CN104483993B - The automatic temperature control system of alternation thermic load test specimen and control method under spatial environments - Google Patents
The automatic temperature control system of alternation thermic load test specimen and control method under spatial environments Download PDFInfo
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Abstract
The invention discloses automatic temperature control system and the control method of alternation thermic load test specimen under a kind of spatial environments.Automatic temperature control system includes that controlling end, actuating station and connection controls end and the data channel of actuating station, wherein controls end and includes: the instruction input that instruction input unit starts for Auto-Test System and stops, and each test parameters is arranged；The feedback data that CPU gathers for the data acquisition unit comprehensively analyzing user instruction, current test operating mode and actuating station, determines the operation of next step operating mode；Actuating station includes: data acquisition unit is for by operation information, feedback data, each sensor parameters and the status information of equipment of sensor acquisition automatic temperature control system.Under the spatial environments of the present invention, the automatic temperature control system of alternation thermic load test specimen and control method not only substantially increase automaticity and the work efficiency of temperature-controlling system, farthest reduce manual operation simultaneously, reduce the risk introducing personal error.
Description
Technical field
The invention belongs to spacecraft temperature control field, be specifically related to alternation thermic load test specimen under a kind of spatial environments
Automatic temperature control system and control method.
Background technology
Artificial earth satellite in orbit time, the most all occurring with the relative position of the sun and the earth
Change.Under satellite is in the strong irradiation of the sun, satellite temperature is up to more than 100 DEG C；In remaining time
In, satellite will move in earth's shadow district, owing to there is no the radiation of sunlight, the temperature of satellite likely under
Drop to less than-100 DEG C.For verifying satellites serviceability in low pressure, high/low temperature alternation environment, it is to avoid defend
Star in orbit time lost efficacy due to variations in temperature, before satellite launch, its whole star and assembly will enter on ground
Row thermal vacuum test.
The parts of satellite, assembly are varied, and wherein most assembly to experience the most during one's term of military service at satellite
Monomer start repeatedly, power-off operation, for ensureing the height emulation property of ground experiment, doing the examination of ground level heat vacuum
When testing, parts also to experience shuts down several times under worst hot case, and the operation of start under worst cold case.By
Relatively big in some parts own power, substantial amounts of heat can be produced during operation, to temperature controlled stability band
Carry out the biggest impact.For balance parts start in time, shut down the heat interference brought, the thermal vacuum of such test specimen
Test uses contact heat-exchanging more, i.e. with contact cold drawing as coolant, controls test specimen temperature.In actual applications,
Temperature control method mainly has following three kinds: one, with cold plate temperature measuring point as temperature controlling point, by by cold plate temperature control
Temperature control purpose is reached at target temperature；Two, directly with test specimen temperature point as temperature controlling point, automatic by software
Temperature control；Three, for ensureing temperature-controlled precision, human intervention temperature control process.But, the inventors discovered that, the first
Method efficiency is the highest, and test period is the shortest, but cannot ensure that the deviation value of test specimen temperature is in allowed band；The
Two kinds of method stable state accuracies are higher, but when running into the shutdown of test specimen worst hot case, worst cold case start, it is impossible to quickly
Elimination thermic load change the thermal noise that brings；The third method temperature-controlled precision is best, but complex operation, to people
Member requires higher, inefficient.To this end, provide alternation thermic load test specimen under a kind of new spatial environments from
Dynamic temperature control method is extremely important with control system.
Summary of the invention
The technical problem to be solved in the present invention is to provide the temperature of alternation thermic load test specimen under a kind of spatial environments
Automatic control system and control method, to realize the temperature automatically controlled of the test test specimen of unstable thermic load.
