CN113359894A - Humidifying method of environmental test chamber - Google Patents
Humidifying method of environmental test chamber Download PDFInfo
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- CN113359894A CN113359894A CN202110684514.3A CN202110684514A CN113359894A CN 113359894 A CN113359894 A CN 113359894A CN 202110684514 A CN202110684514 A CN 202110684514A CN 113359894 A CN113359894 A CN 113359894A
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- G05D22/02—Control of humidity characterised by the use of electric means
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Abstract
The invention relates to the technical field of humidification, and discloses a humidification method for an environmental test chamber, which comprises the following steps: s1, setting the temperature and the humidity of the environmental test box as set temperatures and humidity as set humidity, adjusting the environmental test box to the set temperatures by the refrigerating system, setting the difference value between the set heat carrying refrigerating capacity when equipment in the environmental test box works and the initial set refrigerating capacity when the equipment does not work as set refrigerating capacity deviation, and enabling the control module to correspond to the water temperature and the air volume according to the set refrigerating capacity deviation; s2, adjusting the water temperature in the water tank and the air volume of the fan to corresponding values in S1; and S3, changing the opening degree of at least one of the air path proportion regulating valve and the water path proportion regulating valve which are respectively communicated with the atomizing nozzle until the humidity in the environmental test chamber reaches the set humidity. The humidification method disclosed by the invention solves the problems of mutual confrontation of refrigeration and humidification and out-of-control temperature and humidity in the environmental test chamber caused by adopting a steam humidification mode, and simultaneously realizes the purpose of saving energy consumption.
Description
Technical Field
The invention relates to the technical field of humidification, in particular to a humidification method of an environmental test chamber.
Background
With the increasing progress of life and science and technology, the requirement on the reliability of products is higher and higher. In many fields, especially in the fields of electronic products and automotive products, it is necessary to test the operational reliability of the products under high temperature and high humidity conditions. A large amount of heat is generated during the operation of the product and is released to an environmental test chamber, which requires a large amount of cooling in order to maintain a constant temperature and humidity. As the refrigerating capacity increases, the dehumidifying capacity also increases, so that the phenomena of large refrigerating output and difficult humidification can occur when the high-temperature and high-humidity performance of the product is tested under the condition of larger heating value. In order to increase the humidity in the environmental test case, prior art adopts steam to carry out the humidification mostly, because steam gets into in the environmental test case, make the heat in the environmental test case increase, consequently, the cold load of environmental test case increases, the refrigerating output increases, and then it is bigger to lead to the dehumidification volume, need bigger humidification volume this moment, thereby produce the phenomenon of refrigeration and the mutual antagonism of humidification, lead to the temperature and humidity out of control in the environmental test case, and the energy consumption is also great moreover.
Disclosure of Invention
Based on the above, the invention aims to provide a humidification method for an environmental test chamber, which solves the problems of mutual opposition of refrigeration and humidification and uncontrolled temperature in the environmental test chamber caused by adopting a steam humidification mode, and simultaneously achieves the purpose of saving energy consumption.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of humidifying an environmental test chamber, comprising:
s1, setting the temperature and the humidity of an environment test box to be set temperatures and set humidity, adjusting the environment test box to the set temperatures by a refrigerating system, setting the difference value between the set heat-carrying refrigerating capacity of equipment in the environment test box during working and the initial set refrigerating capacity of the equipment during non-working as a set refrigerating capacity deviation, and enabling a control module to correspond to the water temperature for humidification and the air volume of a fan in the environment test box according to the set refrigerating capacity deviation;
s2, adjusting the water temperature in the water tank and the air volume of the fan to corresponding values in S1;
and S3, changing the opening degree of at least one of an air path proportion adjusting valve and a water path proportion adjusting valve which are respectively communicated with the atomizing nozzle until the humidity in the environmental test chamber reaches the set humidity, wherein the water path proportion adjusting valve is communicated with the water tank.
