Optical rainfall sensor

1.Optical rainfall sensor product introduction

The Optical rainfall sensor is a product that measures rainfall using the principle of optical induction internally and can also monitor other meteorological elements.Shandong Fengtu Internet of Things Technology Co., Ltd., as an enterprise specializing in the research, development, production and sales of micro meteorological instruments, has been committed to the promotion and application of micro meteorological instruments and meteorological environment solutions. With a complete production chain, a strong technical team and a comprehensive marketing team, the meteorological products we develop and produce such as ultrasonic wind speed and direction meters, five-element micrometeorometers, six-element micrometeorometers and small automatic weather stations have been widely used in In the fields of meteorological monitoring, urban environment monitoring, wind power generation, navigation ships, aviation airports, bridges and tunnels, etc., we have customers all over the country and have achieved good social and economic benefits.

The principle of the optical rainfall sensor is to emit continuous variable frequency ultrasonic signals and detect wind speed and direction by measuring the relative phase. Compared with traditional ultrasonic wind speed and direction meters, our products overcome the need for high-precision timers and avoid measurement inaccuracies caused by sensor startup delays, demodulation circuit delays, and temperature changes.

Optical rainfall sensor innovatively realizes the six parameters of meteorological standards (ambient temperature, relative humidity, wind speed, wind direction, atmospheric pressure, optical rainfall) through a highly integrated structure, which can realize 24-hour continuous online monitoring of outdoor meteorological parameters through digital The quantitative communication interface outputs six parameters to the user at one time.

2. Optical rainfall sensor product features

1. The ultrasonic probe is hidden in the top cover to avoid interference from rain and snow accumulation and avoid obstruction by natural wind (utility model patent, patent number ZL 2020 2 3215713.X) ☆

2. The principle is to emit continuous variable frequency ultrasonic signals and detect wind speed and direction by measuring the relative phase (invention patent, patent number ZL 2021 1 0237536.5) ☆

3. Integrated six elements of wind speed, wind direction, temperature, humidity, atmospheric pressure, and optical rainfall (utility model patent, patent number ZL 2020 2 3215649.5)☆

4. Adopt advanced sensing technology, real-time measurement, no starting wind speed☆

5. Strong anti-interference ability, with watchdog circuit and automatic reset function to ensure stable operation of the system

6. High integration, no moving parts, zero wear and tear

7. Maintenance-free, no on-site calibration required

8. Using ASA engineering plastics for outdoor applications will not discolor all year round.

9. The standard output signal of product design is RS485 communication interface (MODBUS protocol); optional 232, USB, and Ethernet interfaces support real-time reading of data☆

10. Optional wireless transmission module, minimum transmission interval is 1 minute

11. The probe is a snap-on design, which solves the problem of looseness and inaccurateness during transportation and installation☆

3. Optical rainfall sensor technical parameters

1. Wind speed: measurement principle ultrasonic, 0~60m/s (±0.1m/s) resolution 0.01m/s; (Invention patent, patent number ZL 2021 1 0237536.5)

2. Wind direction: Measurement principle ultrasonic, 0~360° (±2°); Resolution: 1°; (Invention patent, patent number ZL 2021 1 0237536.5)

3. Air temperature: Measurement principle: diode junction voltage method, -40-60℃ (±0.3℃), resolution 0.01℃; (Calibration certificate of Beijing Meteorological Bureau)

4. Air humidity: measurement principle capacitive, 0-100%RH (±3%RH), resolution: 0.1%RH; (Calibration certificate of Beijing Meteorological Bureau)

5. Atmospheric pressure: Measurement principle: piezoresistive, 300-1100hpa (±0.25%), resolution 0.1hpa; (Calibration certificate of Beijing Meteorological Bureau)

6. Optical rainfall: 0-4mm/min (≤±4%) (invention patent, patent number ZL 2022 1 1306149.3)

7. Power: 0.84W

8. The production enterprise has ISO quality management system, environmental management system and occupational health management system certification☆

9. The production enterprise has a computer software registration certificate☆

10. The production enterprise is a 3A credit enterprise☆

4. Optical rainfall sensor product size chart

5. Optical rainfall sensor product structure diagram

1. Optical rain sensor

2.Control circuit

3. North arrow

4. Ultrasonic wind speed and direction

5. Louver box

6. Temperature, humidity, and air pressure monitoring locations

7. Bottom fixed flange

6. Optical rainfall sensor product wiring definition