For solving above-mentioned technical problem, the invention provides the temperature of alternation thermic load test specimen under a kind of spatial environments
Automatic control system, described automatic temperature control system include controlling end, actuating station and connection described control end and
The data channel of described actuating station, wherein said control end includes: instruction input unit: for automatically testing system
The instruction input that system starts and stops, and the setting of each test parameters；
CPU: for comprehensively analyzing user instruction, current test operating mode and the data of described actuating station
The feedback data that collecting unit gathers, determines the operation of next step operating mode；And
First data exchange unit: for described control end and the test data of described actuating station, control instruction
Transmission；
Described actuating station includes:
Second data exchange unit: for described control end and the test data of described actuating station, control instruction
Transmission；And
Data acquisition unit: for by the operation information of sensor acquisition automatic temperature control system, feedback coefficient
According to, each sensor parameters and status information of equipment；
Wherein, described CPU includes: operating mode processing unit: for according to described instruction input unit
The test cycle parameter inputted, and combine the state of current test specimen and the persistent period of this state, calculate
Next instruction cycle test operation to be performed；
Test specimen start and stop detector unit: for the sensor parameters gathered according to described data acquisition unit, equipment
The information such as running status, it is judged that whether current test specimen occurs in that startup, shutdown operation；
Strategy amending unit: start or stop behaviour for test specimen detected when described test specimen start and stop detector unit
Make, change current temperature control strategy, and new temperature control strategy is sent to temperature control unit；
Temperature control unit: be used for when described operating mode processing unit calculates and needs to change test specimen temperature, or institute
State strategy amending unit and have modified current temperature control strategy, the test ginseng inputted in conjunction with described instruction input unit
Number, sends to described actuating station and arranges the instruction of test specimen temperature.
Present invention also offers a kind of temperature automatic control method of alternation thermic load test specimen under spatial environments, including
Following steps:
After instruction input unit input test parameters and test enabled instruction, this temperature automatically controlled on-test
Start；
After spatial environments reaches the test requirements document inputted by instruction input unit, start test test specimen is carried out
Temperature controls；
After test test specimen is carried out temperature control, start the cycle over judges whether test test specimen has reached current work
Condition target temperature；
When the temperature testing test specimen reaches target temperature, operating mode processing unit will start timing, and timing time is
This operating mode persistent period of instruction input unit input；After starting timing, test specimen start and stop detector unit detects
Whether test specimen is carried out starts or shutdown operation；
Occur to start or shutdown operation if test specimen start and stop detector unit is not detected by test specimen, then record current test specimen
Temperature and cold plate temperature；
If test specimen start and stop detector unit detects that test specimen occurs to start or shutdown operation, then repaiied by strategy amending unit
Proper front temperature control strategy, and new temperature control strategy is sent to temperature control unit；
When described operating mode processing unit calculates and needs to change test specimen temperature, or the amending unit correction of described strategy
Current temperature control strategy, the test parameters inputted in conjunction with described instruction input unit, described temperature control unit
Send and the instruction of test specimen temperature is set.
The automatic temperature control system of alternation thermic load test specimen and control method under the spatial environments that the present invention provides
Optimize system structure, improve the gentle work efficiency of Automated water, improve measuring accuracy, simplify operation
Flow process, the most farthest avoids, while saving manpower, the mistake brought due to anthropic factor to result of the test
Difference, tests for the temperature control under spatial environments and provides technical guarantee.The present invention has captured space alternation heat and has born
The key technical problems of lotus temperature control system, its automatic temperature control system can realize testing the one of system equipment
The functions such as keyed control, fault diagnosis, virtual protection, not only improve test system reliability of operation and advanced person
Property, simultaneously the most greatly alleviate operator's quantity and lack experience and contradiction between heavy test mission.
At present, this Auto-Test System comes into operation in certain system item, stable, runs at the equipment that realizes
Problem that is increasingly automated, that effectively alleviate testing crew shortage while high reliability, and reduce equipment pair
The dependence of operator's level of expertise, achieves good using effect.
