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Shandong Tianhe Environmental Technology Co., Ltd
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Shandong Tianhe Environmental Technology Co., Ltd

  • E-mail

    wangyingying@yunjingtianhe.com

  • Phone

    13276363312

  • Address

    Weifang Optoelectronic Industry Accelerator

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Brief Introduction

1、 Product Overview

In meteorological applications, infrared radiation or longwave radiation refers to electromagnetic radiation with wavelengths greater than 3.0 μ m. Long wave radiation is physically related to temperature, and all objects on Earth emit long wave radiation. The spectral range of short wave radiation from the sun is 300nm to 3 μ m (accounting for 99.5% of the total solar radiation energy).

The four component net radiation sensor directly measures daily longwave and shortwave radiation and calculates the net radiation level. Meteorological observations for atmospheric radiation (radiation emitted by clouds/water vapor, carbon dioxide, etc.) and net radiation exchange between the Earth and the atmosphere. Net total radiation (shortwave+longwave) is usually measured by four net radiation meters or a single net radiation meter (whose detector can respond to the entire frequency band). The Earth's longwave radiation meter uses a hemisphere facing detector to measure longwave radiation emitted downwards. The net longwave radiation and downward emission radiation from the Earth atmosphere system can be calculated. It has been widely used in fields such as meteorology, photovoltaics, horticulture, agriculture, and industry.

2、 Product Features
1. Complies with the WMO World Meteorological Organization guidelines (CIMO Guide)
2. Strong sensitivity to infrared radiation with wavelengths ranging from 4 to 50 µ m
3. The heating effect of the silicon cover has a small error
4. Cosine response error is small
5. Reduce environmental impact

6. Has good stability


3、 Technical indicators


Technical Specifications Technical Specification
total radiation
Grade standards FIRST CLASS
Time response (95%) 13s
Zero offset of thermal radiation ±10 W/m2
Zero point offset of temperature change ±3 W/m2
Nonlinear ±1.5%
instability ±1%
Directional response ±18 W/m2
Spectral error ±3%
Temperature response (-10~40 ℃) 3%
Tilt error ±1%
spectral response 285~3000nm
Daily collection accuracy <5%
resolution 1 W/m2
Sensitivity 7~14μV/W•m-2
signal output 0~20mV
Earth radiation
spectral response 400~50000nm
Response time (sec) 95% <18s
Unstable (change/year) <2 %
temperature coefficient ≤±1%(-20℃~+50℃)
Perspective 180°
Sensitivity (µ V/W/m ²) 2~150uV/ Wm-2
Impedance (Ω) 20~140
Window heating offset < 4W/m2 (when solar radiation is 1000W/m2)
signal range -500~+500 W/m²
signal output -20~0mV
general parameters
number of channels 4-channel mV, 2-channel 4-wire platinum resistor
temperature sensor Wire type platinum resistor (JIS standard: c-1604-1989 class)
Operating Temperature -40~+70℃
weight 9kg