CN105136288A - Solar simulator irradiance real-time monitoring device under vacuum low-temperature condition and method thereof - Google Patents

Solar simulator irradiance real-time monitoring device under vacuum low-temperature condition and method thereof Download PDF

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Publication number
CN105136288A
CN105136288A CN201510434651.6A CN201510434651A CN105136288A CN 105136288 A CN105136288 A CN 105136288A CN 201510434651 A CN201510434651 A CN 201510434651A CN 105136288 A CN105136288 A CN 105136288A
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CN
China
Prior art keywords
pyranometer
solar simulator
real
time monitoring
irradiance
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CN201510434651.6A
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Chinese (zh)
Inventor
孙永雪
彭光东
刘瑞芳
李钰
曹金鑫
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Shanghai Institute of Satellite Equipment
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Shanghai Institute of Satellite Equipment
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Priority to CN201510434651.6A priority Critical patent/CN105136288A/en
Publication of CN105136288A publication Critical patent/CN105136288A/en
Pending legal-status Critical Current

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Abstract

The invention provides a solar simulator irradiance real-time monitoring device under the vacuum low-temperature condition. A solar simulator acts as the most accurate external heat flux simulation means at present to perform real-time monitoring on irradiance in the vacuum low-temperature test process so that enhancement of external heat flux simulation precision is facilitated. The solar simulator irradiance real-time monitoring device under the vacuum low-temperature condition comprises a total radiometer, a test lifting point, a data acquisition system and a temperature control system. The total radiometer is hung on the lifting point. The temperature control system performs temperature control on the total radiometer. The data acquisition system processes output of the total radiometer. Meanwhile, the invention also provides a monitoring method of the monitoring device. Solar simulator irradiance real-time monitoring in the test process is realized so that the solar simulator irradiance real-time monitoring device under the vacuum low-temperature condition has advantages of being simple in structural composition, convenient to implement and high in reliability.

