CN208350696U - A kind of cabinet body heat transfer coefficient test macro - Google Patents
A kind of cabinet body heat transfer coefficient test macro Download PDFInfo
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- CN208350696U CN208350696U CN201821088801.8U CN201821088801U CN208350696U CN 208350696 U CN208350696 U CN 208350696U CN 201821088801 U CN201821088801 U CN 201821088801U CN 208350696 U CN208350696 U CN 208350696U
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Abstract
The utility model discloses a kind of cabinet body heat transfer coefficient test macros, which includes: canister, for accommodating tested cabinet body；Air supply device, air supply device are connected to tested cabinet body, for having the air of preset temperature to the delivered inside of tested cabinet body；In-cabinet temperature detection device, setting is in tested cabinet body, for side temperature in detecting box body；The outer temperature-detecting device of cabinet, setting is outside tested cabinet body, in canister, for detecting environmental Kuznets Curves the temperature inside the box；Hot-fluid detection device, setting is in tested cabinet body, for measuring the heat flow by being tested cabinet body；Arithmetic unit is electrically connected with temperature-detecting device outside in-cabinet temperature detection device, cabinet and hot-fluid detection device respectively, to calculate the heat transfer coefficient of tested cabinet body according to temperature, environmental Kuznets Curves the temperature inside the box and heat flow on the inside of cabinet body.The technical solution detects the heat flow by cabinet body using hot-fluid detection device, to realize the accurate test to the heat transfer coefficient of cabinet body.
Description
Technical field
The utility model relates to the field of test technology more particularly to a kind of cabinet body heat transfer coefficient test macros.
Background technique
Currently, the testing scheme of the heat transfer coefficient for the outdoor standard cabinet of base station, generally by outdoor standard
Cabinet eats dishes without rice or wine to place it in low-temperature test cabinet after closing with door, the outer surface distance low-temperature experiment cabinet of outdoor standard cabinet
Inner wall distance be not less than 600 millimeters, and the air inside and outside outdoor standard cabinet should flow, and in outdoor standard cabinet
Air velocity at surface is not greater than 2m/s.
In test, the temperature in low-temperature test cabinet is gradually slowly turned down to -32 DEG C, and by outdoor standard cabinet
Interior temperature is heated up to 23 DEG C by electric heater, keeps the temperature in outer, in low-temperature test cabinet the space of outdoor standard cabinet
At -32 DEG C ± 2 DEG C, the mean temperature difference inside and outside outdoor standard cabinet is not less than 55 DEG C.So, if in 30 minutes, outdoor mark
The temperature difference between the outer any two measuring point of standardization cabinet and in outdoor standard cabinet between any two measuring point is not more than 2 DEG C, outdoor
When standard cabinet interior power general power undulating value is not more than ± 2.5%, that is, start degree, specifically records one group every 15 minutes
Data, the data for needing to record include measuring point temperature, general power of electric appliance etc. in outdoor standard cabinet, record four group number-readings
Afterwards according to corresponding formula Numerical heat transfer coefficient.
Above-mentioned testing scheme is the prior art has at least the following problems: due to by electric heater, such as resistance wire, to outdoor standard machine
Cabinet is internally heated, then introduces insecurity factor, and resistance wire can also have surplus heat after heating power-off, waste heat will lead to survey
Test result inaccuracy, and in order to consider using keeping outdoor standard cabinet internal temperature uniform after Resistant heating, generally
It can be realized by setting fan, then introduce the uncertain factor for being likely to result in influence on test result, and for testing
The expense of the power meter of power is more expensive.
Utility model content
In view of the above problems, the utility model is proposed to overcome the above problem in order to provide one kind or at least partly solve
The certainly system and method for the above problem.