Accompanying drawing explanation
Fig. 1 be the present invention a kind of spatial environments under the knot of automatic temperature control system of alternation thermic load test specimen
Structure block diagram；
Fig. 2 is the structured flowchart of the CPU in Fig. 1；
Fig. 3 be the present invention a kind of spatial environments under the temperature automatic control method flow of alternation thermic load test specimen
Figure.
Detailed description of the invention
Introduced below is the detailed description of the invention as content of the present invention, below by detailed description of the invention
The described content of the present invention is further illustrated.Certainly, describing following detailed description is only example basis
The content of the different aspect of invention, and should not be construed as limiting the invention scope.
See Fig. 1 and Fig. 2, Fig. 1 and show the temperature of alternation thermic load test specimen under a kind of spatial environments of the present invention
Automatic control system structured flowchart；Fig. 2 shows the structured flowchart of the CPU in Fig. 1.The present invention
A kind of spatial environments under the automatic temperature control system of alternation thermic load test specimen include controlling end 100, actuating station
200 control end 100 and the data channel 300 of actuating station 200 with connecting.
Control end 100 to include: the exchange of instruction input unit 110, CPU the 120, first data is single
Unit 130, data processing unit 140 and state monitoring unit 150.Instruction input unit 110: for automatically
The instruction input of test system start-up and stopping, and the setting of each test parameters；
CPU 120: comprehensively analyze user instruction, current test operating mode and data acquisition unit 240
The feedback data gathered, determines the operation of next step operating mode；
First data exchange unit 130: for controlling end 100 and the test data of actuating station 200, controlling to refer to
The transmission of order；
Data processing unit 140: the automatic temperature control system of alternation thermic load test specimen under spatial environments
Operation information and the data filtering of equipment state, calculate, classify and store；
State monitoring unit 150: for Auto-Test System operation information and graphical, the form of equipment state
Change output.
Actuating station 200 includes: performance element 210, driver element the 220, second data exchange unit 230 and
Data acquisition unit 240.Performance element 210: receive the driving instruction that driver element 220 sends, and perform
Test operation；
Driver element 220: according to controlling the action command that end 100 is sent, to the bottom of performance element 210
Equipment sends driving signal；
Second data exchange unit 230: for controlling end 100 and the test data of actuating station 200, controlling to refer to
The transmission of order；
Data acquisition unit 240: by operation information, the feedback of sensor acquisition automatic temperature control system
Data, each sensor parameters and status information of equipment.
Wherein, CPU 120 includes:
Environmental treatment unit 121: be used for when the judged result of condition judgment unit 122 is for testing,
Starting spatial context environmental simulation, spatial environments parameter is inputted by instruction input unit 110；
Condition judgment unit 122: for judging whether current whole system meets the condition of entrance trystate,
Including equipment fault judgement, warning message etc., if occurring abnormal, then will determine that the incoming exception processing unit of result
123；
Exception processing unit 123: when condition judgment unit 122 judges that now system is because of equipment fault, warning not
When can enter trystate, start the abnormality processing scheme being set by the user in advance；
Operating mode processing unit 124: for the test cycle parameter inputted according to instruction input unit 110, and
In conjunction with state and the persistent period of this state of current test specimen, calculate the examination to be performed of next instruction cycle
Test operation；
Test specimen start and stop detector unit 125: the sensor parameters that gathered according to data acquisition unit 240, equipment
The information such as running status, it is judged that whether current test specimen occurs in that startup, shutdown operation；
Temperature control unit 126: for changing test specimen temperature when operating mode processing unit 124 result for needs
Time, or strategy amending unit 127 have modified current strategies, the test that combined command input block 110 is inputted
Parameter, sends to actuating station 200 and arranges the instruction of test specimen temperature；
Strategy amending unit 127: when test specimen start and stop detector unit 125 detects starting or stoping of test specimen,
Change current temperature control strategy, and new temperature control strategy is sent to temperature control unit 126；
Instruction signal generating unit 128: according to the result of temperature control unit 126, generates instruction, and transmits
To actuating station 200.
