CN2685852Y - Double-conic cavity compensating absolute radiometer - Google Patents
Double-conic cavity compensating absolute radiometer Download PDFInfo
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- CN2685852Y CN2685852Y CN 03212219 CN03212219U CN2685852Y CN 2685852 Y CN2685852 Y CN 2685852Y CN 03212219 CN03212219 CN 03212219 CN 03212219 U CN03212219 U CN 03212219U CN 2685852 Y CN2685852 Y CN 2685852Y
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Abstract
The utility model relates to a double-conic cavity commpensatiog absolute radiometer which comprises a work cavity 1, a reference cavity 2, a work cavity heat meter 3, a reference cavity heat meter 4, a heat sink 5, a work cavity shutter 6, a reference cavity shutter 7, and electric machines 8 and 9. Due to the adoption of the reference cavity shutter of the utility model, the temperature of the two cavities, two shutters, and the heat sink beside the two cavities drifts in the same direction, when the radiometer is illuminated by the sunlight. As a result, the work cavity, the reference cavity and the heat sink are in the same state of heat conduction and convection as that of the external environment, and the symmetry of the two cavities is increased, as well as the accord of the heat balance is assured. The work cavity can be exchanged with the reference cavity. The compensating effect of the work cavity is reinforced further by the reference cavity. Thereby, the measuring accuracy of the radiometer is improved, which means that the variation of the stability of measuring with the environmental temperature is improved. The utility model can serve as the meteyard for optical radiation in a metrological department, can also be used to meansure the solar irradiance to make weather report in the meteorological department, and still can be used on spacecrafts to measure solar constant.
Description
Technical field: the utility model relates to optical radiation energy meter technical field, relates to a kind of improvement to bipyramid chamber offset-type absolute radiometer.
Background technology: before the utility model, a lot of bipyramids chamber offset-type absolute radiometer is arranged, the prior art the most approaching with the utility model is absolute radiometer (the metering journal that China Testing Technology Institute produces, 1988,9 (2): 140～146), as shown in Figure 1: form by working chamber 1, reference cavity 2, working chamber temperature sensor 3, reference cavity temperature sensor 4, heat sink 5, shutter 6.The anti-phase serial connection of the output terminal of working chamber temperature sensor 3 and temperature sensor 4, during heat sink 5 temperature variation, working chamber temperature sensor 3 and temperature sensor 4 change to same direction, cancel each other, and do not influence the measurement result of absolute radiometer when making heat sink 5 temperature variation.
The major defect of this radiometer is: the front at working chamber 1 receiving plane is equipped with shutter 6, and working chamber 1 receives the radiation of shutter 6; In the face of heat sink 5, reference cavity 2 receives heat sink 5 radiation reference cavity 2 receiving planes; Because working chamber 1, reference cavity 2 and heat sink 5 and the heat conduction of external environment, different to stream mode cause two chamber thermal equilibriums not quite identical, make the compensation of 2 pairs of working chambers 1 of reference cavity incomplete, cause the measuring accuracy reduction of radiometer.
Summary of the invention: in order to overcome above-mentioned shortcoming, the purpose of this utility model is to solve two problems such as chamber thermal equilibrium is inconsistent, compensation is incomplete, measuring accuracy is low, a kind of employing symmetrical structure will be provided, improve compensation effect and improve the absolute radiometer of the novel bipyramid chamber compensation of measuring accuracy.
The utility model is as shown in Figure 2: by working chamber 1, reference cavity 2, working chamber temperature sensor 3, reference cavity temperature sensor 4, heat sink 5, working chamber shutter 6, reference cavity shutter 7 motors 8,9 form, working chamber 1 is faced identical visual field with reference cavity 2, front at working chamber 1 receiving plane is equipped with working chamber shutter 6, the plane of the receiving plane of working chamber 1 and working chamber shutter 6 is parallel to each other, be equipped with reference cavity shutter 7 in reference cavity 2 fronts, the receiving plane of reference cavity 2 and reference cavity shutter 7 planes are parallel to each other, working chamber shutter 6 and reference cavity shutter 7 are symmetrical in heat sink 5 axis placement, working chamber 1, reference cavity 2 and heat sink 5 and the heat conduction of external environment, identical to stream mode.