The one aspect of the utility model provides a kind of cabinet body heat transfer coefficient test macro, comprising: canister,
For accommodating tested cabinet body；Air supply device, the air supply device are connected to the tested cabinet body, for the tested cabinet body
Delivered inside has the air of preset temperature；In-cabinet temperature detection device is arranged in the tested cabinet body, for detecting cabinet body
Inside temperature；The outer temperature-detecting device of cabinet, is arranged outside the tested cabinet body, in the canister, for detecting environment
Control the temperature inside the box；Hot-fluid detection device is arranged in the tested cabinet body, for measuring the hot-fluid for passing through the tested cabinet body
Amount；Arithmetic unit, respectively with temperature-detecting device outside the in-cabinet temperature detection device, the cabinet and the hot-fluid detection device
It is electrically connected, to calculate the quilt according to temperature, described environmental Kuznets Curves the temperature inside the box and the heat flow on the inside of the cabinet body
Survey the heat transfer coefficient of cabinet body.
Optionally, the cabinet body heat transfer coefficient test macro further include: conveyance conduit, for the environmental Kuznets Curves will to be located at
The air supply device outside case is connected to the tested cabinet body.
Optionally, the air supply device includes air-conditioning equipment or oven equipment.
Optionally, described environmental Kuznets Curves the temperature inside the box is less than the preset temperature.
Optionally, the number of the in-cabinet temperature detection device is one or more；The outer temperature-detecting device of the cabinet
Number is one or more；The number of the hot-fluid detection device is one or more.
Optionally, the in-cabinet temperature detection device and the outer temperature-detecting device of the cabinet include temperature sensor, described
Hot-fluid detection device includes heat flow transducer；And the cabinet body heat transfer coefficient test macro further includes and the temperature sensor
The moisture recorder of electric connection, the hot-fluid recorder being electrically connected with the heat flow transducer.
The technical solution provided in the embodiment of the present application, has at least the following technical effects or advantages:
The heat flow by the cabinet body in canister is measured using hot-fluid detection device, and is combined to cabinet body
The accurate test to the heat transfer coefficient of cabinet body is realized in the detection of inside and outside temperature, and the program in cabinet body to be measured without being additionally arranged
The heating devices such as heating rod or heater strip are heated, and assist temperature control device without PID, relay, pressure regulator etc., while also keeping away
Exempt from the position for adjusting heating rod or heater strip at low ambient temperatures, more safety convenient, and tests simpler efficient, test
As a result stick will not be heated or heater strip stops the influence of the waste heat after heating.
The gas with preset temperature is conveyed into cabinet body using air supply device, keeps it gradually mixed with the cold air in cabinet body
Reach after conjunction uniformly, temperature plateau is without fluctuation, so then it is not necessary that fan etc. is additionally arranged in cabinet body by heating rod or heater strip
The gas of local heating dispels the composition for uniformly further simplifying test macro.
It is appreciated that being not necessarily to calculate the general power of electric appliance in cabinet body in this programme, i.e., without additional setting electric energy recording
Instrument etc., significantly reduces testing cost.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow above and other purpose, feature of the utility model
It can be more clearly understood with advantage, it is special below to lift specific embodiment of the present utility model.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the schematic block diagram of the cabinet body heat transfer coefficient test macro according to the utility model embodiment；
Fig. 2 shows the composition schematic diagrams according to the cabinet body heat transfer coefficient test macro of the utility model embodiment；
Fig. 3 shows the flow diagram of the cabinet body heat transfer coefficient test method according to the utility model embodiment.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Have below with reference to cabinet body heat transfer coefficient test macro 10 of the Fig. 1 and Fig. 2 to some embodiments of the utility model
Body explanation.
As shown in Figure 1, according to the cabinet body heat transfer coefficient test macro 10 of the utility model embodiment, comprising: environmental Kuznets Curves
Case 102, air supply device 104, in-cabinet temperature detection device 106, cabinet outer temperature-detecting device 108,110 and of hot-fluid detection device
Arithmetic unit 112.
Wherein, as shown in Fig. 2, the canister 102 is for accommodating tested cabinet body, to provide a stable, intelligence
The controllable test environment of energy；And the air supply device 104 is connected to the tested cabinet body, for into the tested cabinet body
Portion's conveying has the air of preset temperature, so that the tested cabinet body is inside and outside to form the temperature difference, so as to be passed by cabinet body
Heat.
Further, the temperature in the canister 102 is less than the air supply device 104 into the tested cabinet body
The preset temperature of the air of conveying, that is, realize the test at low ambient temperatures to cabinet body heat transfer coefficient.