Wherein, the test parameters that instruction input unit 110 is arranged includes: the vacuum of experimental enviroment, cold-scarce scape
Temperature, the operating mode number that the periodicity of this test cycle, each cycle comprise, the test specimen target temperature of each operating mode
Degree, the duration of test runs of each operating mode, abnormality processing scheme (such as, shut down or ignore).
Wherein, the feedback data that described data acquisition unit 240 gathers include test specimen temperature, cold plate temperature and
Test specimen running status.
Wherein, the operation information of the automatic temperature control system that described data acquisition unit 240 gathers includes very
Reciprocal of duty cycle, ambient temperature, circulating water flow, test specimen temperature, test specimen running status, control strategy and user operation
Record.
Wherein, the equipment state that data acquisition unit 240 gathers includes opening/stop and fault alarm of equipment.
Wherein, underlying device includes vacuum pump, refrigeration system, heating system.
Wherein, sensor includes pressure transducer, temperature sensor, voltage transformer, current transformer.
Wherein, spatial environments parameter includes vacuum and background ambient temperature.
Wherein, test cycle parameter include operating mode number that the periodicity of this test cycle, each cycle comprise,
The test specimen target temperature of each operating mode, the duration of test runs of each operating mode.
Fig. 3 shows the temperature automatic control method flow diagram of alternation thermic load test specimen under a kind of spatial environments.This
Although skilled person is it is understood that disclose concrete step in Fig. 3, but these steps are only made
It is used for illustrating for example, say, that the temperature of alternation thermic load test specimen under the spatial environments of the embodiment of the present invention
Autocontrol method can also carry out multiple other step or perform the shift step of step in Fig. 3.Specifically
Ground, the embodiment of the present invention comprises the steps:
In step 410, carry out test to start；Specifically, by instruction input unit 110 (such as keyboard,
Mouse) input test parameters and test enabled instruction after, this temperature automatically controlled on-test start.
More specifically, input test parameters by instruction input unit 110, it include experimental enviroment vacuum,
Operating mode number that cold ambient temperature, the periodicity of this test cycle, each cycle comprise, the test specimen of each operating mode
Dbjective state (such as, test specimen temperature, rotating speed, moment load), the duration of test runs of each operating mode, different
Often processing scheme.Automatic temperature control system fault-free, alarm-free condition is judged at condition judgment unit 122
Under, when test starts, first judged current background environment by environmental treatment unit 121, if background environment (example
As, vacuum, background ambient temperature) reach test requirements document, directly carry out following test operation；No
Then, first carried out space environment simulation by environmental treatment unit 121, then carry out operating below.At conditional judgment list
Unit 122 judge automatic temperature control system faulty or warning under conditions of, exception processing unit 123 start
The abnormality processing scheme being set by the user in advance.
At step 420, test specimen temperature control is carried out；Specifically, reach to pass through instruction input unit in spatial environments
After the test requirements document of 110 inputs, start test test specimen is carried out temperature control；
When following situation makes current test specimen temperature be unsatisfactory for current test requirement, carry out test specimen temperature control behaviour
Make:
1, there is new operating condition of test: the result of operating mode processing unit 124 is for carry out next test work
Condition or beginning next cycle circulation；
2, after being provided with test specimen target temperature, test specimen start and stop detector unit 125 detects the start and stop state of test specimen
Change, i.e. thermic load changes, and strategy amending unit 127 changes current temperature control strategy, and will be new
Temperature control strategy send to temperature control unit 126.
Temperature control unit 126 result based on new temperature control strategy or operating mode processing unit 124 is for needing
Change test specimen temperature, and the test parameters that instruction input unit 110 is inputted, restart temperature control.