As a preferable embodiment of the humidification method for the environmental test chamber, S3 includes:
and S31, opening of the air path proportion adjusting valve is increased until the humidity in the environmental test chamber reaches the set humidity.
As a preferable embodiment of the humidification method for the environmental test chamber, S3 further includes:
s32, if the humidity in the environmental test chamber is still smaller than the set humidity when the opening of the air path proportion adjusting valve is maximum, opening the air path proportion adjusting valve to the maximum and increasing the opening of the water path proportion adjusting valve until the humidity in the environmental test chamber reaches the set humidity.
As a preferable example of the humidification method for the environmental test chamber, in S3, the initial opening degree of the water passage ratio adjustment valve is set to a first opening degree.
As a preferable example of the humidification method for the environmental test chamber, in S3, the initial opening degree of the gas path ratio adjustment valve is set to the second opening degree.
As a preferable embodiment of the humidification method for the environmental test chamber, before S1, the method further includes: s01, the temperature of the environment test box is adjusted to a preset temperature by the refrigerating system, and the difference value between the heat-carrying preset refrigerating capacity when a heating element simulating the operation of equipment in the environment test box heats and the initial preset refrigerating capacity when the heating element does not heat is the preset refrigerating capacity deviation;
s02, changing the water temperature in the water tank and the air volume of the fan until the humidity of the environmental test chamber reaches a preset humidity, wherein the refrigerating capacity of the refrigerating system is the actual refrigerating capacity;
s03, repeating S02 for multiple times to obtain multiple actual refrigerating capacities, wherein each actual refrigerating capacity corresponds to one water temperature and one air volume;
s04, comparing the actual refrigerating capacities, and taking the water temperature and the air quantity corresponding to the minimum actual refrigerating capacity as the water temperature and the air quantity corresponding to the preset refrigerating capacity deviation;
s05, if the preset temperature is changed, returning to S01 to obtain a database of water temperature and air volume of different preset temperatures under different preset refrigerating capacity deviations; if the preset humidity is changed, returning to the step S02, and obtaining a database of water temperature and air volume of different preset humidities under different preset refrigerating capacity deviations; if the preset temperature and the preset humidity are changed at the same time, returning to the step S01, replacing the preset temperature in the step S01 with a new preset temperature, and replacing the preset humidity in the step S02 with a new preset humidity, so as to obtain a database of water temperature and air volume of different preset temperatures and different preset humidities under different preset refrigerating capacity deviations.
As a preferable scheme of the humidification method of the environmental test chamber, the control module in S1 matches the water temperature and the air volume corresponding to the deviation of the set cooling capacity according to the database in S05.
As a preferable scheme of the humidification method for the environmental test chamber, in S01, the preset cooling capacity deviation to the preset temperature at the same water temperature is within a preset cooling capacity deviation interval, and the preset cooling capacity deviation decreases as the water temperature increases.
As a preferable scheme of the humidification method for the environmental test chamber, in S05, the preset cooling capacity deviation reaching the preset temperature under the same air volume is located within a preset cooling capacity deviation interval, and the preset cooling capacity deviation decreases as the air volume increases.
The invention has the beneficial effects that: the humidifying method of the environmental test chamber disclosed by the invention can obtain corresponding water temperature and air quantity according to the set refrigerating capacity deviation, so that the temperature in the environmental test chamber reaches the set temperature, further, the humidity in the environmental test chamber reaches the set humidity by adjusting at least one of the air path proportion adjusting valve and the water path proportion adjusting valve, and finally, the temperature and the humidity of the environmental test chamber are adjusted, the adjusting precision is high, the water consumption and the energy consumption are lower.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a flow chart of a method for humidifying an environmental test chamber according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a humidifying device based on an environmental test chamber according to an embodiment of the present invention.
