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WORKING PRINCIPLE
Ultrasonic wind measurement is an application of ultrasonic detection technology in the gas medium. It uses the
influence of air flow (wind) on the propagation speed of ultrasonic in the air to measure the wind speed. Compared with
the conventional wind cup or rotor anemometer, the most important feature of this method is that the whole wind
measuring system has no mechanical rotating parts and belongs to non inertial measurement, so it can accurately
measure the high frequency component of gust pulsation in natural wind.
Ultrasonic wind speed and direction transmitter uses four ultrasonic probes to send and receive ultrasonic waves in
two-dimensional plane circularly. The principle that ultrasonic waves are affected by wind speed and thus increase or
decrease is used to measure wind speed and direction.
INTRODUCTION
WS303U small ultrasonic wind speed and direction sensor is a wind speed and direction measuring instrument based
on the ultrasonic principle. It uses the acoustic pulse sent to measure the phase difference of the receiving end to
calculate the wind speed and direction. The sensor can measure the instantaneous value of wind speed and direction
at the same time. It is widely used in the fields of meteorology, ocean, environment, airport, port, laboratory, industry,
agriculture and transportation.
The equipment with built-in electronic compass no longer has the requirement of orientation during installation. It only
needs to ensure the horizontal installation. The whole machine shell is made of high-quality ABS material, which has
the characteristics of light weight, no moving parts, strong and durable.
FEATURES
• No angle limit, wind speed and direction data can be measured at the same time
• No moving parts, small wear and long service life
• The random error identification technology can ensure the low discrete error of measurement and make the output
more stable under strong wind
• Using ABS engineering plastic shell, the design is light, portable, easy to install and disassemble
• Analog signal output, 4 ~ 20mA, 0 ~ 5V, 0 ~ 10V optional
• 485 communication interface, standard Modbus RTU communication protocol, communication address and baud rate
can be set, and the farthest communication distance is 2000 meters
• The equipment with built-in electronic compass can be installed horizontally without direction requirement
• No maintenance and field calibration required
APPEARANCE SKETCH
RS485 Type
Analog Type