太阳直接辐射传感器（直接辐射度计）

该直接辐射传感器是世界气象组织一级辐射表，设计用于测量太阳直接辐射。该传感器底部为一个管，管内为热电堆电路。这个黄铜管的内部是黑色的，同时采用控光隔膜保护。在大气压力条件下，管内充满干燥空气，用一个1mm厚度的可查看的Infasil II材料密封。两个法兰，每端一个，用于提供直接对准太阳的视角管理。

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ꄴ上一个：户外气象测试台

ꄲ下一个：晶体硅（薄膜、DSSC）电池测试台

相关设备精密太阳辐照度计www.dyesuntech.com/_d274358116.htm 太阳自动追踪器 www.dyesuntech.com/_d274358119.htm

The Incidence Pyrheliometer, is classified as an ISO First Class Pyrheliometer.

The type incorporates a wirewound thermopile at the base of a tube, the aperature of which bears a ratio to its length of 1 to 10, subtending an angle of 5°43'30". The inside of this brass tube is blackened and suitably diaphragmed. The tube is filled with dry air at atmospheric pressure and sealed at the viewing end by an insert carrying a 1 mm thick, Infrasil II window. Two flanges, one at each end of the tube, are provided with a sighting arrangement for aiming the pyrheliometer directly at the sun. A manually rotatable wheel (not shown) which can accommodate three filters, while leaving one aperature free, is provided..

· Classification: First Class Pyrheliometer

· Response Time (95%): 10-15 seconds

· Zero Offset to 5° C/hr change in ambient temperature: 1-2 Wm^-2

· Resolution: < 1 Wm^-2

· Non-Stability: <0.5% / yr (typical)

· Non-Linearity: ±0.5%

· Directional Response: < 10 Wm^-2

· Spectral Selectivity: 1%

· Temperature Response: ±1%

· Achievable Uncertainty (Hourly): 1-2 %

· Achievable Uncertainty (Daily): 1-2 %

· Suitable Application: Working Standard or Network Measurements