Description

Solar simulator irradiance real-time monitoring device and method under vacuum and low temperature condition
Technical field
The present invention relates to solar simulator technical field, particularly, relate to solar simulator irradiance real-time monitoring device and method under a kind of vacuum and low temperature condition.
Background technology
Solar simulator is the equipment in the outer space solar radiation of the ground experiment lab simulation earth, is the chief component of space environment simulation equipment; Being mainly used in the heat balance test of spacecraft, material aging test and heat control material attribute testing, is the Orbital heat flux simulation means of current most authenticity, accuracy.In process of the test, under vacuum and low temperature condition, whether the irradiance of solar simulator meets testing requirements will directly affect the reliability of tested product.
At present, solar simulator irradiance is demarcated and is only carried out before the test, and whether irradiance changes and does not know in process of the test, so in order to determine irradiance stable case in process of the test, prevent emergency case from occurring, need to carry out Real-Time Monitoring to solar simulator irradiance in process of the test.
Therefore, those skilled in the art need to provide a kind of simple, reliable device and method for solar simulator irradiance Real-Time Monitoring in vacuum and low temperature process of the test.
Summary of the invention
For the above-mentioned defect existed in prior art, the object of this invention is to provide solar simulator irradiance real-time monitoring device and method under a kind of vacuum and low temperature condition, this device and method is simple, reliable, convenient to be implemented, and can realize solar simulator irradiance Real-Time Monitoring.
For achieving the above object, the present invention is achieved by the following technical solutions.
According to an aspect of the present invention, solar simulator irradiance real-time monitoring device under a kind of vacuum and low temperature condition is provided, comprise: pyranometer, test suspension centre, data acquisition system (DAS) and temperature control system, wherein, described pyranometer hangs on test suspension centre, as the optical sensor of irradiance monitoring, described temperature control system carries out temperature control to pyranometer, and the output of described data acquisition system (DAS) to pyranometer gathers and carries out AD conversion.
Preferably, described pyranometer comprises double-deck quartz glass cover, sensing element, shadow shield, table body, base and signal transmission interface; Wherein, described table body is arranged on base, and described shadow shield is arranged at the top of table body, and described sensing element is arranged at the top center place of shadow shield, described double-deck quartz glass cover covers at the outside of sensing element, and described signal transmission interface is arranged on the sidewall of table body;
The lowermost end of the base of described pyranometer is provided with heating plate, and described heating plate is connected with temperature control system by signal transmission interface;
Described sensing element is connected with data acquisition system (DAS) by signal transmission interface.
Preferably, described sensing element is primarily of wire winded electroplating formula thermoelectric pile composition, and the sensitive surface of sensing element is thermal center point, and when solar simulator sunlight irradiates, temperature raises; The another side relative with sensitive surface is cold node, and formation temperature difference electromotive force between cold node and thermal center point, described temperature difference electromotive force is directly proportional to the intensity of solar radiation of solar simulator.
Preferably, the sidewall diagonal position of described table body is provided with temperature sensor.
Preferably, described pyranometer is arranged within the scope of the effective irradiation of solar simulator, and is positioned at and does not block test products and accept on the position of illumination.
Preferably, described test suspension centre is in appropriate location, and enough bears pyranometer weight.
Preferably, described appropriate location is determined in the following way: test suspension centre ensures the straight mirror of light-sensitive surface positive alignment of pyranometer and within the scope of effective irradiation, can not block product and receive illumination.
Preferably, described temperature control system carries out temperature control to described pyranometer under vacuum and low temperature condition, to reduce described pyranometer temperature to the impact of test result.
Preferably, described vacuum and low temperature condition is specially: vacuum tightness is better than 1 × 10-4Pa, and environment temperature is lower than 100K.
Preferably, described pyranometer temperature controls in room temperature by described temperature control system.
Preferably, also comprise vacuum tank, described pyranometer, test suspension centre, data acquisition system (DAS) and temperature control system are all arranged in vacuum tank;
The tank skin of described vacuum tank is provided with connector, and under described vacuum and low temperature condition, solar simulator irradiance real-time monitoring device is connected with external monitoring system by connector.
According to a second aspect of the invention, provide the monitoring method of solar simulator irradiance real-time monitoring device under a kind of vacuum and low temperature condition, comprise the steps:
Pyranometer accepts solar simulator illumination and produces voltage output, and described data acquisition system (DAS) gathers output voltage and carries out AD conversion, and the magnitude of voltage recorded, divided by the sensitivity coefficient of pyranometer, is radiant quantity, following formulae discovery:
In formula, mV is pyranometer actual measurement voltage, and mW is irradiance unit;
Described pyranometer sensitivity coefficient value range is 7 ~ 14 μ vw -1m 2.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention is arranged in the vacuum tank in process of the test, as long as in solar simulator effective light spot, and does not block product and accepts illumination.
2, solar simulator irradiance real-time monitoring device and method under vacuum and low temperature condition of the present invention, using Real-Time Monitoring irradiance in solar simulator process of the test, can meet operating condition of test requirement.