In the figure:
11. a water tank; 12. a waterway proportion regulating valve; 13. a heating member; 14. a temperature sensor; 15. a water way switch valve; 16. a water replenishing piece;
21. a filter member; 22. a gas path proportion regulating valve; 23. a pressure limiting piece; 24. an air path switch valve;
3. an atomizing nozzle;
4. a fan;
5. an evaporator.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present embodiment provides a method for humidifying an environmental test chamber, as shown in fig. 1, including:
s1, setting the temperature and the humidity of the environmental test chamber to be set temperatures and humidity to be set humidity, adjusting the environmental test chamber to be set temperatures by the refrigerating system, setting the difference value between the set heat-carrying refrigerating capacity of equipment in the environmental test chamber during working and the initial set refrigerating capacity of the equipment during non-working as set refrigerating capacity deviation, and enabling the control module to correspond to the water temperature for humidification and the air volume of the fan 4 in the environmental test chamber according to the set refrigerating capacity deviation;
s2, adjusting the water temperature in the water tank 11 (shown in figure 2) and the air quantity of the fan 4 (shown in figure 2) to the corresponding values in S1;
and S3, changing the opening degree of at least one of the air path proportion adjusting valve 22 (shown in figure 2) and the water path proportion adjusting valve 12 (shown in figure 2) which are respectively communicated with the atomizing nozzle 3 (shown in figure 2) until the humidity in the environmental test chamber reaches the set humidity, wherein the water path proportion adjusting valve 12 is communicated with the water tank 11.
The humidifying method of the environmental test chamber provided by the embodiment can obtain the corresponding water temperature and air quantity according to the set refrigerating capacity deviation, so that the temperature in the environmental test chamber reaches the set temperature, and then by adjusting at least one of the gas path proportional control valve 22 and the water path proportional control valve 12, the humidity in the environmental test chamber reaches the set humidity, the temperature and the humidity of the environmental test chamber are finally adjusted, the adjustment precision is high, the water consumption and the energy consumption are low, in addition, the humidification is carried out by adopting the water mist sprayed by the atomizing nozzle 3, the water mist can absorb heat in the environmental test chamber and is evaporated into water vapor, thereby increasing the humidity in the environmental test chamber, avoiding the problem of mutual confrontation of refrigeration and humidification, because the water mist absorbs part of heat in the environment test box, the refrigerating capacity is reduced, and the purpose of saving energy consumption is realized.
It should be noted that the humidification method of the environmental test chamber of this embodiment is operated based on a humidification apparatus of the environmental test chamber, as shown in fig. 2, the humidification apparatus includes a water path component, a gas path component, an atomizing nozzle 3 and a water supplement component 16, the water path component includes a water tank 11, a water path proportional control valve 12 and a water path switch valve 15, the water path switch valve 15 is located between the water tank 11 and the water path proportional control valve 12 to control the connection or disconnection between the water tank 11 and the water path proportional control valve 12, the water tank 11 is provided with a heating component 13 and a temperature sensor 14, the heating component 13 is used for heating water in the water tank 11, the temperature sensor 14 is used for detecting the temperature of water in the water tank 11, the water path proportional control valve 12 is used for adjusting the outflow rate of water in the water tank 11, the gas path component includes a filter 21, a gas path proportional control valve 22, a pressure limiting component 23 and a gas path switch valve 24, filter piece 21 and be used for filtering gaseous, gas circuit proportion control valve 22 is used for adjusting gaseous outflow speed, this pressure limiting piece 23 is the relief valve, pressure limiting piece 23 is used for limiting gaseous highest pressure, in order to prevent that the too high effect that plays the protection pipeline and prevent unexpected emergence of pressure of the gas circuit subassembly in, gas circuit switch valve 24 is located the upper reaches of filtering piece 21, in order to control the intercommunication or the disconnection of gas circuit subassembly, atomizing nozzle 3 communicates with the end of water circuit subassembly and the end of gas circuit subassembly respectively, in order to spout into the water smoke in the environmental test case, moisturizing piece 16 can be to automatic water supply in the water tank 11, moisturizing piece 16 is configured as the liquid level in the water tank 11 and is less than when predetermineeing the liquid level to make-up water in the water tank 11.
