Direct Radiation Sensor

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Principle :	Thermoelectric effect
Spectral range :	0.3~3μm
Tracking drive :	12V DC stepper motor (microcomputer controlled) ，accuracy：1°
Output:	0-20mV
Sensitivity:	7~14μV·W-1·m-2
Power supply:	12~15V DC

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Product Description

Description

Features

Parameters

Description:

Direct radiation sensor, based on the principle of thermoelectric effect (thermopile), measures direct solar radiation in the spectral range of 0.3μm-3μm. In order to allow only solar radiation to reach the sensing surface, a 0.5° shading cylinder is used. The α angle of the shading cylinder is 10°, and there are several layers of gratings inside (to reduce light diffusion). When aimed at the sun, the sun's light just falls on the thermopile sensing surface at the bottom of the cylinder. The integrated tracking device uses a 12V DC stepper motor, which is controlled by a microcomputer and accurately tracks the trajectory of the sun. When the direct solar radiation exceeds 120W·m-2, it can be connected to a sunshine hour recorder to directly measure the sunshine hours.

Features:

Thermoelectric effect principle
Metal material, sturdy and durable
Microcomputer stepper motor, precise tracking
Integrated design
Beautiful and durable
Suitable for long-term observation in the field

Parameters:

Product	Direct Radiation Sensor
Measuring principle	Thermoelectric effect
Spectral range	0.3~3μm
Range	0～2000W·m^-2
Output	0-20mV
Sensitivity	7~14μV·W^-1·m^-2
Time constant	<25s（99%）
Internal resistance	100Ω
Tracking method	Automatic tracking
Tracking accuracy	1°（24h）
Tracking drive	12V DC stepper motor (microcomputer controlled)
Opening angle	4°
Stability	1%FS（Annual change ）
Operating temperature	-45~45℃
Power supply	12~15V DC
Material	Aluminum alloy/stainless steel
Weight	5Kg
Installation	Horizontal