Analysis of the Causes of Faults of Wind Direction and Anemometer Sensors
The wind direction and speed recorder is developed using the wind direction and speed sensor. During the operation, the sensor may have some failures. The following is the analysis of the failure causes of the wind direction and speed sensor:
(1) Wind speed sensor: the rotation is not flexible, there is stagnation; the wind speed indication value is 0m/s; there is a significant deviation between the wind speed indication value and the electric wind speed indication value; the starting wind speed is obviously high; the wind speed is normal at low wind speed, and the wind speed is high abnormal or markedly low. When encountering the above situation, you can carry out such an analysis, measure the wind speed sensor with electricity, if there is a fault, replace the sensor; if there is a sticking phenomenon, disassemble the sensor for maintenance and cleaning or replace the sensor; the wind speed indication value is 0m/s, check the cable and Whether there is any problem with the power supply system, use the backup device to go online, and rotate the wind speed shaft. If the shaft rotates flexibly and there is no obvious noise, it means that the rotating part of the wind speed sensor is working normally. Check whether there is data in the indication value. If there is data, check whether other parts are working normally. , if there is no data, the wind speed sensor is faulty, replace the sensor; use a multimeter to detect whether there is a frequency change between the FS and the ground in the outdoor signal transfer box, if there is no, the sensor is faulty; use a wind direction and speed calibrator to check whether the wind direction sensor is working normal.
(2) Wind direction sensor: the rotation of the wind vane is inflexible and stuck; the wind direction indication value remains unchanged at 239°; the wind direction indication value is 0°; there is an obvious deviation between the wind direction indication value and the electric wind direction indication value; Incorrect; wind vane turns but does not indicate wind direction, etc. Measure the wind direction sensor with electricity, if there is a fault, replace the sensor; if there is a sticking phenomenon, replace the sensor or disassemble the sensor for maintenance and cleaning; if it is 239°, the signal is open, check the connector and cable; the wind direction indication value is 0°check Cable and power supply system; use backup equipment to connect, turn the wind vane, if it can be rotated so that the wind direction indication value is 239°, it means that the wind direction sensor is working normally, then check whether other parts are working normally; use backup equipment to connect, turn the wind vane, always If the wind direction indication value does not appear 239°, and jumping displays often appear in other directions, it means that some infrared light-emitting diodes in the wind direction sensor are damaged. Check and repair; use the wind direction and wind speed calibrator to check whether the wind direction sensor is working normally.
Through the above method, the fault analysis of the wind direction and speed sensor of the wind direction and speed recorder is carried out. Through the fault analysis, the best method is adopted to solve the problem, so as to ensure that the wind direction and speed meter can monitor the change of wind direction and speed accurately from time to time during the monitoring process.
