CN102778909A - Method and device capable of realizing low-temperature and high-moisture requirement of incubator - Google Patents
Method and device capable of realizing low-temperature and high-moisture requirement of incubator Download PDFInfo
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- CN102778909A CN102778909A CN2012102378684A CN201210237868A CN102778909A CN 102778909 A CN102778909 A CN 102778909A CN 2012102378684 A CN2012102378684 A CN 2012102378684A CN 201210237868 A CN201210237868 A CN 201210237868A CN 102778909 A CN102778909 A CN 102778909A
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Abstract
The invention discloses a method and a device capable of realizing the low-temperature and high-moisture requirement of an incubator, which comprises an incubator (12), wherein the inside of the incubator (12) is provided with a sealed cuboid stainless-steel built-in activity room (1); the front side of the built-in activity room (1) is provided with a visible active window (20) made of organic glass for fetching and putting experiment samples; the bottoms of the built-in activity room (1) and a casing pipe heat exchanger (5) are provided with drain pipes (16); the built-in activity room (1) is connected with an air inlet pipe (6) and an air outlet pipe (4); and the air inlet pipe (6) and the air outlet pipe (4) carry out heat exchange via the casing pipe heat exchanger (5). The device disclosed by the invention has the advantages of simple structure, easiness in manufacturing and assembling and convenience in operation.
Description
Technical field
The present invention relates to ambient temperature and humidity control field, specifically, is a kind of method and apparatus that can realize the requirement of constant temperature oven low temperature and high relative humidity.
Background technology
In the prior art, most of climatic chambers can comparatively fast and preferably be controlled at the humidity in the climatic chamber under any relative humidity in 40 ℃ of-98 ℃ of scopes.When the temperature in the climatic chamber is set near 0 ℃; Most of climatic chambers will stop humidification automatically, and this is because evaporator temperature is lower at this moment, and water vapor frosting on evaporator coil is constantly arranged; If continuous again humidification; Evaporator coil very soon can be too thick and can't temperature control owing to frosting, and long-time running will cause compressor damage, need often to shut down defrosting experiment is interrupted; Therefore near 0 ℃ the time, be to be adjusted to very high humidity, the experiment that just can't meet the demands and under the experiment condition of low temperature and high relative humidity, carry out.
Summary of the invention
The object of the invention is to provide a kind of method and apparatus that can realize the requirement of constant temperature oven low temperature and high relative humidity, is used for reaching the purpose that makes existing climatic chamber when low temperature, can control higher levels of humidity.
The present invention realizes through following technical scheme:
A kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity; Comprise constant temperature oven (12); Place the built-in recreation room of airtight rectangular parallelepiped stainless steel (1) in the constant temperature oven (12), built-in recreation room (1) front is provided with the visual activity window (20) that the organic glass that is used to pick and place laboratory sample is processed, and built-in recreation room (1) bottom is provided with drainpipe (16); Built-in recreation room (1) is connected with draft tube (6), gas outlet (4); Draft tube (6) is connected with double-tube heat exchanger (5) respectively with gas outlet (4), and air-exchanging chamber (2) top is connected with water inlet pipe (9) and blowdown pipe (7), and air-exchanging chamber (2) bottom is equipped with well heater (8); Air-exchanging chamber (2) bottom is provided with rising pipe (10); Rising pipe (10) links to each other with water tank (3), and micro pump (11) is feedwater in the air-exchanging chamber (2), and water droplet is fallen in the air-exchanging chamber (2) after through humidification grid (25).
Further, the bottom of said built-in recreation room (1) is provided with a dividing plate (13), and laboratory sample is positioned over dividing plate (13) and goes up with the bottom interior surface of built-in recreation room (1) built on stilts.
Further, get in the built-in recreation room (1) after said draft tube (6) process double-tube heat exchanger (5) and gas outlet (4) heat exchange.