During the utility model work: motor 8,9 energisings, motor 8 drives working chamber shutter 6 and rotates, working chamber shutter 6 is opened, optical radiation enters working chamber 1, through certain hour, working chamber 1 reaches thermal equilibrium, constant temperature difference of formation between working chamber 1 and heat sink 5 with heat sink 5 temperature conduction, the output of working chamber temperature sensor 3 reflects the size of this temperature difference, writes down this output valve; Motor 8 drives working chamber shutter 6 and rotates, working chamber shutter 6 is closed, optical radiation can not enter working chamber 1, on the heater strip of working chamber 1, add electric power, the size of electric power that adjustment adds, make output equate that with the output valve that adds the light time record added like this electric power just is equivalent to the luminous power of incident through certain hour working chamber temperature sensor 3; The output differential concatenation of reference cavity temperature sensor 4 and working chamber temperature sensor 3, when being subjected to illumination or variation of ambient temperature to cause heat sink 5 temperature variation, because working chamber 1 is faced identical visual field with reference cavity 2, reference cavity temperature sensor 4 changes to same direction with the output of working chamber temperature sensor 3, output is cancelled out each other, and makes the measurement result that heat sink temperature changes does not influence absolute radiometer.Also can exchange use to working chamber 1 and reference cavity 2.
Good effect of the present utility model: owing to adopted reference cavity shutter of the present utility model, working chamber is faced identical visual field and shutter with reference cavity, when radiometer is subjected to rayed, near two chambeies, two shutters and two chambeies heat sink temperature is drifted about to same direction, make the heat conduction, identical of working chamber, reference cavity and heat sink and external environment to stream mode, improve the symmetry of two-chamber, guarantee two chamber thermal equilibrium unanimities, further strengthened the compensation effect of reference cavity, thereby the measuring accuracy of radiometer is improved working chamber.Raising is with the stability of variation of ambient temperature.The utility model can be used for metrological service as the optical radiation measurement benchmark, also can be used for meteorological department and do weather forecast in the ground survey solar irradiance, also can be used on and measures solar irradiance on the spacecraft.Working chamber and reference cavity can exchange, especially on the space device as the instrument of measuring solar irradiance, because the rugged surroundings in space, problems such as cold welding appear in moving component easily, in case the shutter of working chamber is not opened, as working chamber, working chamber is as the reference chamber reference cavity, can prolong instrument serviceable life.In addition, two chambeies also can replace the measuring light radiation, and measurement data can be compared mutually, verify, improves measuring accuracy.
Description of drawings:
Fig. 1 is the structural representation of prior art;
Fig. 2 is the structural representation of the utility model most preferred embodiment.
Embodiment:
The utility model most preferred embodiment is made up of working chamber 1, reference cavity 2, working chamber temperature sensor 3, reference cavity temperature sensor 4, heat sink 5, working chamber shutter 6, reference cavity shutter 7, motor 8,9 as shown in Figure 2.
