JZYG-DP900 Laser Raindrop Spectrometer

1、 Instrument Introduction

JZYG-DP900The Type Laser Raindrop Spectrometer is a high-tech laser technology product developed and produced by Jinzhou Sunshine Meteorological Technology Co., Ltd. It uses the principle of active laser detection to continuously observe the size, velocity, and quantity of precipitation particles, and thus derive precipitation intensity, precipitation type, and radar scattering factordBzValues can distinguish between drizzle, rain, sleet, hail, snow, and mixed precipitation. The instrument is sensitive and accurate, and can be used in the field for a long time without maintenance. Mainly used in hydrology, meteorology and other fields, in rain radarZ/RFactor calibration, precipitation measurement, evaluation of human shadow operation effectiveness, scientific research on precipitation processes, and other fields have broad application prospects.

2、 Main performance indicators

1Technical features

Using laser detection technology and two-dimensional particle size and velocity distribution to analyze complex precipitation processes, the number, size, and falling velocity of precipitation particles can be quickly and accurately detected, and precipitation droplet spectra, precipitation types, precipitation intensity, radar reflectivity, etc. can be derived;

UThe structural design and splash proof design of the laser emitter and receiver reduce the probability of raindrops splashing, effectively ensuring the quality of observation data;

adopt650nmShort wavelength lasers are more conducive to detecting small particles and have higher measurement sensitivity;

Lightweight hard aluminum alloy enclosed shell, maintenance free for long-term use in the field, with a protection level of up toIP67；

The intelligent heating function prevents window fogging, frost, and other factors from affecting measurement data, while effectively controlling heating energy consumption;

Wide voltage DC power supply design, which can easily adapt to various power supply methods;

The high-performance and low-power design of the system enables devices to be easily deployed in the field at low cost, effectively reducing equipment construction and maintenance costs.

2Technical indicators

Detection area: greater than50cm²

Particle size: The diameter of liquid precipitation particles0.2—5mm; Solid precipitation particle diameter size0.2—25mm

Speed:0.2—20 m/s

Precipitation particle size distribution:32Grade particle diameter size and32Level descent speed

Radar reflectivity:-9.999—99.999dBz，±15%

Precipitation intensity:0.001—1200 mm/h

Precipitation accuracy:±5%(liquid)；±20% (solid state)

Precipitation type and meteorological code: drizzle, rain, snow, sleet, hail, etc., can be providedWMO 4677( SYNOP) 4680 (METAR)andNWScode;

Data update rate:20s—300sadjustable

Data output mode: with active upload mode and passive query mode; In passive query mode, data formats compatible with internationally used droplet spectrometers can be set for user convenience.

Interface:RS232/RS485, baud rate adjustable

Protection level:IP67

Power supply mode:9~36VDC, typical12VDCAdapt to solar power supply

Power consumption: Intelligent heating working mode, no rain power consumption less than1.5WThe peak power of rain is less than5.5W

Working environment temperature:-40℃—＋ 80℃

Relative humidity at work:0—99%

3、 Comparison of main technical performance with German products

4JZYGAnalysis of the advantages of laser raindrop spectrometer

1. Overall structure: The JZYG raindrop spectrometer adopts a U-shaped structure, as well as the design of splash proof structures for the laser transmitter and receiver, which effectively reduces the probability of raindrop splashing. The optical window is designed to be hidden away from the outer edge, which can effectively prevent rain and snow from entering the window and affecting the measurement performance, thus providing better guarantee for the quality of observation data.

2. Laser detection wavelength: The shorter the laser detection wavelength, the less diffraction effect of particles, the smaller the measurement error, and the higher the sensitivity and accuracy. The ASHUR laser raindrop spectrometer uses a 650nm laser to effectively improve measurement sensitivity and accuracy.

3. The JZYG raindrop spectrometer adopts intelligent heating control technology in the design of power supply and low system power consumption, which effectively controls the overall power consumption of the equipment while ensuring the accuracy of detection data, greatly reducing the requirements for equipment power supply and peripheral equipment when constructing the system. Therefore, the solar power supply mode can be achieved at a lower cost, avoiding the investment in cable layout, lightning protection engineering, and three-level lightning protection equipment inside the equipment due to AC power supply, reducing the difficulty of equipment installation and site selection, significantly reducing equipment application construction and maintenance costs, and greatly reducing the lightning protection risks of equipment and surrounding facilities. According to the regulations in the "Initial Draft of Raindrop Spectrometer Products" by the Hydrological Bureau, the JZYG Raindrop Spectrometer can achieve normal operation for more than 15 consecutive rainy days using solar power supply.

4. JZYG company's product application has the advantage of localized after-sales service, providing telephone response, on-site service and other after-sales service methods to ensure 24-hour telephone response. After receiving a fault report, the time to arrive at the fault site does not exceed 48 hours. It can ensure the reliable and stable operation of system products, strengthen technical support, and perform on-site fault diagnosis and troubleshooting. All technical inquiries, fault reports, and other issues raised by users can be promptly, accurately, and satisfactorily resolved. Taking measures such as combining preventive services with maintenance and repair, actively providing users with fast and timely technical support, ensuring the stable and normal operation of equipment, and providing strong support and guarantee for business development.

5、 Application Scene Picture

Real scene of Henan water conservancy monitoring points

Experimental photos taken by the Soil and Water Loss Test Hall of the Research Experimental Base of the Yellow River Water Conservancy Science Research Institute