Further, liquid level controller (26) is housed in the said air-exchanging chamber (2), the control liquid level is no more than limiting altitude.
Further; The bottom of said air-exchanging chamber (2) is equipped with well heater (8); Be provided with second electronic moisture meter probe (22) in the air-exchanging chamber (2), second electronic moisture meter probe (22) shows the humidity data in the air-exchanging chamber (2) in real time through second electronic moisture meter (21).
Further, the blowdown pipe (7) of said air-exchanging chamber (2) is connected on the air inlet damping device (23), and surrounding air gets into air-exchanging chamber (2) after through damping device (23) humidification.
Further, be provided with RTD temperature-sensing probe (14) in the said built-in recreation room (1), said RTD temperature-sensing probe (14) links to each other with Fluke data collecting instrument (18), and goes up the feedback temperature data at computer (19) in real time.
Further, be provided with first electronic moisture meter probe (15) in the said built-in recreation room (1), first electronic moisture meter probe (15) shows the humidity data in the built-in recreation room (1) in real time through first electronic moisture meter (17).
Further, said double-tube heat exchanger (5), draft tube (6), rising pipe (10), drainpipe (16), blowdown pipe are all installed solenoid valve on (7).
Further; Said solenoid valve, micro pump (11), well heater (8) and level control instrument (26) are connected with controller (24), are sent the switching of each solenoid valve of signal controlling, micro pump (11), well heater (8) and level control instrument (26) again to controller (24) according to the humidity temperature variation by computer.
A kind of concrete measuring process of the device that can realize the requirement of constant temperature oven low temperature and high relative humidity is following:
(a) at first laboratory sample is placed on the dividing plate (13) in the built-in recreation room (1), closes the solenoid valve on visual activity window (20), the drainpipe (16), the solenoid valve on draft tube this moment (6) is in closed condition;
(b) close solenoid valve on the rising pipe (10) of air-exchanging chamber (2); Close blowdown pipe (7); The micro pump of opening in the water tank (3) (11) supplies water for air-exchanging chamber (2); When environment temperature was lower than the temperature of recreation room (1), the solenoid valve of opening well heater (8), draft tube (6) was that built-in recreation room (1) carries out humidification, observed humidity through first electronic moisture meter (17) and second electronic moisture meter (21) and changed;
(c) when relative humidity reaches requirement, open constant temperature oven (12) and lower the temperature, change through the humiture in RTD temperature-sensing probe (14) and the first electronic moisture meter probe built-in recreation room of (15) real-time monitored (1);
(d) along with the temperature in the built-in recreation room (1) descends; Water vapor in the built-in recreation room (1) can be at surface sweating along with under the wall flow; The humidity of constantly observing in the built-in recreation room (1) changes; When the condensate water in built-in recreation room (1) and the double-tube heat exchanger (5) is too much, carry out draining through the solenoid valve on the drainpipe (16).
(e) when air-exchanging chamber (2) liquid level reaches capacity height; Liquid level controller (26) will send electric signal; Open the solenoid valve of rising pipe (10) solenoid valve and blowdown pipe (7) through controller (24); Stop the work of micro pump (11), fresh air gets in the air-exchanging chamber (2) after through damping device (23) humidification;
(f) when water level drops to minimum liquid level; Liquid level controller (26) sends electric signal; Close rising pipe (10) solenoid valve and blowdown pipe (7) solenoid valve through controller (24); Open micro pump (11), with sending in the built-in recreation room (1) behind the further humidification of fresh air in the air-exchanging chamber (2).
The present invention has following advantage:
1, simple in structure, make assembling easily, easy to operate;
Under the situation about 2, can unpack in test, reduce constant temperature the temperature inside the box, moisture fluctuation;
3, remedied common climatic chamber can't be controlled higher levels of humidity when low temperature requirement;
4, can change through visual activity window observing samples;
But temperature, moisture fluctuation in the built-in recreation room of 5 real-time monitored.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation of measurement mechanism among the present invention.