As shown in fig. 2, a fan 4 is arranged in the environmental test chamber, the fan 4 is arranged right opposite to the evaporator 5 of the refrigeration system, and the fan 4 can realize air circulation in the environmental test chamber.
Further, the waterway proportional control valve 12 and the airway proportional control valve 22 are both electric proportional control valves, and the electric proportional control valves can realize accurate adjustment of the opening degree thereof, so as to realize continuous change of the flow rate of water and the flow rate of gas. The outflow rate of water in the water tank 11 can be adjusted by changing the opening degree of the water passage ratio adjusting valve 12, and the outflow rate of gas can be adjusted by changing the opening degree of the gas passage ratio adjusting valve 22.
Specifically, the control module of this embodiment is the controller, and this controller is connected with water route proportional control valve 12, temperature sensor 14, the humidity transducer electricity that is used for detecting humidity in gas circuit proportional control valve 22 and the environmental test case respectively, and control module can be an solitary singlechip, also can be that the polylith singlechip that distributes constitutes, can the control program of operation in the singlechip, and then control water route proportional control valve 12, temperature sensor 14, gas circuit proportional control valve 22 and humidity transducer and realize its function.
S3 of the present embodiment includes:
and S31, adjusting the opening of the air passage ratio adjusting valve 22 until the humidity in the environmental test chamber reaches the set humidity.
If the humidity in the environmental test chamber can be adjusted by adjusting the opening degree of the waterway proportion adjusting valve 22, the opening degree of the waterway proportion adjusting valve 12 does not need to be adjusted; if the humidity in the environmental test chamber can not reach the set humidity only by adjusting the opening of the air path proportion adjusting valve 22, the following steps are executed:
and S32, if the humidity in the environmental test chamber is still less than the set humidity when the opening of the air path proportion adjusting valve 22 reaches the maximum, opening the air path proportion adjusting valve 22 to the maximum and increasing the opening of the water path proportion adjusting valve 12 until the humidity in the environmental test chamber reaches the set humidity.
Specifically, the higher the temperature of the water in the water tank 11 is, the less the amount of heat absorbed when the water mist sprayed into the environmental test chamber through the atomizing nozzle 3 is vaporized into steam, the more the cooling capacity of the refrigerating system is, and the more the cooling capacity of the refrigerating system is increased due to the increase in the humidity in the environmental test chamber, but the lower the cooling capacity is required because the maximum cooling capacity of the refrigerating system is limited. In addition, as the cooling capacity of the refrigeration system increases, the dehumidification capacity of the refrigeration system also increases, and humidification into the environmental test chamber is more difficult.
In order to maintain the temperature in the environmental test chamber as the preset temperature, the water temperature in the water tank 11 needs to be reduced, the lower the water temperature is, the more the heat absorbed when the water mist sprayed into the environmental test chamber through the atomizing nozzle 3 is vaporized into water vapor, the less the refrigerating capacity of the refrigerating system is, the refrigerating capacity of the refrigerating system is also reduced, the dehumidifying capacity of the refrigerating system is reduced by reducing the air volume, and the humidity in the environmental test chamber is ensured to be the preset humidity.
Further, in order to ensure that the atomizing nozzle 3 can spray water mist into the environmental test chamber, in S3, the initial opening of the water path proportion adjusting valve 12 is set to be a first opening, the initial opening of the air path proportion adjusting valve 22 is set to be a second opening, and specific values of the first opening and the second opening are set according to actual needs.
