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High-precision sun exposure sensor and measuring method thereof

A measurement method and sensor technology, applied in the direction of measuring devices, sunshine time recorders, scientific instruments, etc., can solve the problems of low measurement accuracy, high dependence on the quality of recording media, difficulty in adapting to high-precision automatic observation, etc., and achieve a wide range of applications , Improve measurement accuracy, improve the effect of measurement accuracy

Active Publication Date: 2015-03-25
航天新气象科技有限公司
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

These traditional methods have defects such as low measurement accuracy, high dependence on the quality of recording media, daily replacement of recording media and manual interpretation of test data, etc., which are difficult to meet the needs of high-precision automatic observation

Method used

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  • High-precision sun exposure sensor and measuring method thereof
  • High-precision sun exposure sensor and measuring method thereof
  • High-precision sun exposure sensor and measuring method thereof

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0037] like figure 2 and image 3 Shown: is the schematic diagram of existing sunshine sensor, wherein, three first photoelectric cells 12, the second photoelectric cell 17, the third photoelectric cell 18 with cylindrical diffuse reflector 13 are arranged on the same axis respectively, and pass The light-shielding cylinder 10 and the corresponding upper incident window 19 and lower incident window 20 confine the radiation incident on the second photoelectric tube 17 and the third photoelectric tube 18 .

[0038] The first photoelectric cell 12 receives radiation in a 360-degree circular range, and the second photoelectric cell 17 and the third photoelectric cell 18 receive radiation in different directions at an angular interval of 90 degrees. The window settings of the upper incident window 19 and the lower incident window 20 of the shading tube 10 ensure ...

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Abstract

The invention relates to a high-precision sun exposure sensor and a measuring method thereof. The high-precision sun exposure sensor comprises a first photoelectric tube, a second photoelectric tube and a third photoelectric tube which are arranged in a coaxial mode. A shading cylinder is provided with upper portion incidence windows and lower portion incidence windows, wherein the upper portion incidence windows are evenly and symmetrically distributed on the upper portion of the shading cylinder, the lower portion incidence windows are evenly and symmetrically distributed on the lower portion of the shading cylinder, the number of windows included in the upper portion incidence windows is consistent with that of windows included in the lower portion incidence windows, and the windows of the upper portion incidence windows and the windows of the lower portion incidence windows are distributed on the shading cylinder in a staggered mode so that diffuse radiation received by the second photoelectric tube through the upper portion incidence windows and diffuse radiation received by the third photoelectric tube through the lower portion incidence windows can be even and consistent. The high-precision sun load sensor and the measuring method of the high-precision sun load sensor can effectively improve measurement accuracy of direct solar radiation, accordingly improve sunshine duration measurement precision, especially improve the sunshine duration measurement precision to the largest extent on cloudy and semi-cloudy meteorological conditions, and are wide in application range, safe, and reliable.

Description

technical field [0001] The invention relates to a sensor and a measurement method, in particular to a high-precision sunshine sensor and a measurement method thereof, belonging to the technical field of sunshine measurement. Background technique [0002] According to the definition of sunshine hours by the World Meteorological Organization, the direct solar radiation value is greater than 120W / m 2 As the threshold for calculating the sunshine time, that is to say, the sunshine time is when the direct radiation is greater than 120W / m 2 cumulative time value. Obviously, the most accurate and direct method of measuring sunshine hours is to use a pyrheliometer to detect direct solar radiation, and add up the time when the direct radiation value is greater than the threshold. However, since pyrheliometers are expensive and must be equipped with high-precision sun tracking equipment to work properly, relatively simple insolation sensors are required for most observations of suns...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01W1/12
Inventor 徐毅刚吕文华朱庆春边泽强杨科三
Owner 航天新气象科技有限公司
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