Fig. 2 is an embodiment of the hot procedure for wet processing of air of the present invention.
Among the figure: 1. built-in recreation room; 2. air-exchanging chamber; 3. water tank; 4. gas outlet; 5. double-tube heat exchanger; 6. draft tube; 7. blowdown pipe; 8. well heater; 9. water inlet pipe; 10. rising pipe; 11. micro pump; 12. constant temperature oven; 13. dividing plate; 14. RTD temperature-sensing probe; 15. first electronic moisture meter probe; 16. drainpipe; 17. first electronic moisture meter; 18.Fluke data collecting instrument; 19. computer; 20. visual activity window; 21. second electronic moisture meter; 22. second electronic moisture meter probe; 23. damping device; 24. controller; 25. humidification grid; 26. liquid level controller.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
As shown in Figure 1, comprise constant temperature oven 12 among the figure, place the built-in recreation rooms 1 of airtight rectangular parallelepiped stainless steels in the constant temperature oven 12, built-in recreation room 1 front is provided with the visual activity window 20 that the organic glass that is used to pick and place laboratory sample processes and is used to pick and place laboratory sample.The bottom of built-in recreation room 1 is provided with a dividing plate 13, and laboratory sample is positioned on the dividing plate 13 built on stilts with the bottom interior surface of built-in recreation room 1, prevents that laboratory sample from contacting with the water that gets off that condenses.Gas outlet 4 is pipelines that are connected the UNICOM's atmosphere on the muffler 5, and valve is arranged above, closes the valve of muffler 5 near air-exchanging chamber 2 places, draft tube 6 air inlets, and the valve of opening on the gas outlet 4 just can be with the row of the gas in the recreation room 1 to atmospheric environment.
Built-in recreation room 1 bottom and double-tube heat exchanger 5 bottoms are provided with drainpipe 16, be used to get rid of in recreation room 1 with double-tube heat exchanger 5 in the water that condenses.Built-in recreation room 1 is connected with draft tube 6, gas outlet 4, and draft tube 6 is carried out heat interchange with gas outlet 4 through double-tube heat exchanger 5.Be provided with RTD temperature-sensing probe 14 in the built-in recreation room 1, said RTD temperature-sensing probe 14 links to each other with Fluke data collecting instrument 18, and feedback temperature data on computer 19 in real time.Be provided with first electronic moisture meter probe, 15, the first electronic moisture meters probe 15 in the built-in recreation room 1 through the humidity data in the built-in recreation room 1 of first electronic moisture meter 17 demonstration in real time.
Air-exchanging chamber 2 tops are connected with water inlet pipe 9, and the side is connected with blowdown pipe 7.Air-exchanging chamber 2 bottoms are provided with rising pipe 10, and rising pipe 10 links to each other with water tank 3, and liquid level controller 26 is installed in the air-exchanging chamber 2; When liquid level reaches capacity height, send electric signal to controller 24, the solenoid valve on the controller 24 control rising pipes 10 is opened; Close micro pump 11, to water tank 3 drainings, the solenoid valve fresh air that while controller 24 is opened on the blowdown pipe 7 gets into air-exchanging chambers 2 through air humidifying device 23; When the water level in the air-exchanging chamber 2 reaches lowest limit; Liquid level controller 26 sends electric signal to controller 24, closes the solenoid valve on rising pipe 11 and the blowdown pipe 7, starts water pump 11 simultaneously.
The bottom of said air-exchanging chamber 2 is equipped with well heater 8, when ambient temperature is lower than calorstat temperature, is used for the water of warming and aeration chamber 2, increases the air humidity in the air-exchanging chamber 2, carries out gas exchange with built-in recreation room 1 again.Be provided with second electronic moisture meter probe, 22, the second electronic moisture meters probe 22 in the air-exchanging chamber 2 through second electronic moisture meter, the 21 real-time humidity datas that show in the air-exchanging chamber 2.
As shown in Figure 2, under the Air-conditioning Engineering ultimate principle instructed, Fig. 2 was the hot procedure for wet processing of typical air:
A, etc. wet intensification B, intensification humidification C, isothermal humidification D, isothermal humidification
E, etc. wet cooling F, equal-enthalpy humidifying G, cooling dehumidification H, constant enthalpy dehumidification
When the temperature in the climatic chamber is set near 0 ℃, most of climatic chambers will stop humidification automatically, and this is because evaporator temperature is lower at this moment; Water vapor frosting on evaporator coil is constantly arranged; This process is exactly the process of arrow F among Fig. 2, if continuous humidification again, evaporator coil very soon can be too thick and can't temperature control owing to frosting; Long-time running will cause compressor damage, so will often shut down defrosting experiment interrupted.The effect of built-in recreation room 1 is exactly that the evaporator of the environment of high humidity and constant temperature oven is isolated, and makes the environment that reaches low temperature and high relative humidity in the built-in recreation room 1, does not influence the operate as normal of constant temperature oven.
The purposes of the well heater 8 in air-exchanging chamber 2 is exactly the intensification humidification of the arrow B among Fig. 2; Water is sent in the air-exchanging chamber 2 through micro pump 11; Give air-exchanging chamber interior air humidification through the humidification grid in the air-exchanging chamber 2 25; Constantly feedwater in air-exchanging chamber 2 of water pump 11, fresh soft air carries out being admitted in the built-in recreation room 1 after the heat interchange through double-tube heat exchanger 5 and gas outlet 4.
The water pump that is adopted is miniature water and gas dual-purpose pump-water and gas dual-purpose, small size, and low-noise water pump (WKA series):
Model: WKA600 inhales journey: 1 meter flow: 0.6L/Min lift: 3 meters
Principal feature has:
Can be high temperature resistant (100 degree); Volume extra small (also littler) than palm; Can dally for a long time, do commentaries on classics, have water to draw water, have gas to bleed;
Reliable self-priming (self-priming is up to 1 meter), flow little (0.6L/Min), noise is little;
Can 24 hours of continuous run; Long-term idle running belongs to operate as normal, can not damage pump; Be particularly suitable for gas the occasion of water is arranged;
Do not have oil, do not pollute actuating medium, non-maintaining, any direction is installed.
Purposes: extract water, gas mixed type medium, also or can directly draw water.
The method of operating step of caliberating device of the present invention is following:
(a) at first laboratory sample is placed on the dividing plate (13) in the built-in recreation room (1), closes the solenoid valve on visual activity window (20), the drainpipe (16), the solenoid valve on draft tube this moment (6) is in closed condition;
(b) close solenoid valve on the rising pipe (10) of air-exchanging chamber (2); Close draft tube (7); The micro pump of opening in the water tank (3) (11) supplies water for air-exchanging chamber (2); The solenoid valve of opening (when environment temperature is lower than the temperature of recreation room (1), opening well heater (8)) draft tube (6) is that built-in recreation room (1) carries out humidification, and first electronic moisture meter (17) and second electronic moisture meter (21) are observed humidity and changed;
(c) when relative humidity reaches requirement, open constant temperature oven (12) and lower the temperature, change through the humiture in RTD temperature-sensing probe (14) and the first electronic moisture meter probe built-in recreation room of (15) real-time monitored (1);
(d) along with the temperature in the built-in recreation room (1) descends, the water vapor in the built-in recreation room (1) can be at surface sweating along with under the wall flow, and the humidity of constantly observing in the built-in recreation room (1) changes.When the condensate water in built-in recreation room (1) and the double-tube heat exchanger (5) is too much, carry out draining through the solenoid valve on the drainpipe (16);
(e) reach capacity when height when air-exchanging chamber (2) liquid level, liquid level controller (26) will send electric signal, opens the solenoid valve of rising pipe (10) solenoid valve and draft tube (7) through controller (24), stops water pump (11) and works.Fresh air gets in the air-exchanging chamber (2) after through damping device (23) humidification;
(f) when water level drops to minimum liquid level; Liquid level controller (26) sends electric signal; Close rising pipe (10) solenoid valve and blowdown pipe (7) solenoid valve through controller (24); Open water pump (11), with in the air-exchanging chamber (2) think the further humidification of air after send in the built-in recreation room (1).