3, present invention achieves solar simulator irradiance Real-Time Monitoring in process of the test; Adopt test suspension centre to fix pyranometer, structure simply, firm, enforcement is convenient; Adopt data acquisition system (DAS) to export pyranometer to process, provide test result by computing machine, convenient and swift; Adopt temperature control system to carry out temperature control to pyranometer, avoid pyranometer temperature variation to have an impact to test result; This monitoring device also can use under the open environment of normal temperature and pressure; This monitoring device has the advantage that structure composition is simple, enforcement is convenient, reliability is high.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of solar simulator irradiance real-time monitoring device under vacuum and low temperature condition of the present invention;
Fig. 2 is the pyranometer structural representation of solar simulator irradiance real-time monitoring device under vacuum and low temperature condition of the present invention;
In figure: 1 is double-deck quartz glass cover, 2 is sensing element, and 3 is shadow shield, and 4 is table body, and 5 is data transmission interface, and 6 is base.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Embodiment
Present embodiments provide solar simulator irradiance real-time monitoring device under a kind of vacuum and low temperature condition, comprise: pyranometer, test suspension centre, data acquisition system (DAS) and temperature control system, described pyranometer hangs on suspension centre, described temperature control system carries out temperature control to pyranometer, and described data acquisition system (DAS) exports pyranometer and processes.
Further, described pyranometer is TBQ-2-B-I, as the optical sensor of irradiance monitoring.
Further, described pyranometer comprises double-deck quartz glass cover, sensing element, shadow shield, table body, base and signal transmission interface; Wherein, described table body is arranged on base, and described shadow shield is arranged at the top of table body, and described sensing element is arranged at the top center place of shadow shield, described double-deck quartz glass cover covers at the outside of sensing element, and described signal transmission interface is arranged on the sidewall of table body;
Described pyranometer is connected with temperature control system with data acquisition system (DAS) respectively by signal transmission interface.
Further, described pyranometer is hung on test suspension centre, and pyranometer must within the scope of solar simulator effective irradiation, and can not block test products and accept illumination.
Further, described test suspension centre will be in appropriate location, and enough bears pyranometer weight.
Further, described data acquisition system (DAS) carries out AD conversion to the output of described pyranometer, provides irradiance data.
Further, described temperature control system carries out temperature control accurately, to reduce described pyranometer temperature to the impact of test result to described pyranometer under vacuum and low temperature.
Further, described pyranometer temperature controls in room temperature by described temperature control system.
Further, in vacuum and low temperature process of the test, Real-Time Monitoring can be carried out to solar simulator irradiance.
Below in conjunction with accompanying drawing, the present embodiment is further described.
Please refer to Fig. 1 to Fig. 2, solar simulator irradiance real-time monitoring device under a kind of vacuum and low temperature condition, comprise: pyranometer, test suspension centre, data acquisition system (DAS) and temperature control system, described pyranometer hangs on test suspension centre, described temperature control system carries out temperature control to pyranometer, and described data acquisition system (DAS) exports pyranometer and processes.
Pyranometer comprises double-deck quartz glass cover, sensing element, shadow shield, table body, data transmission interface, base.Sensing element is the core of pyranometer, be made up of the wire winded electroplating formula thermoelectric pile responded fast, sensitive surface is hot junction, and when there being sunlight to irradiate, temperature raises, the cold node formation temperature difference electromotive force of it and another side, this electromotive force is directly proportional to intensity of solar radiation.Double glazing cover is to reduce the impact of cross-ventilation on radiometer, and inner cover is established in order to the infrared radiation blocking outer cover itself.
Pyranometer serviceability temperature scope-10 ~ 40 DEG C, in order to ensure measurement result accuracy, need to carry out thermal control to it, because pyranometer surface configuration is complicated, the circular heating plate of 100mm is pasted at its lowermost end, and bag multilayer is incubated, because sunlight direct irradiation shadow shield, so note shadow shield not being encased.2 temperature sensor PT100s are pasted, Real-Time Monitoring pyranometer temperature variation at pyranometer side diagonal position.Be inserted on the corresponding connector of tank skin after heating plate, PT100 and data transmission link wiring complete, the outer corresponding connection power supply of tank and computing machine.Pyranometer is hung in tank and be applicable to position, namely ensure that pyranometer is within the scope of solar simulator effective irradiation, and photo-sensitive cell is facing to light source direction, ensures that again not blocking test products accepts illumination.
After on-test, open solar simulator, pyranometer accepts illumination and just has voltage output, and measure by data acquisition system (DAS), the magnitude of voltage recorded, divided by the sensitivity coefficient of pyranometer, is radiant quantity, following formulae discovery:
Pyranometer sensitivity coefficient is value range 7 ~ 14 μ vw -1m 2, need to measure to measurement unit pyranometer.
In the present embodiment, pyranometer sensitivity coefficient is preferably 9.05 μ vw -1m 2.
Solar simulator irradiance real-time monitoring device and method under the vacuum and low temperature condition that the present embodiment provides, solar simulator is as current Orbital heat flux simulation means the most accurately, in vacuum and low temperature process of the test, Real-Time Monitoring is carried out to irradiance, be conducive to improving Orbital heat flux simulation precision.The present embodiment achieves solar simulator irradiance Real-Time Monitoring in process of the test, has the advantage that structure composition is simple, enforcement is convenient, reliability is high.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.