In step 430, it is judged that the control temperature of test specimen, specifically, test specimen temperature control step 420 is being performed
After, start the cycle over judges whether test test specimen has reached current working target temperature；
Wherein, operating mode target temperature is inputted by instruction input unit 110, and operating mode processing unit 124 will currently try
Part temperature is compared with target temperature, until test specimen temperature reaches the basis inputted by instruction input unit 110
Secondary operating mode target temperature, then under spatial environments, the automatic temperature control system of alternation thermic load test specimen performs step
440。
In step 440, timing is started；Specifically,
When the temperature of test specimen reaches desired value, operating mode processing unit 124 will start timing, and timing time is for referring to
Make this operating mode persistent period that input block 110 inputs.
In step 450, it is judged that whether test specimen start and stop state changes；Specifically, (i.e. temperature after starting timing
Degree is stable), test specimen start and stop detector unit 125 detects whether test specimen has carried out startup, shutdown operation；
If starting, shutdown operation, then perform step 460；If starting, shutdown operation, then hold
Row step 4b0.
In step 4b0, carry out temperature control strategy correction；Current temperature control strategy is revised by strategy amending unit 127,
And restarted temperature control by temperature control unit 126.
When occurring test specimen start and stop state to change, there is a following two kinds situation:
1, under worst hot case, there occurs shutdown operation.The thermic load being now equivalent to test specimen diminishes suddenly, false
If temperature control output is constant, then time-temperature will reduce rapidly.Now, temperature control strategy is changed, by directly controlling
Test specimen temperature, changes into indirectly controlling test specimen temperature, after temperature tends towards stability, directly by control cold plate temperature
Connect control test specimen temperature.Specifically comprise the following steps that
A, temperature controlling point are changed into cold drawing measuring point by test specimen measuring point；
B, cold plate temperature is set to test specimen start and stop state change before test specimen temperature, such as: test specimen start and stop shape
Before state changes, temperature is Ts1, and cold plate temperature is Tlq1, then now control cold plate temperature for Ts1；
C, when test specimen temperature above-mentioned strategy be issued to stable after, then changed temperature controlling point into test specimen by cold drawing measuring point
Measuring point；
D, control temperature is set to Ts1.
2, under worst cold case, there occurs power-on operation.The thermic load being now equivalent to test specimen becomes suddenly big, false
If temperature control output is constant, then time-temperature will raise rapidly.Now, changing temperature control strategy, method is with above-mentioned
Method duplicates.
Said method farthest reduces the test specimen temperature fluctuation that thermic load sudden change is brought.
In step 460, reference record is carried out: after starting timing (i.e. temperature stabilization), record current
Test specimen temperature and cold plate temperature；
The data of record include Tsn, Tlqn, Tltn, and wherein n is natural number, and Tsn is a certain test specimen temperature,
Tlqn, Tltn time respectively corresponding test specimen corresponding to Tsn starts, the cold plate temperature in the time of shutdown.Such as: Ts1
=80 DEG C, Tlq1=75 DEG C, Tlt1=90 DEG C, Ts2=-50 DEG C, Tlq2=-70 DEG C, Tlt2=-65 DEG C.
In step 470, it is judged that whether timing time terminates；Specifically, it is judged that whether timing time reaches logical
Spend this operating mode persistent period of instruction input unit 110 input；If timing time has reached instruction, input is single
This operating mode persistent period of unit 110 input, then perform step 480；If timing time not up to instructs input
This operating mode persistent period of unit 110 input, then perform step 450.
In step 480, it is judged that whether this cycle completes；Specifically, after this operating mode timing terminates, according to
The current test parameter of instruction input unit 110 input judges whether this cycle terminates；
After this operating mode all terminates, operating mode processing unit 124 basis inputted according to instruction input unit 110
Loop cycle number, and completed period judge this test in whether also need to again perform this cycle
Other operating modes；If also needing to perform other operating modes in this cycle, then perform step 4c0；If having performed
The operating mode in this cycle, then perform step 490.