To build the database, before S1, the method further includes:
s01, the temperature of the environment test box is adjusted to a preset temperature by the refrigerating system, and the difference value between the heat-carrying preset refrigerating capacity when a heating element simulating the operation of equipment in the environment test box heats and the initial preset refrigerating capacity when the heating element does not heat is the preset refrigerating capacity deviation;
s02, changing the water temperature in the water tank 11 and the air volume of the fan 4 until the humidity of the environmental test chamber reaches a preset humidity, wherein the refrigerating capacity of the refrigerating system is the actual refrigerating capacity;
s03, repeating S02 for multiple times to obtain multiple actual refrigerating capacities, wherein each actual refrigerating capacity corresponds to one water temperature and one air volume;
s04, comparing the actual refrigerating capacities, and taking the water temperature and the air quantity corresponding to the minimum actual refrigerating capacity as the water temperature and the air quantity corresponding to the preset refrigerating capacity deviation;
s05, if the preset temperature is changed, returning to S01 to obtain a database of water temperature and air volume of different preset temperatures under different preset refrigerating capacity deviations; if the preset humidity is changed, returning to the step S02 to obtain a database of water temperature and air volume of different preset humidity under different preset refrigerating capacity deviations; if the preset temperature and the preset humidity are changed at the same time, the operation returns to the step S01, the preset temperature in the step S01 is replaced by a new preset temperature, and the preset humidity in the step S02 is replaced by a new preset humidity, so that a database of water temperature and air volume of different preset temperatures and different preset humidities under different preset refrigerating capacity deviations is obtained.
It should be noted that, the above steps are obtained by performing a test before the test is performed in the environmental test chamber or performing a simulation calculation in an analog simulation manner, and the preset temperature and the preset humidity may be selected from the temperatures and humidities commonly used in the test process, so as to establish a corresponding database, thereby facilitating the query according to the database during the test. After the database is established in S05, the control module in S1 matches the water temperature and the air volume corresponding to the deviation of the set cooling capacity according to the database in S05.
At S05, the preset cooling capacity deviation to the preset temperature at the same water temperature is within a preset cooling capacity deviation interval, and the preset cooling capacity deviation decreases as the water temperature increases. In S05, the preset cooling capacity deviation to the preset temperature at the same air volume is within a preset cooling capacity deviation interval, and the preset cooling capacity deviation decreases as the air volume increases.
Specifically, when the temperature in the environmental test chamber is raised to the same preset temperature, the different preset refrigerating capacity deviations are divided into the following n intervals, wherein the n intervals are respectively [ X [ ]0，X1],(X1，X2],......,(X(n-1)，Xn]The corresponding water temperatures are respectively T1,T2,......,TnThe corresponding air volume is V1,V2,......,VnWherein X is0＜X1＜X2＜......＜Xn，V1＞V2＞......＞Vn，T1＞T2＞......＞Tn。
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A humidification method of an environmental test chamber is characterized by comprising the following steps:
s1, setting the temperature and the humidity of an environment test box as set temperatures and humidity as set humidity, adjusting the environment test box to the set temperatures by a refrigerating system, setting the difference value between the heat-carrying set refrigerating capacity of equipment in the environment test box during working and the initial set refrigerating capacity of the equipment during non-working as set refrigerating capacity deviation, and enabling a control module to correspond to the water temperature for humidification and the air volume of a fan (4) in the environment test box according to the set refrigerating capacity deviation;
s2, adjusting the water temperature in the water tank (11) and the air volume of the fan (4) to the corresponding values in S1;
s3, changing the opening degree of at least one of a gas path proportion adjusting valve (22) and a water path proportion adjusting valve (12) which are respectively communicated with the atomizing nozzle (3) until the humidity in the environment test box reaches the set humidity, wherein the water path proportion adjusting valve (12) is communicated with the water tank (11).
2. The humidification method of an environmental test chamber according to claim 1, wherein S3 includes:
and S31, opening of the air path proportion adjusting valve (22) is increased until the humidity in the environmental test chamber reaches the set humidity.
3. The humidification method of an environmental test chamber according to claim 2, wherein S3 further includes:
s32, if the humidity in the environmental test chamber is still smaller than the set humidity when the opening of the air path proportion adjusting valve (22) is maximum, the opening of the air path proportion adjusting valve (22) is opened to be maximum and the opening of the water path proportion adjusting valve (12) is increased until the humidity in the environmental test chamber reaches the set humidity.
