Optical rainfall sensor

1.Optical rainfall sensor product introduction

The optical rainfall sensor uses a three-channel narrow-band infrared detector and a pure sine AC signal source. It has the advantages of high accuracy, strong resistance to ambient light, maintenance-free, and compatibility with other optical sensors (light, ultraviolet radiation, total radiation), and can be widely used. In meteorology, agriculture, municipal administration, transportation and other industries. The sensor adopts a low-power design and can be used in unattended observation stations in the field.

2. Optical rainfall sensor product features

The optical rainfall sensor uses a pure sinusoidal infrared light source, a built-in narrow-band 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, ultraviolet sensors, etc. (Invention patent, patent number ZL 2022 1 1306149.3)

3. Optical rainfall sensor technical parameters

1. Power supply voltage: DC12V

2. Sensor power consumption: 0.12W

3. Current: 10ma DC12V

4. Rainfall resolution: 0.01mm

5. Rain intensity range: 0-4mm/min

6.Measurement accuracy: ≤±4%

7. Working environment: -40～85℃, 0～100%RH

4. Optical rainfall sensor is a non-contact sensor that detects rainfall through infrared scanning principle, and adopts optical induction principle to measure rainfall inside.

5. Precautions for Optical rainfall sensor

1. There is no obstruction within a radius of 1 meter around the sensor level to avoid the impact of water droplets splashing.

2. The sensor should be installed above the location to avoid being blocked by trees, and in the tilted direction, it should also be avoided from being blocked by trees.

3. To ensure measurement accuracy, the sensor should be installed horizontally