Claims (10)

1. solar simulator irradiance real-time monitoring device under a vacuum and low temperature condition, it is characterized in that, comprising: pyranometer, test suspension centre, data acquisition system (DAS) and temperature control system, wherein, described pyranometer hangs on test suspension centre, as the optical sensor of irradiance monitoring; Described temperature control system carries out temperature control to pyranometer; The output of described data acquisition system (DAS) to pyranometer gathers and carries out AD conversion.
2. solar simulator irradiance real-time monitoring device under vacuum and low temperature condition according to claim 1, is characterized in that, described pyranometer comprises double-deck quartz glass cover, sensing element, shadow shield, table body, base and signal transmission interface; Wherein, described table body is arranged on base, and described shadow shield is arranged at the top of table body, and described sensing element is arranged at the top center place of shadow shield, described double-deck quartz glass cover covers at the outside of sensing element, and described signal transmission interface is arranged on the sidewall of table body;
The lowermost end of the base of described pyranometer is provided with heating plate, and described heating plate is connected with temperature control system by signal transmission interface;
Described sensing element is connected with data acquisition system (DAS) by signal transmission interface.
3. solar simulator irradiance real-time monitoring device under vacuum and low temperature condition according to claim 2, it is characterized in that, described sensing element is primarily of wire winded electroplating formula thermoelectric pile composition, and the sensitive surface of sensing element is thermal center point, and when solar simulator sunlight irradiates, temperature raises; The another side relative with sensitive surface is cold node, and formation temperature difference electromotive force between cold node and thermal center point, described temperature difference electromotive force is directly proportional to the intensity of solar radiation of solar simulator.
4. solar simulator irradiance real-time monitoring device under vacuum and low temperature condition according to claim 1, is characterized in that, the sidewall diagonal position of described table body is provided with temperature sensor.
5. solar simulator irradiance real-time monitoring device under vacuum and low temperature condition according to claim 1, it is characterized in that, described pyranometer is arranged within the scope of the effective irradiation of solar simulator, and is positioned at and does not block test products and accept on the position of illumination.
6. solar simulator irradiance real-time monitoring device under vacuum and low temperature condition according to claim 5, is characterized in that, described test suspension centre requires enough to bear pyranometer weight.
7. solar simulator irradiance real-time monitoring device under vacuum and low temperature condition according to claim 1, it is characterized in that, described temperature control system carries out temperature control to described pyranometer under vacuum and low temperature condition;
Described vacuum and low temperature condition is specially: vacuum tightness is better than 1 × 10-4Pa, and environment temperature is lower than 100K.
8. solar simulator irradiance real-time monitoring device under vacuum and low temperature condition according to claim 7, is characterized in that, described pyranometer temperature controls in room temperature by described temperature control system.
9. solar simulator irradiance real-time monitoring device under vacuum and low temperature condition according to any one of claim 1 to 8, it is characterized in that, also comprise vacuum tank, described pyranometer, test suspension centre, data acquisition system (DAS) and temperature control system are all arranged in vacuum tank;
The tank skin of described vacuum tank is provided with connector, and under described vacuum and low temperature condition, solar simulator irradiance real-time monitoring device is connected with external monitoring system by connector.
10. under the vacuum and low temperature condition according to any one of claim 1 to 9, a monitoring method for solar simulator irradiance real-time monitoring device, is characterized in that, comprise the steps:
Pyranometer accepts solar simulator illumination and produces voltage output, and data acquisition system (DAS) gathers output voltage and carries out AD conversion, and the magnitude of voltage recorded, divided by the sensitivity coefficient of pyranometer, is radiant quantity, following formulae discovery:
In formula, mV is pyranometer actual measurement voltage, W/m 2for irradiance unit;
Described pyranometer sensitivity coefficient value range is 7 ~ 14 μ vw -1m 2.
CN201510434651.6A 2015-07-22 2015-07-22 Solar simulator irradiance real-time monitoring device under vacuum low-temperature condition and method thereof Pending CN105136288A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105043538A (en) * 2015-07-27 2015-11-11 上海卫星装备研究所 Solar simulator irradiance uniformity detection device and detection method in space environment
CN107054701A (en) * 2016-12-12 2017-08-18 兰州空间技术物理研究所 A kind of experimental rig for simulating the in-orbit solar irradiation of ion thruster
CN109444089A (en) * 2018-12-19 2019-03-08 江苏省无线电科学研究所有限公司 A kind of transmitance computing device for global radiation sensor ball cover

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CN101285703A (en) * 2008-01-22 2008-10-15 西北工业大学 Device for measuring radiation and scattered light field three dimensional distribution
US20100079747A1 (en) * 2008-10-01 2010-04-01 Park Seong Chong Instrument and method for measuring total luminous flux of luminous elements
CN201653545U (en) * 2009-12-04 2010-11-24 北京卫星环境工程研究所 Photoelectric detector probe structure and irradiation uniformity tester using same
CN104457978A (en) * 2014-10-20 2015-03-25 青岛农业大学 Light irradiation intensity detector and detection method of light irradiation intensity detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101285703A (en) * 2008-01-22 2008-10-15 西北工业大学 Device for measuring radiation and scattered light field three dimensional distribution
US20100079747A1 (en) * 2008-10-01 2010-04-01 Park Seong Chong Instrument and method for measuring total luminous flux of luminous elements
CN201653545U (en) * 2009-12-04 2010-11-24 北京卫星环境工程研究所 Photoelectric detector probe structure and irradiation uniformity tester using same
CN104457978A (en) * 2014-10-20 2015-03-25 青岛农业大学 Light irradiation intensity detector and detection method of light irradiation intensity detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105043538A (en) * 2015-07-27 2015-11-11 上海卫星装备研究所 Solar simulator irradiance uniformity detection device and detection method in space environment
CN107054701A (en) * 2016-12-12 2017-08-18 兰州空间技术物理研究所 A kind of experimental rig for simulating the in-orbit solar irradiation of ion thruster
CN107054701B (en) * 2016-12-12 2020-01-10 兰州空间技术物理研究所 Testing device for simulating on-orbit solar irradiation of ion thruster
CN109444089A (en) * 2018-12-19 2019-03-08 江苏省无线电科学研究所有限公司 A kind of transmitance computing device for global radiation sensor ball cover
CN109444089B (en) * 2018-12-19 2021-05-11 航天新气象科技有限公司 Transmittance calculating device for total radiation sensor ball cover

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