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (10)
1. the device that can realize the requirement of constant temperature oven low temperature and high relative humidity; It is characterized in that, comprise constant temperature oven (12), place the built-in recreation room of airtight rectangular parallelepiped stainless steel (1) in the constant temperature oven (12); Built-in recreation room (1) front is provided with the visual activity window (20) that the organic glass that is used to pick and place laboratory sample is processed; Built-in recreation room (1) bottom is provided with drainpipe (16), and built-in recreation room (1) is connected with draft tube (6), gas outlet (4), and draft tube (6) is connected with airtight organic glass container air-exchanging chamber (2) respectively with gas outlet (4); Air-exchanging chamber (2) top is connected with water inlet pipe (9) and blowdown pipe (7); Air-exchanging chamber (2) bottom is equipped with well heater (8), and air-exchanging chamber (2) bottom is provided with rising pipe (10), and rising pipe (10) links to each other with water tank (3); Micro pump (11) is feedwater in the air-exchanging chamber (2), and water droplet is fallen in the air-exchanging chamber (2) after through humidification grid (25).
2. a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1; It is characterized in that; The bottom of said built-in recreation room (1) is provided with a dividing plate (13), and laboratory sample is positioned over dividing plate (13) and goes up with the bottom interior surface of built-in recreation room (1) built on stilts.
3. a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1 is characterized in that, gets in the built-in recreation room (1) after said draft tube (6) process double-tube heat exchanger (5) and gas outlet (4) heat exchange.
4. a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1 is characterized in that, liquid level controller (26) is housed in the said air-exchanging chamber (2), and the control liquid level is no more than limiting altitude.
5. a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1; It is characterized in that; The bottom of said air-exchanging chamber (2) is equipped with well heater (8); Be provided with second electronic moisture meter probe (22) in the air-exchanging chamber (2), second electronic moisture meter probe (22) shows the humidity data in the air-exchanging chamber (2) in real time through second electronic moisture meter (21).
6. a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1; It is characterized in that; The blowdown pipe (7) of said air-exchanging chamber (2) is connected on the air inlet damping device (23), and surrounding air gets into air-exchanging chamber (2) after through damping device (23) humidification.
7. a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1; It is characterized in that; Be provided with RTD temperature-sensing probe (14) in the said built-in recreation room (1); Said RTD temperature-sensing probe (14) links to each other with Fluke data collecting instrument (18), and goes up the feedback temperature data at computer (19) in real time.
8. a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1; It is characterized in that; Be provided with first electronic moisture meter probe (15) in the said built-in recreation room (1), first electronic moisture meter probe (15) shows the humidity data in the built-in recreation room (1) in real time through first electronic moisture meter (17).
9. a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1; It is characterized in that; Said double-tube heat exchanger (5), draft tube (6), rising pipe (10), drainpipe (16), blowdown pipe are all installed solenoid valve on (7); Said solenoid valve, micro pump (11), well heater (8) and level control instrument (26) are connected with controller (24), are sent the switching of each solenoid valve of signal controlling, micro pump (11), well heater (8) and level control instrument (26) again to controller (24) according to the humidity temperature variation by computer.