In step 4c0, start next operating mode；Specifically, complete to judge the judgement of step 480 when this cycle
When result is not for " end ", start the next operating mode in this cycle；
In step 490, it is judged that whether this test completes；Specifically, after this cycle period terminates, root
Judge whether this test terminates according to the current test parameter of instruction input unit 110 input；
When the loop cycle number that operating mode processing unit 124 judged result is instruction input unit 110 input is more than
The period completed, then this test is not fully complete, performs step 4d0, and is opened by operating mode processing unit 124
Beginning processes the operation of next operating mode；When operating mode processing unit 124 judged result is that instruction input unit 110 is defeated
The loop cycle number entered is equal to completed period, is performing step 4a0.
In step 4d0, start next cycle；Specifically, tested when this and judged sentencing of step 490
When disconnected result is not for " end ", start the next cycle in this cycle.
In step 4a0, after this test cycle all terminates, carry out shutdown operation.
Although above the detailed description of the invention of the present invention being described in detail and illustrates, but it should be noted that
It is that above-mentioned embodiment can be made various changes and modifications by we, but these are without departure from the essence of the present invention
Refreshing and the appended scope described in claim.
Claims (21)
1. the automatic temperature control system of alternation thermic load test specimen under a spatial environments, it is characterised in that institute
State automatic temperature control system include control end (100), actuating station (200) and connection described control end (100) and
The data channel (300) of described actuating station (200), wherein said control end (100) including:
Instruction input unit (110): the instruction input starting for Auto-Test System and stopping, and respectively try
Test parameter to arrange；
CPU (120): for comprehensively analyzing user instruction, current test operating mode and described actuating station
(200) feedback data that data acquisition unit (240) gathers, determines the operation of next step operating mode；And
First data exchange unit (130): for described control end (100) and the test number of described actuating station (200)
According to, the transmission of control instruction；
Described actuating station (200) including:
Second data exchange unit (230): for described control end (100) and described actuating station (200)
Test data, the transmission of control instruction；And
Data acquisition unit (240): for being transported by the system of automatic temperature control system described in sensor acquisition
Row information, feedback data, each sensor parameters and status information of equipment；
Wherein, described CPU (120) including:
Operating mode processing unit (124): for the test cycle inputted according to described instruction input unit (110)
Parameter, and combine the state of current test specimen and the persistent period of this state, calculating the next instruction cycle is wanted
The test operation carried out；
Test specimen start and stop detector unit (125): for the sensing gathered according to described data acquisition unit (240)
The information such as device parameter, equipment running status, it is judged that whether current test specimen occurs starting or shutdown operation；
Strategy amending unit (127): for the startup of test specimen being detected when described test specimen start and stop detector unit (125)
Or stop operation, change current temperature control strategy, and new temperature control strategy is sent to temperature control unit
(126)；
Temperature control unit (126): for needing to change test specimen when described operating mode processing unit (124) calculates
During temperature, or described strategy amending unit (127) have modified current temperature control strategy, in conjunction with described instruction input
The test parameters that unit (110) is inputted, sends to described actuating station (200) and arranges the instruction of test specimen temperature.
2. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, CPU (120) also includes:
Environmental treatment unit (121): for when condition judgment unit (122) judged result is for testing
Time, starting spatial context environmental simulation, spatial environments parameter is inputted by described instruction input unit (110)；
Condition judgment unit (122): for judging whether current whole system meets the condition of entrance trystate,
Including equipment fault judgement, warning message, if occurring abnormal, then will determine that the incoming exception processing unit of result
(123)；
Exception processing unit (123): for judging that now system is because of equipment when described condition judgment unit (122)
When fault, warning can not enter trystate, start the abnormality processing scheme being set by the user in advance；And
Instruction signal generating unit (128): for the result according to described temperature control unit (126), generates
Instruction, and transmit to described actuating station (200).
3. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, described control end (100) also includes: data processing unit (140): automatic for described temperature
The operation information of control system and the data filtering of equipment state, calculate, classify and store；
With state monitoring unit (150): for Auto-Test System operation information and equipment state graphical,
Tabular exports.
4. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, described actuating station (200) also includes:
Performance element (210): be used for receiving the driving instruction that driver element (220) sends, and perform test behaviour
Make；
Driver element (220): for the action command sent according to described control end (100), hold to described
The underlying device of row unit (210) sends driving signal.
5. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, when described test specimen start and stop detector unit (125) detects under worst hot case, shutdown operation occurs
Time, or when described test specimen start and stop detector unit (125) detects under worst cold case, when there occurs power-on operation,
Described strategy amending unit (127) changes current temperature control strategy, by directly controlling test specimen temperature, changes into by control
Cold plate temperature controls test specimen temperature indirectly, after temperature tends towards stability, more directly controls test specimen temperature.
6. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, described test parameters includes: the vacuum of experimental enviroment, cold ambient temperature, this test
The periodicity of circulation, the operating mode number that each cycle comprises, the test specimen target temperature of each operating mode, each operating mode
Duration of test runs, abnormality processing scheme.
7. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, described feedback data includes test specimen temperature, cold plate temperature and test specimen running status.
8. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, described operation information include vacuum, ambient temperature, circulating water flow, test specimen temperature,
Test specimen running status, control strategy and user operation records.
9. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, described equipment state includes the startup of equipment, stopping and/or fault alarm.
10. the automatic temperature control system of alternation thermic load test specimen under spatial environments as claimed in claim 1,
It is characterized in that, described sensor includes that pressure transducer, temperature sensor, voltage transformer, electric current are mutual
Sensor.
The automatic temperature control system of alternation thermic load test specimen under 11. spatial environmentss as claimed in claim 4,
It is characterized in that, described underlying device includes vacuum pump, refrigeration system, heating system.
The automatic temperature control system of alternation thermic load test specimen under 12. spatial environmentss as claimed in claim 2,
It is characterized in that, described spatial environments parameter includes vacuum and background ambient temperature.
The automatic temperature control system of alternation thermic load test specimen under 13. spatial environmentss as claimed in claim 1,
It is characterized in that, described test cycle parameter includes that the periodicity of this test cycle, each cycle comprise
Operating mode number, the test specimen target temperature of each operating mode, the duration of test runs of each operating mode.
The temperature automatic control method of alternation thermic load test specimen under 14. 1 kinds of spatial environmentss, it is characterised in that bag
Include following steps:
After instruction input unit (110) input test parameters and test enabled instruction, this is temperature automatically controlled
On-test, starts；
After spatial environments reaches the test requirements document inputted by instruction input unit (110), start test
Test specimen carries out temperature control；
After test test specimen is carried out temperature control, start the cycle over judges whether test test specimen has reached current work
Condition target temperature；
When the temperature testing test specimen reaches target temperature, operating mode processing unit (124) will start timing, meter
Time the time be this operating mode persistent period that instruction input unit (110) inputs；
After starting timing, whether test specimen start and stop detector unit (125) detection test specimen carries out starting or shutdown operation；
Occur to start or shutdown operation if test specimen start and stop detector unit (125) is not detected by test specimen, then record is worked as
Front test specimen temperature and cold plate temperature；
If test specimen start and stop detector unit (125) detects that test specimen occurs to start or shutdown operation, then repaiied by strategy
Positive unit (127) revises current temperature control strategy, and sends new temperature control strategy to temperature control unit (126)；
When described operating mode processing unit (124) calculates and needs to change test specimen temperature, or described strategy is revised
Unit (127) have modified current temperature control strategy, the test ginseng inputted in conjunction with described instruction input unit (110)
Number, described temperature control unit (126) sends and arranges the instruction of test specimen temperature.
The temperature automatic control method of alternation thermic load test specimen under 15. spatial environmentss as claimed in claim 14,
It is characterized in that, described temperature automatic control method includes:
Judge whether timing time reaches the current working requirement inputted by described instruction input unit (110)；
After this operating mode timing terminates, the current test ginseng inputted according to described instruction input unit (110)
Number judges whether this cycle period terminates；
When this cycle period is not for " end ", start the next operating mode in this cycle；
After this cycle period terminates, the current test ginseng inputted according to described instruction input unit (110)
Number judges whether this test terminates；
When this test cycle is not for " end ", start the next cycle in this cycle；
After this test cycle all terminates, carry out shutdown operation.
