光学雨量传感器采用电子光学和一系列微电子滤波、放大、检波技术，能够实现雨滴大小及雨滴数量的实时扫描和计算，从而得出精确的降雨量输出。此外，雨量传感器还具有无机械配件、坚固耐用、可靠性强等特点，能够在恶劣的环境下长期稳定运行。

一、产品简介

TH-G1光学雨量传感器采用三通道窄带红外探测器、纯正弦交流信号源，具有精度高、抗环境光能力强、免维护、可兼容其他光学传感器（光照、紫外辐射、总辐射）等优点，可广泛应用于气象、农业、市政、交通等行业。该传感器采用低功耗设计，可适用于野外无人值守观测站。

二、产品特点

采用纯正弦红外光源、内置窄带滤光片、感雨面达到78平方厘米，可高精度测量降雨量、不受高强度太阳光等光线影响。高透光率感雨罩不影响直射的太阳光，可兼容内置其他光学传感器，如光照、总辐射、紫外线传感器等。

三、技术参数

1.供电电压：DC12V

2.传感器功耗：0.12W

3.电流：10ma DC12V

4.雨量分辨率：0.01mm

5.雨强范围：0-4mm/min

6.测量精度：≤±4%

7.工作环境：-40～85℃、0～100%RH

四、产品尺寸图

五、注意事项

1.传感器水平周围1米半径无遮挡，避免水滴飞溅影响

2.传感器安装位置上方应避免树木遮挡，倾斜方向也应避免树荫遮挡

3.为保证测量精度，传感器应保持水平安装
The optical rainfall sensor adopts a three channel narrowband infrared detector ａnd a pure sine AC signal source, which has the advantages of high accuracy, strong resistance to environmental light, maintenance free, ａnd compatibility with other optical sensors (illumination, ultraviolet radiation, total radiation). It can be widely used in industries such as meteorology, agriculture, municipal engineering, ａnd transportation. This sensor adopts a low-power design ａnd is suitable for unmanned observation stations in the field. This optical rainfall sensor adopts a pure sine infrared light source, built-in narrowband filter, ａnd a rain sensing surface of 78 square centimeters. It can measure rainfall with high precision ａnd is not affected by high-intensity sunlight ａnd other light. The high transmittance rain cover does not affect direct sunlight ａnd is compatible with other built-in optical sensors, such as light, total radiation, UV sensors, etc.