Specifically, the temperature in canister 102 preferably can be taken as -32 DEG C, and air supply device 104 is into tested cabinet body
The preset temperature of the air of conveying preferably can be taken as 25 DEG C.
In some embodiments of the utility model, it is based on above scheme, air-conditioning equipment or oven equipment etc. can be passed through
Into tested cabinet body, conveying has the hot-air of certain temperature, it is ensured that air themperature is controllable and uniformly, so then can to avoid
Heating rod or heater strip, fan etc. are additionally set in cabinet body, safety, the convenience of test process not only can be improved, simultaneously
The accuracy of test result can be improved.
In some embodiments of the utility model, it is based on above scheme, as shown in Fig. 2, the cabinet body heat transfer coefficient is surveyed
Test system 10 further include: conveyance conduit 114, for the air supply device 104 outside the canister 102 will to be located at
It is connected to the tested cabinet body, to concentrate conveying hot-air into tested cabinet body.
Specifically, conveyance conduit 114 can be using pipeline made of the heat-resisting material kept the temperature, to ensure to tested cabinet body
The stability of the temperature of the air of middle conveying avoids its heat from being lost during transportation, to influence test result.
In the embodiments of the present invention, the in-cabinet temperature detection device 106 is arranged in the tested cabinet body, uses
In side temperature in detecting box body；The outer temperature-detecting device 108 of the cabinet, is arranged outside the tested cabinet body, the environmental Kuznets Curves
In case, for detecting environmental Kuznets Curves the temperature inside the box；The hot-fluid detection device 110 is arranged in the tested cabinet body, is used for
The heat flow that measurement passes through the tested cabinet body.
It is understood that using hot-fluid detection device 110 to the heat flow by the cabinet body in canister 102 into
Row measurement, and the accurate test that the heat transfer coefficient of cabinet body is realized to the detection of the inside and outside temperature of cabinet body is combined, the program is not necessarily in quilt
Heating rod is additionally set in survey cabinet body or heater strip is heated, while also avoiding adjusting heating rod at low ambient temperatures or add
The position of heated filament, more safety convenient, and test is simpler efficiently, test result will not be heated stick or heater strip stops
The influence of waste heat after heating.
Specifically, when hot-fluid detection device 110 measures the heat flow by being tested cabinet body, using thermal diffusion principle, hot-fluid
On the one hand detection device 110 incudes the tested intracorporal air dielectric temperature of cabinet, be tested the increase band in cabinet body with air velocity
The heat walked increases, and medium temperature changes, then another aspect hot-fluid detection device 110 seek the medium temperature sensed with
The temperature difference of one setting medium temperature, the temperature difference change with the variation of air dielectric flow velocity, then may further basis
Temperature difference and the proportionate relationship of velocity of medium obtain heat flow.
Further, the arithmetic unit 112 is examined with temperature outside the in-cabinet temperature detection device 106, the cabinet respectively
It surveys device 108 and the hot-fluid detection device 110 is electrically connected, according to temperature, the canister on the inside of the cabinet body
Interior temperature and the heat flow calculate the heat transfer coefficient of the tested cabinet body.
It specifically, can be after tested cabinet body internal and external temperature reaches and stablizes, in a specific embodiment, when tested cabinet body
When the temperature difference of internal and external temperature is maintained at ± 2 DEG C, it is believed that tested cabinet body internal and external temperature reaches stable, then at interval of certain time
One-time detection data, such as 15 minutes are acquired, then arithmetic unit 112 can be calculated based on thermal resistance formula and heat transfer coefficient formula
The heat transfer coefficient, wherein the thermal resistance formula are as follows:The biography
Hot coefficient formula are as follows: K=1/R and EjRepresent the heat flow, TijRepresent temperature on the inside of the cabinet body, TejRepresent the ring
Border controls the temperature inside the box, and C represents the gauge head coefficient of the hot-fluid detection device 110 and is constant, and R is represented as the cabinet to be measured
The thermal resistance of body 20, K represent the heat transfer coefficient of the cabinet body to be measured 20, and n is the data group number of the integer greater than 1 and representative acquisition,
Such as it is primary at interval of acquisition in 15 minutes, acquire 4 groups of data.
