption holes are uniformly distributed on the surface of the base 301 and correspond to the through holes 503 on the test template 500 one by one, and the pipeline of the vacuum pump 600 is installed at the positions of the adsorption holes and the through holes 503 and used for adsorbing and fixing the full-page flexible film humidity sensor 400 when the full-page sensor is placed on the test template 500.
In the embodiment of the invention, during testing, the full-page flexible film humidity sensor 400 is placed on the base 301, and the alignment of the position of the test template 500 when the test template 500 is lowered is facilitated through manual alignment, after the test template 500 and the upper cover 302 are lowered, the control system 100 controls the air supply proportional valves on the steam generator 201 and the dry air bottle 202 to supply air to the air mixing chamber 200, the steam and the dry air generate gas with a certain humidity value in the air mixing chamber 200, then the gas enters the cavity inside the upper cover 302 through the air duct and contacts with the humidity sensor probe 401 through the hole on the test template 500, the control system 100 obtains the temperature and the humidity value of the air in the cavity of the upper cover 302 by reading the temperature and the humidity sensor inside the upper cover 302 in real time, simultaneously records the output signal of the sensor, after the signal acquisition is completed, the upper cover 302 is lifted, the full-page flexible film humidity sensor 400 is manually taken out, completing the test of the full-page sensor; the control system 100 simultaneously opens the exhaust valve of the air mixing chamber 200 and the dry air cylinder 202 to exhaust the moisture in the cavity of the upper cover 302 by using the dry air, and prepare for the next test.
After the test is finished, the upper cover 302 is lifted, the vacuum pump 600 is released, the whole flexible film humidity sensor 400 is taken out, if sensors of different types and models need to be tested, the pressing block 305 located at the rear part of the body 300 is lifted, the test template 500 is taken out, a new template is replaced, and then the pressing block 305 is lowered to be pressed.
It should be noted that the testing system of the flexible film humidity sensor 400 according to the present invention can be automatically controlled by the control system 100, for example, the lifting and lowering of the pressure block 305 are controlled, the electric proportional valve 203 is controlled to control the steam generator 201 and the dry gas cylinder 202 to supply gas to the gas mixing chamber 200, and the data acquisition system acquires data, as will be understood by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (5)
1. The utility model provides a flexible film humidity sensor detecting system, includes body (300), control system (100), air supply system, test template (500), its characterized in that: the body (300) comprises a base (301), the upper surface of the base (301) is of a plane structure, an upper cover (302) is arranged at the top of the base (301), the inside of the upper cover (302) is of a cavity structure, a cavity temperature sensor (303) and a cavity humidity sensor (306) are fixedly mounted in a cavity area of the upper cover (302), air guide holes (304) penetrating through the upper cover (302) from top to bottom are formed in the upper cover (302), the air guide holes (304) are formed in the inner sides of the cavity temperature sensor (303) and the cavity humidity sensor (306), two groups of air guide holes (304) are formed, one group is used for air inlet, and the other group is used for air outlet; the testing template (500) is arranged in a cavity structure between the upper cover (302) and the base (301), the testing template (500) comprises a double-layer flexible film layer, the flexible film layer comprises a first flexible film layer (501) and a second flexible film layer (502), the first flexible film layer (501) is arranged at the bottom of the second flexible film layer (502), the first flexible film layer (501) is made of a full-page flexible film material, the second flexible film layer (502) is made of a flexible film material provided with holes, a conductive contact (506) is arranged at the hole opening position of the second flexible film layer (502), a lead (505) extends from the rear end of the conductive contact (506), the conductive tail end is connected with a wiring row (504), and through holes (503) from top to bottom are formed in the surfaces of the first flexible film layer (501) and the second flexible film layer (502), the through holes (503) are arranged on two sides of the lead (505); the body (300) is connected with an air supply system;
the control system (100) is connected with the body (300).
2. The flexible film humidity sensor detection system of claim 1, wherein: the flexible film humidity sensor is characterized in that flexible film humidity sensors (400) are uniformly distributed on the flexible film layer, each flexible film humidity sensor (400) comprises a sensor probe (401) and a connector (402), each connector (402) is fixedly connected to the bottom side of the corresponding sensor probe (401), each sensor probe (401) is made of a humidity sensitive material, and each connector (402) is correspondingly connected with the corresponding conductive electric contact.
3. The flexible film humidity sensor detection system of claim 2, wherein: the gas supply system comprises a gas mixing chamber (200), a steam generator (201), a drying gas cylinder (202) and an electric proportional valve (203), wherein the gas mixing chamber (200) is connected with a gas guide hole (304) in the body (300), the gas mixing chamber (200) is connected with the steam generator (201) and the drying gas cylinder (202), and the electric proportional valve (203) is respectively installed between connecting pipelines of the gas mixing chamber (200) and the steam generator (201), the gas mixing chamber (200) and the drying gas cylinder (202) so as to adjust the gas amount of the steam generator (201) and the drying gas cylinder (202) entering the gas mixing chamber (200).
4. A flexible film humidity sensor sensing system according to claim 3 wherein: the rear end of the body (300) is fixedly provided with a pressing block (305), and the pressing block (305) is pressed on the tail end of the test template (500).
5. The flexible film humidity sensor detection system of claim 4, wherein: install vacuum pump (600) on body (300), the surperficial equipartition of base (301) has the adsorption hole, through-hole (503) one-to-one on adsorption hole and test template (500), the pipeline of vacuum pump (600) is installed in the position department of adsorption hole and through-hole (503).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389501.3A CN113063829A (en) | 2021-04-12 | 2021-04-12 | Flexible film humidity sensor detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389501.3A CN113063829A (en) | 2021-04-12 | 2021-04-12 | Flexible film humidity sensor detection system |
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| CN113063829A true CN113063829A (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110389501.3A Pending CN113063829A (en) | 2021-04-12 | 2021-04-12 | Flexible film humidity sensor detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929412A (en) * | 2020-07-30 | 2020-11-13 | 信义汽车玻璃(深圳)有限公司 | Automobile humidity detection device and detection method |
| CN113916947A (en) * | 2021-10-18 | 2022-01-11 | 江苏创芯海微科技有限公司 | Humidity information identification system and method based on flexible humidity sensor array |
-
2021
- 2021-04-12 CN CN202110389501.3A patent/CN113063829A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929412A (en) * | 2020-07-30 | 2020-11-13 | 信义汽车玻璃(深圳)有限公司 | Automobile humidity detection device and detection method |
| CN113916947A (en) * | 2021-10-18 | 2022-01-11 | 江苏创芯海微科技有限公司 | Humidity information identification system and method based on flexible humidity sensor array |
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