4. The method of humidifying an environmental test chamber according to claim 1, wherein an initial opening degree of the water path proportion adjustment valve (12) is set to a first opening degree at S3.
5. The humidification method of an environmental test chamber according to claim 1, wherein an initial opening degree of the air path proportion adjustment valve (22) is set to a second opening degree in S3.
6. The method for humidifying an environmental test chamber according to claim 1, further comprising, before S1:
s01, the temperature of the environment test box is adjusted to a preset temperature by the refrigerating system, and the difference value between the heat-carrying preset refrigerating capacity when a heating element simulating the operation of equipment in the environment test box heats and the initial preset refrigerating capacity when the heating element does not heat is the preset refrigerating capacity deviation;
s02, changing the water temperature in the water tank (11) and the air volume of the fan (4) until the humidity of the environmental test chamber reaches a preset humidity, wherein the refrigerating capacity of the refrigerating system is the actual refrigerating capacity;
s03, repeating S02 for multiple times to obtain multiple actual refrigerating capacities, wherein each actual refrigerating capacity corresponds to one water temperature and one air volume;
s04, comparing the actual refrigerating capacities, and taking the water temperature and the air quantity corresponding to the minimum actual refrigerating capacity as the water temperature and the air quantity corresponding to the preset refrigerating capacity deviation;
s05, if the preset temperature is changed, returning to S01 to obtain a database of water temperature and air volume of different preset temperatures under different preset refrigerating capacity deviations; if the preset humidity is changed, returning to the step S02, and obtaining a database of water temperature and air volume of different preset humidities under different preset refrigerating capacity deviations; if the preset temperature and the preset humidity are changed at the same time, returning to the step S01, replacing the preset temperature in the step S01 with a new preset temperature, and replacing the preset humidity in the step S02 with a new preset humidity, so as to obtain a database of water temperature and air volume of different preset temperatures and different preset humidities under different preset refrigerating capacity deviations.
7. The humidification method of an environmental test chamber according to claim 6, wherein the control module at S1 matches a water temperature and an air amount corresponding to the deviation of the set cooling capacity according to the database at S05.
8. The method of humidifying an environmental test chamber according to claim 6, wherein the preset cooling capacity deviation for reaching the preset temperature at the same water temperature is within a preset cooling capacity deviation interval at S05, and the preset cooling capacity deviation decreases as the water temperature increases.
9. The method of humidifying a environmental test chamber according to claim 6, wherein the preset cooling capacity deviation for the same air volume to reach the preset temperature is within a preset cooling capacity deviation interval at S05, and the preset cooling capacity deviation decreases as the air volume increases.
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| CN104238592A (en) * | 2014-09-15 | 2014-12-24 | 北京东方计量测试研究所 | Rapid thermostat self-adaption control method and system |
| JP2016053863A (en) * | 2014-09-04 | 2016-04-14 | キヤノン株式会社 | Temperature regulator |
| CN209055442U (en) * | 2018-11-06 | 2019-07-02 | 安庆恒孚测控技术有限公司 | A kind of cold humidification illumination temperature and humidity combined test chamber |
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| CN112965562A (en) * | 2021-03-24 | 2021-06-15 | 济南长峰致远仪表科技有限公司 | Humidity control structure and control method of temperature and humidity verification box |
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2021
- 2021-06-21 CN CN202110684514.3A patent/CN113359894B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2016053863A (en) * | 2014-09-04 | 2016-04-14 | キヤノン株式会社 | Temperature regulator |
| CN104238592A (en) * | 2014-09-15 | 2014-12-24 | 北京东方计量测试研究所 | Rapid thermostat self-adaption control method and system |
| CN209055442U (en) * | 2018-11-06 | 2019-07-02 | 安庆恒孚测控技术有限公司 | A kind of cold humidification illumination temperature and humidity combined test chamber |
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