Further, the cabinet body heat transfer coefficient test macro in the utility model embodiment, the in-cabinet temperature detection dress
106 number is set as one or more, the number of the outer temperature-detecting device 108 of the cabinet is one or more, the hot-fluid inspection
The number for surveying device 110 is one or more, so be may be implemented to a certain fc-specific test FC position of cabinet body or multiple test departments
The accurate detection of the heat transfer coefficient of position；It, can be with distributing installation in corresponding position, to ensure temperature and heat and when to be multiple
The accuracy of flow detection result.
Further, temperature outside multiple in-cabinet temperature detection devices, multiple hot-fluid detection devices and multiple cabinets is being respectively adopted
When spending the corresponding detection of detection device for the cabinet body inside temperature of Numerical heat transfer coefficient, environmental Kuznets Curves the temperature inside the box and heat flow,
The mean value of temperature on the inside of collected multiple cabinet bodies, multiple environmental Kuznets Curves the temperature inside the box can will be distinguished at interval of preset time
The mean value of mean value and multiple heat flows is as one group of acquisition data.
Further, as shown in Fig. 2, there are three the outer temperature-detecting devices 108 of cabinet for setting on the tested cabinet body 20, each
The outer temperature-detecting device 108 of cabinet includes that as shown in Figure 2 being arranged in is tested outside cabinet body 20, the temperature in canister 102 passes
Sensor 1082 and moisture recorder 1084, temperature sensor 1082 be used to detect the temperature of tested 20 outer surface of cabinet body using as
It is additionally provided with and the hot-fluid detection dress in tested cabinet body 20 on temperature and the cabinet body to be measured 20 in the environmental Kuznets Curves
110 corresponding hot-fluid recorders 1102 are set, specifically include three, with the in-cabinet temperature detection device being located in tested cabinet body 20
106 corresponding moisture recorders 1062, specifically include three；Correspondingly, each in-cabinet temperature detection device 106 passes through temperature
Sensor detection passes through heat flow transducer to the temperature detection of tested 20 inner surface of cabinet body and each hot-fluid detection device 110
Realize the detection to the heat flow by cabinet body.
As shown in figure 3, according to cabinet body heat transfer coefficient test method provided by the embodiment of the utility model, including following below scheme
Step:
Tested cabinet body is placed in canister by step S302, and the tested cabinet body is connected to air supply device.
It is intracorporal pre- to be respectively arranged at the tested cabinet by step S304 for in-cabinet temperature detection device, hot-fluid detection device
Positioning is set, and temperature-detecting device outside cabinet is set to the predetermined position in the canister.
Wherein, in-cabinet temperature detection device, the outer temperature-detecting device of hot-fluid detection device and cabinet can have respectively one or
It is multiple, when to be multiple, can with distributing installation in corresponding position, to ensure the accuracy of temperature and heat flow testing result,
And temperature-detecting device in Installation cabinet in tested cabinet body, hot-fluid detection device predetermined position and be located at tested cabinet body it is outer,
Predetermined position in canister for the outer temperature-detecting device of Installation cabinet can be chosen according to specific test case.
Temperature setting in canister is the first temperature, and starts the air supply device to described by step S306
Conveying has the air-flow of second temperature in tested cabinet body, in this way, can make the tested cabinet body is inside and outside to form the temperature difference, in order to logical
It crosses tested cabinet body and realizes heat transfer.
Specifically in this step, first temperature is less than the second temperature, it is preferable that first temperature is desirable
It is -32 DEG C, the second temperature can be taken as 25 DEG C, i.e., realizes the test of cabinet body heat transfer coefficient at low ambient temperatures.
Step S308, it is primary described at interval of preset time acquisition when the tested cabinet body internal and external temperature reaches stable
In the canister that the outer temperature-detecting device of temperature, the cabinet detects on the inside of the cabinet body that in-cabinet temperature detection device detects
The heat flow that temperature and the hot-fluid detection device detect.
Specifically in this step, when the temperature difference of the tested cabinet body internal and external temperature reaches set temperature threshold value, institute is determined
It states tested cabinet body internal and external temperature and reaches stable.