10. the concrete measuring process of a kind of device that can realize the requirement of constant temperature oven low temperature and high relative humidity according to claim 1 is following:
(a) at first laboratory sample is placed on the dividing plate (13) in the built-in recreation room (1), closes the solenoid valve on visual activity window (20), the drainpipe (16), the solenoid valve on draft tube this moment (6) is in closed condition;
(b) close solenoid valve on the rising pipe (10) of air-exchanging chamber (2); Close blowdown pipe (7); The micro pump of opening in the water tank (3) (11) supplies water for air-exchanging chamber (2); When environment temperature was lower than the temperature of recreation room (1), the solenoid valve of opening well heater (8), draft tube (6) was that built-in recreation room (1) carries out humidification, observed humidity through first electronic moisture meter (17) and second electronic moisture meter (21) and changed;
(c) when relative humidity reaches requirement, open constant temperature oven (12) and lower the temperature, change through the humiture in RTD temperature-sensing probe (14) and the first electronic moisture meter probe built-in recreation room of (15) real-time monitored (1);
(d) along with the temperature in the built-in recreation room (1) descends; Water vapor in the built-in recreation room (1) can be at surface sweating along with under the wall flow; The humidity of constantly observing in the built-in recreation room (1) changes; When the condensate water in built-in recreation room (1) and the double-tube heat exchanger (5) is too much, carry out draining through the solenoid valve on the drainpipe (16);
(e) when air-exchanging chamber (2) liquid level reaches capacity height; Liquid level controller (26) will send electric signal; Open the solenoid valve of rising pipe (10) solenoid valve and blowdown pipe (7) through controller (24); Stop the work of micro pump (11), fresh air gets in the air-exchanging chamber (2) after through damping device (23) humidification;
(f) when water level drops to minimum liquid level; Liquid level controller (26) sends electric signal; Close rising pipe (10) solenoid valve and blowdown pipe (7) solenoid valve through controller (24); Open micro pump (11), with sending in the built-in recreation room (1) behind the further humidification of fresh air in the air-exchanging chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237868.4A CN102778909B (en) | 2012-07-10 | 2012-07-10 | Method and device capable of realizing low-temperature and high-moisture requirement of incubator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237868.4A CN102778909B (en) | 2012-07-10 | 2012-07-10 | Method and device capable of realizing low-temperature and high-moisture requirement of incubator |
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| Publication Number | Publication Date |
|---|---|
| CN102778909A true CN102778909A (en) | 2012-11-14 |
| CN102778909B CN102778909B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210237868.4A Expired - Fee Related CN102778909B (en) | 2012-07-10 | 2012-07-10 | Method and device capable of realizing low-temperature and high-moisture requirement of incubator |
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| CN105527219A (en) * | 2016-01-26 | 2016-04-27 | 广东美的暖通设备有限公司 | Moisture-proof testing device |
| CN105698971A (en) * | 2016-03-11 | 2016-06-22 | 西华大学 | Automatic test system and test method for vehicle temperature sensor |
| CN106094948A (en) * | 2016-07-27 | 2016-11-09 | 上海海洋大学 | The temperature and humidity control device of a kind of low temperature humidity chamber and method |
| CN112229094A (en) * | 2020-09-27 | 2021-01-15 | 华中科技大学 | Constant temperature air circulation system |
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| JP2009002587A (en) * | 2007-06-22 | 2009-01-08 | Panasonic Corp | Refrigerator |
| CN201348741Y (en) * | 2009-01-23 | 2009-11-18 | 华南师范大学 | Automatic humidity controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105527219A (en) * | 2016-01-26 | 2016-04-27 | 广东美的暖通设备有限公司 | Moisture-proof testing device |
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| CN105698971A (en) * | 2016-03-11 | 2016-06-22 | 西华大学 | Automatic test system and test method for vehicle temperature sensor |
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| CN112229094A (en) * | 2020-09-27 | 2021-01-15 | 华中科技大学 | Constant temperature air circulation system |
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| Publication number | Publication date |
|---|---|
| CN102778909B (en) | 2014-07-16 |
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