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The difference between a small ultrasonic wind speed and direction sensor and a mechanical wind speed and direction sensor

by:Rika Sensors     2021-09-24
The difference between a small ultrasonic wind speed and direction sensor and a mechanical wind speed and direction sensor
Wind energy, as an inexhaustible new energy source, is closely related to human daily life and industrial production. In addition to being a renewable energy source, wind energy also has a great impact on the environment in which we live. For example, travel traffic, production labor, etc., when the wind speed is high, it will seriously affect driving safety, and even cause some natural disasters.

It can be seen that in order to use wind energy more effectively and reasonably, monitoring of wind is particularly important. With the rapid development of integrated circuits, the instruments for measuring wind speed and direction have also undergone fundamental changes. We have evolved from a mechanical wind speed and direction sensor to a more advanced and effective ultrasonic wind speed and direction sensor.

The most commonly used mechanical wind speed and direction sensors are the three-cup wind speed sensor and the rotary wing wind direction sensor. The principle is mainly to determine the wind speed and direction by the speed and angle of the rotating parts. The disadvantage is that The increase of time, the friction aging of rotating parts and other reasons can easily cause damage to the parts and affect the accuracy of the measurement. Ultrasonic wind measurement is an application of ultrasonic detection technology in gaseous media. It uses the influence of air flow (wind) to measure the wind speed by using the speed of ultrasonic propagation in the air.

RS-CFSFX-N01 small ultrasonic wind speed and direction sensor is a wind speed and direction measuring instrument developed based on the principle of ultrasonic waves. It uses the transmitted sound wave pulse to measure the phase difference at the receiving end to calculate the wind speed and direction. The shell is made of ABS engineering plastics, no moving parts, low wear and long service life, 485 communication interface, standard ModBus-RTU communication protocol, communication address and baud rate can be set, the maximum communication distance is 2000 meters. When in use, the N-direction on the device is facing true north to avoid errors.

Both the three-cup wind speed sensor and the rotary wing wind direction sensor can only measure one of them, while the small ultrasonic wind speed and wind direction sensor uses four ultrasonic probes to send and receive ultrasonic waves in a two-dimensional plane. , The measurement of wind speed and wind direction is realized by the principle that ultrasonic waves are affected by wind speed and therefore increase or decrease. Not only that, the sensor can measure the instantaneous value of wind speed and wind direction at the same time.

Compared with the conventional three-cup wind speed sensor and rotary wing wind direction sensor, the small ultrasonic wind speed and direction sensor has the following four advantages: no angle limit, no angle limit for 360°, and can obtain wind speed and wind direction values u200bu200bat the same time; Second, it adopts one-piece structure design, no moving parts as a whole, and the shell is made of engineering plastic material, which has low wear and long service life; third, it adopts random error identification technology, which can ensure low dispersion error of measurement under strong wind and make the output more stable; The equipment does not require on-site calibration and maintenance.

Of course, since it is a small ultrasonic wind speed and direction sensor, it will be smaller and exquisite compared with the general ultrasonic wind speed and direction sensor, the volume will be reduced, the use area will be wider, it is light to carry, and it is convenient to install and disassemble. It is widely used in the measurement of wind speed and direction in the fields of meteorology, ocean, environment, airport, port, laboratory, industry, agriculture and transportation.

Size: 108.4*195.4*82mm



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