Wherein, the set temperature threshold value preferably value is ± 2 DEG C；And the preset time preferably value is 15
Minute.
Step S310, the inside of the cabinet body according to multiple groups temperature, described environmental Kuznets Curves the temperature inside the box and the thermal flow meter
Calculate the heat transfer coefficient of the cabinet body to be measured.
Specifically in this step, the heat transfer coefficient can be calculated according to thermal resistance formula and heat transfer coefficient formula, wherein institute
State thermal resistance formula are as follows:The heat transfer coefficient formula are as follows: K=1/R,
And EjRepresent the heat flow, TijRepresent temperature on the inside of the cabinet body, TejDescribed environmental Kuznets Curves the temperature inside the box is represented, C is represented
The gauge head coefficient of the hot-fluid detection device and be constant, R is represented as the thermal resistance of the cabinet body to be measured, and K represents the cabinet to be measured
The heat transfer coefficient of body, n are the integer greater than 1 and the data group number for representing acquisition.
Further, temperature outside multiple in-cabinet temperature detection devices, multiple hot-fluid detection devices and multiple cabinets is being respectively adopted
When spending the corresponding detection of detection device for the cabinet body inside temperature of Numerical heat transfer coefficient, environmental Kuznets Curves the temperature inside the box and heat flow,
The mean value of temperature on the inside of collected multiple cabinet bodies, multiple environmental Kuznets Curves the temperature inside the box can will be distinguished at interval of preset time
The mean value of mean value and multiple heat flows is as one group of acquisition data.
The technical solution provided in the embodiment of the present application, has at least the following technical effects or advantages:
The heat flow by the cabinet body in canister is measured using hot-fluid detection device, and is combined to cabinet body
The accurate test to the heat transfer coefficient of cabinet body is realized in the detection of inside and outside temperature, and the program in cabinet body to be measured without being additionally arranged
The heating devices such as heating rod or heater strip are heated, and assist temperature control device without PID, relay, pressure regulator etc., while also keeping away
Exempt from the position for adjusting heating rod or heater strip at low ambient temperatures, more safety convenient, and tests simpler efficient, test
As a result stick will not be heated or heater strip stops the influence of the waste heat after heating.
The gas with preset temperature is conveyed into cabinet body using air supply device, keeps it gradually mixed with the cold air in cabinet body
Reach after conjunction uniformly, temperature plateau is without fluctuation, so then it is not necessary that fan etc. is additionally arranged in cabinet body by heating rod or heater strip
The gas of local heating dispels the composition for uniformly further simplifying test macro.
It is appreciated that being not necessarily to calculate the general power of electric appliance in cabinet body in this programme, i.e., without additional setting electric energy recording
Instrument etc., significantly reduces testing cost.
Moreover, the testing scheme of the embodiment of the present application, can be realized the test to seals such as cabinet finished products, the scope of application
Extensively.
Method and display are not inherently related to any particular computer, virtual system, or other device provided herein.
Various general-purpose systems can also be used together with teachings based herein.As described above, it constructs required by this kind of system
Structure be obvious.In addition, the utility model is also not for any particular programming language.It should be understood that can use
Various programming languages realize the content of the utility model described herein, and the description that language-specific is done above be in order to
Disclose the preferred forms of the utility model.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the utility model
Embodiment can be practiced without these specific details.In some instances, be not been shown in detail well known method,
Structure and technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more in each utility model aspect
A, in the description above to the exemplary embodiment of the utility model, each feature of the utility model is divided together sometimes
Group is into single embodiment, figure or descriptions thereof.However, the method for the disclosure should not be construed to reflect following meaning
Figure: the requires of the utility model features more more than feature expressly recited in each claim i.e. claimed.
More precisely, as reflected in the following claims, it is in terms of utility model single less than disclosed above
All features of embodiment.Therefore, it then follows thus claims of specific embodiment are expressly incorporated in the specific embodiment party
Formula, wherein separate embodiments of each claim as the utility model itself.
In addition, it will be appreciated by those of skill in the art that although some embodiments in this include institute in other embodiments
Including certain features rather than other feature, but the combination of the feature of different embodiment means to be in the utility model
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
Meaning one of can in any combination mode come using.
