Summary:

Ultrasonic wind speed sensor can be used in many occasions, such as wind measurement in the field of meteorology has important research value, in the field of industry and science also has a wide range of applications, accurate measurement of wind speed will have a certain role in human production and life.

At present, there are many kinds of wind speed measuring instruments, such as wind cup anemometer, thermal anemometer, ultrasonic anemometer and so on. With the development of technology, the requirements of wind speed measurement instruments in various fields are higher and higher, including volume, speed, power consumption and so on.

Advantages:

Compared with the traditional wind speed sensor, ultrasonic wind speed sensor has many advantages. For example, there is no rotating mechanical parts, so there is no wear and freeze mechanical parts due to icing, no start wind speed, fast reaction speed, wide measurement range, and in the range of wind speed output is linear, and high precision.

Ultrasonic wind speed sensor uses ultrasonic time difference method to measure wind speed. The speed at which sound travels through the air is superimposed on the speed of the air moving up the wind. If the ultrasonic wave travels in the same direction as the wind, it speeds up. Conversely, if the ultrasonic wave travels in the opposite direction to the wind, it will slow down.

Therefore, under fixed detection conditions, the velocity of ultrasonic wave in the air can be corresponding to the wind speed function. Accurate wind speed and direction can be obtained by calculation. As sound waves travel through the air, their speed is greatly affected by temperature; The anemometer detects two opposite directions in the two channels, so the effect of temperature on the speed of sound waves is negligible.

Based on the above application, JXCT recommends a self-developed ultrasonic wind speed sensor, which has the characteristics of light weight, no moving parts, rugged, and does not require maintenance and field calibration, and can output wind speed and direction at the same time.

Product Introduction:

Sensors use sound (and ultrasound) to transmit through the movement of the fluid it passes through. The electro-acoustic transducer uses ultrasonic signals to communicate with each other in pairs and determines the time difference in wave propagation caused by the airflow according to the orthogonal axis. The transducers communicate with each other to provide four independent measurements, while the headwind measurement vector is used for calculations. Combined with these measurements, wind speed and direction relative to the reference axis are calculated. Temperature measurement is used for calibration. The sensor design minimizes the impact of inclination.

At the same time, ultrasonic wind speed sensor can provide four independent test data. Correctness check is used to calculate the head wind vector. This method provides 0.15m/S wind speed sensitivity, reliability and superior linearity up to 40m/S. Customers can choose wind speed unit, output frequency and output format according to their needs.