The temperature automatic control method of alternation thermic load test specimen under 16. spatial environmentss as claimed in claim 14,
It is characterized in that, when detecting under worst hot case, when there is shutdown operation, maybe when detecting under worst cold case,
When there occurs power-on operation, described strategy amending unit (127) changes current temperature control strategy, by directly controlling examination
Part temperature, changes into indirectly controlling test specimen temperature, after temperature tends towards stability, more directly by control cold plate temperature
Control test specimen temperature.
The temperature automatic control method of alternation thermic load test specimen under 17. spatial environmentss as claimed in claim 16,
It is characterized in that, when detecting under worst hot case, when there is shutdown operation, maybe when detecting under worst cold case,
When there occurs power-on operation, the step that described strategy amending unit (127) changes current temperature control strategy includes:
Temperature controlling point is changed into cold drawing measuring point by test specimen measuring point；
Cold plate temperature is set to test specimen and starts or stops the test specimen temperature before state changes；
After described test specimen temperature reaches to stablize, then changed temperature controlling point into test specimen measuring point by cold drawing measuring point, and will examination
Part temperature is set to test specimen and starts or stops the test specimen temperature before state changes.
The temperature automatic control method of alternation thermic load test specimen under 18. spatial environmentss as claimed in claim 14,
It is characterized in that, described test parameters includes: the vacuum of experimental enviroment and cold ambient temperature, this test
The periodicity of circulation, the operating mode number that each cycle comprises, the test specimen target temperature of each operating mode, each operating mode
Duration of test runs.
The temperature automatic control method of alternation thermic load test specimen under 19. spatial environmentss as claimed in claim 14,
It is characterized in that, described spatial environments includes vacuum and background ambient temperature.
The temperature automatic control method of alternation thermic load test specimen under 20. spatial environmentss as claimed in claim 14,
It is characterized in that, it is judged that described test test specimen can exist test when whether reaching current working target temperature allows
In the range of error.
The temperature automatic control method of alternation thermic load test specimen under 21. spatial environmentss as claimed in claim 14,
It is characterized in that, described shutdown operation includes: test specimen is risen again and space environment simulation equipment downtime.
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| CN107272451A (en) * | 2016-04-08 | 2017-10-20 | 上海利正卫星应用技术有限公司 | Vacuum test control system and method |
| CN107943153B (en) * | 2017-12-08 | 2019-08-27 | 北京卫星环境工程研究所 | The parallel temperature-controlling system of multi-measuring point multiloop under vacuum low-temperature environment |
| CN108169595A (en) * | 2017-12-21 | 2018-06-15 | 中国电子产品可靠性与环境试验研究所 | Intelligentized sample detection means and specimen inspection system |
| CN110262217A (en) * | 2019-05-07 | 2019-09-20 | 川田机械制造(上海)有限公司 | It controls the method for equipment start-stop and has the equipment of start-up and shut-down control function |
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| US4969508A (en) * | 1990-01-25 | 1990-11-13 | United Enertech Corporation | Wireless thermostat and room environment control system |
| CN100479274C (en) * | 2007-08-07 | 2009-04-15 | 山西大学 | A standard temperature control device |
| CN100561392C (en) * | 2009-01-21 | 2009-11-18 | 北京航空航天大学 | A kind of nano-satellite spacing heat sink simulator |
| US9297569B2 (en) * | 2010-07-27 | 2016-03-29 | Raytheon Company | System and method for providing efficient cooling within a test environment |
| CN102980764B (en) * | 2012-11-29 | 2015-06-17 | 北京卫星环境工程研究所 | Automatic testing system and testing method of harmonic drive mechanism in space environment |
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