The utility model is limited it should be noted that above-described embodiment illustrates rather than the utility model,
And those skilled in the art can be designed alternative embodiment without departing from the scope of the appended claims.In right
In it is required that, any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" is not arranged
Except there are element or steps not listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of more
A such element.The utility model can be by means of including the hardware of several different elements and by means of properly programmed
Computer is realized.In the unit claims listing several devices, several in these devices can be by same
One hardware branch embodies.The use of word first, second, and third does not indicate any sequence.It can be by these lists
Word is construed to title.
Claims (6)
1. a kind of cabinet body heat transfer coefficient test macro characterized by comprising
Canister, for accommodating tested cabinet body；
Air supply device, the air supply device are connected to the tested cabinet body, for having to the delivered inside of the tested cabinet body
The air of preset temperature；
In-cabinet temperature detection device is arranged in the tested cabinet body, for side temperature in detecting box body；
The outer temperature-detecting device of cabinet, is arranged outside the tested cabinet body, in the canister, for detecting canister
Interior temperature；
Hot-fluid detection device is arranged in the tested cabinet body, for measuring the heat flow by the tested cabinet body；
Arithmetic unit is filled with temperature-detecting device outside the in-cabinet temperature detection device, the cabinet and hot-fluid detection respectively
Electric connection is set, according to calculating temperature, described environmental Kuznets Curves the temperature inside the box and the heat flow on the inside of the cabinet body
The heat transfer coefficient of tested cabinet body.
2. cabinet body heat transfer coefficient test macro according to claim 1, which is characterized in that further include:
Conveyance conduit is connected to for that will be located at the air supply device outside the canister with the tested cabinet body.
3. cabinet body heat transfer coefficient test macro according to claim 2, which is characterized in that
The air supply device includes air-conditioning equipment or oven equipment.
4. cabinet body heat transfer coefficient test macro according to claim 1, which is characterized in that
Described environmental Kuznets Curves the temperature inside the box is less than the preset temperature.
5. cabinet body heat transfer coefficient test macro according to any one of claim 1 to 4, which is characterized in that
The number of the in-cabinet temperature detection device is one or more；
The number of the outer temperature-detecting device of the cabinet is one or more；
The number of the hot-fluid detection device is one or more.
6. cabinet body heat transfer coefficient test macro according to claim 5, which is characterized in that
The in-cabinet temperature detection device and the outer temperature-detecting device of the cabinet include temperature sensor；And
The cabinet body heat transfer coefficient test macro further includes the moisture recorder connecting with the temperature sensor.
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| CN201821088801.8U CN208350696U (en) | 2018-07-10 | 2018-07-10 | A kind of cabinet body heat transfer coefficient test macro |
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| CN201821088801.8U CN208350696U (en) | 2018-07-10 | 2018-07-10 | A kind of cabinet body heat transfer coefficient test macro |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663403A (en) * | 2018-07-10 | 2018-10-16 | 中国信息通信研究院 | A kind of cabinet heat transfer coefficient test system and method |
| CN110082137A (en) * | 2019-04-24 | 2019-08-02 | 西安交通大学 | A kind of refrigerator different parts leakage thermic load test device and method |
| CN116989855A (en) * | 2023-09-27 | 2023-11-03 | 国网江苏省电力有限公司电力科学研究院 | Gas state multi-parameter detection sensor and self-calibration method thereof |
-
2018
- 2018-07-10 CN CN201821088801.8U patent/CN208350696U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663403A (en) * | 2018-07-10 | 2018-10-16 | 中国信息通信研究院 | A kind of cabinet heat transfer coefficient test system and method |
| CN110082137A (en) * | 2019-04-24 | 2019-08-02 | 西安交通大学 | A kind of refrigerator different parts leakage thermic load test device and method |
| CN116989855A (en) * | 2023-09-27 | 2023-11-03 | 国网江苏省电力有限公司电力科学研究院 | Gas state multi-parameter detection sensor and self-calibration method thereof |
| CN116989855B (en) * | 2023-09-27 | 2023-12-08 | 国网江苏省电力有限公司电力科学研究院 | Gas state multi-parameter detection sensor and self-calibration method thereof |
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