What should we pay attention to when installing the anemometer?
The anemometer is used to measure instantaneous wind speed and direction, and has an automatic display function. It is mainly composed of a pole, a wind vane, a wind cup, and a wind speed and direction sensor. The direction of the wind vane is the direction of the incoming wind. The wind speed is calculated based on the rotation speed of the wind cup.
Wind speed measurement uses a low-inertia wind vane component as the sensing component. The wind vane component rotates with the wind and drives the wind direction code disk at the lower end of the rotating shaft. This code disk performs photoelectric scanning and outputs pulse signals based on 8-bit Gray code encoding. A wind direction sensor is an instrument used to measure the horizontal direction of the wind. It has a wide range of applications, such as meteorological stations, ships, oil platforms, environmental protection, etc. Instruments for measuring wind direction and wind speed include wind direction anemometers, wind direction and wind speed monitors and other wind direction and wind speed instruments. When installing such wind direction and wind speed instruments, you need to pay attention to the following points:
The site selection of the device is usually used when wind measurement instruments are used to measure wind. It is very important to reasonably select the device site. The specific requirements are as follows:
(1) The distance between the wind measuring instrument and the obstacle should be at least ten times the height of the obstacle itself. If this requirement cannot be met, the wind measuring instrument should be placed approximately 6-10 meters above the obstacle.
(2) When it is necessary to install the wind measuring instrument on the roof, it should be installed in the center of the flat roof and not to the side to avoid biased effects in a certain direction.
During the use of the instrument, if used properly, the instrument does not require maintenance, but serious contamination will cause the gap between the rotating parts and the stationary parts of the instrument to be blocked, so regular dirt is required. 2. Since long-term use of the instrument will cause bearing wear and affect the performance of the instrument, the instrument can be sent back to the factory for maintenance.
Since the anemometer is an instrument for field use, the environmental conditions during use are far different from those in the laboratory. It can be seen from the working principle of the instrument that before calibration, the rotating axis of the wind speed sensor and the coupling of the anemometer need to be connected with a hose, and the rotating axis of the sensor and the rotating axis of the instrument are required to be strictly concentric. If after installation, there are up, down, left and right If the coupling is eccentric, all the rotational torque of the coupling cannot be transmitted to the rotating shaft of the wind speed sensor, which can easily lead to inflexible rotation and thus bring errors to the measurement results. Therefore, it is necessary to repeatedly adjust the concentricity during installation, and then start the calibration work after the adjustment is completed.