Claims (1)
1, the absolute radiometer of a kind of bipyramid chamber compensation, comprise working chamber (1), reference cavity (2), working chamber temperature sensor (3), reference cavity temperature sensor (4), heat sink (5), working chamber shutter (6), motor (8), (9), it is characterized in that: also comprise reference cavity shutter (7), be equipped with reference cavity shutter (7) in reference cavity (2) front, the receiving plane of reference cavity (2) and reference cavity shutter (7) plane are parallel to each other, working chamber (1) is faced identical visual field with reference cavity (2), working chamber shutter (6) and reference cavity shutter (7) are symmetrical in the axis of heat sink (5) and place working chamber (1), the heat conduction of reference cavity (2) and heat sink (5) and external environment, identical to stream mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03212219 CN2685852Y (en) | 2003-03-26 | 2003-03-26 | Double-conic cavity compensating absolute radiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03212219 CN2685852Y (en) | 2003-03-26 | 2003-03-26 | Double-conic cavity compensating absolute radiometer |
Publications (1)
| Publication Number | Publication Date |
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| CN2685852Y true CN2685852Y (en) | 2005-03-16 |
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| CN 03212219 Expired - Fee Related CN2685852Y (en) | 2003-03-26 | 2003-03-26 | Double-conic cavity compensating absolute radiometer |
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| CN (1) | CN2685852Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427903C (en) * | 2005-03-30 | 2008-10-22 | 中国科学院长春光学精密机械与物理研究所 | Light irradiance measuring method for implementing temperature compensation on electric calibration absolute radiometer |
| CN100552395C (en) * | 2008-03-18 | 2009-10-21 | 中国科学院长春光学精密机械与物理研究所 | A kind of method for making of miniature radiation detection chip |
| CN103063650A (en) * | 2012-12-17 | 2013-04-24 | 江汉大学 | Improved atomic ground state energy detection device |
| CN106248203A (en) * | 2016-08-16 | 2016-12-21 | 中国科学院长春光学精密机械与物理研究所 | Absolute radiometer and the internal heat structure of radiometer for solar irradiance calibration |
| CN106323463A (en) * | 2016-08-16 | 2017-01-11 | 中国科学院长春光学精密机械与物理研究所 | Low-temperature radiometer for calibration of solar irradiance, and direct-connection thermal structure therein |
| CN106370312A (en) * | 2016-08-16 | 2017-02-01 | 中国科学院长春光学精密机械与物理研究所 | Absolute radiometer and absolute radiometer background space radiation and heat transfer measuring method |
| CN109655166A (en) * | 2018-12-11 | 2019-04-19 | 中国科学院长春光学精密机械与物理研究所 | A kind of multi-cavity absolute radiometer intersection calibration measurement method |
| CN110118597A (en) * | 2019-04-26 | 2019-08-13 | 中国科学院长春光学精密机械与物理研究所 | A kind of actinometer Split hot sink structure |
| CN114279597A (en) * | 2021-12-28 | 2022-04-05 | 中国科学院长春光学精密机械与物理研究所 | High-precision low-power radiant heat flow meter capable of being used for radiant heat flow tracing calibration |
-
2003
- 2003-03-26 CN CN 03212219 patent/CN2685852Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427903C (en) * | 2005-03-30 | 2008-10-22 | 中国科学院长春光学精密机械与物理研究所 | Light irradiance measuring method for implementing temperature compensation on electric calibration absolute radiometer |
| CN100552395C (en) * | 2008-03-18 | 2009-10-21 | 中国科学院长春光学精密机械与物理研究所 | A kind of method for making of miniature radiation detection chip |
| CN103063650A (en) * | 2012-12-17 | 2013-04-24 | 江汉大学 | Improved atomic ground state energy detection device |
| CN106248203A (en) * | 2016-08-16 | 2016-12-21 | 中国科学院长春光学精密机械与物理研究所 | Absolute radiometer and the internal heat structure of radiometer for solar irradiance calibration |
| CN106323463A (en) * | 2016-08-16 | 2017-01-11 | 中国科学院长春光学精密机械与物理研究所 | Low-temperature radiometer for calibration of solar irradiance, and direct-connection thermal structure therein |
| CN106370312A (en) * | 2016-08-16 | 2017-02-01 | 中国科学院长春光学精密机械与物理研究所 | Absolute radiometer and absolute radiometer background space radiation and heat transfer measuring method |
| CN109655166A (en) * | 2018-12-11 | 2019-04-19 | 中国科学院长春光学精密机械与物理研究所 | A kind of multi-cavity absolute radiometer intersection calibration measurement method |
| CN109655166B (en) * | 2018-12-11 | 2020-04-10 | 中国科学院长春光学精密机械与物理研究所 | Cross calibration measurement method for multi-cavity absolute radiometer |
| CN110118597A (en) * | 2019-04-26 | 2019-08-13 | 中国科学院长春光学精密机械与物理研究所 | A kind of actinometer Split hot sink structure |
| CN110118597B (en) * | 2019-04-26 | 2020-08-21 | 中国科学院长春光学精密机械与物理研究所 | Solar radiation score split type heat sink structure |
| CN114279597A (en) * | 2021-12-28 | 2022-04-05 | 中国科学院长春光学精密机械与物理研究所 | High-precision low-power radiant heat flow meter capable of being used for radiant heat flow tracing calibration |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |