A Simple Wind Direction and Wind Speed ​​Sensor

Abstract

The invention discloses a simple wind direction and wind speed sensor, which comprises a base. A support is fixed on the base; a sensing frame is arranged on the upper end surface of the base; a wind sensitive bar is hung on the support; the wind sensitive bar is located in the central axis of the sensing frame; the free end of the wind sensitive bar is lower than the upper edge of the sensing frame; the inner side of each edge of the sensing frame is provided with a stress sensor; the stress sensor transmits detected signals to a wind speed conversion circuit module; the wind speed conversion circuit module is electrically connected with a display screen; and a power supply module provides power. Compared with the prior art, the simple wind direction and wind speed sensor has the beneficial effects that a flow field is little damaged, measurement inertia is small, a low wind speed can be measured, the precision is high, and the service life is long; the process is simple, the output signal is large, and the structure is reliable; both the wind speed and the wind direction can be measured at the same time; the mounting space is saved, and airflow disturbance is little; and the weight is light, the precision is high, the service life is long, and the structure is simple and reliable.

Description

technical field [0001] The invention relates to a simple wind direction and wind speed sensor. Background technique [0002] The wind speed sensor is an important instrument that can continuously monitor the wind speed and display the wind speed at the location in real time. The sensor is widely used in mines, electric power, tobacco, medicine and other fields that need real-time monitoring of wind speed. The type and performance of the wind speed sensor directly affect the detection and control quality of the system air volume. There are many kinds of wind speed sensors, the most commonly used ones are pitot tube wind speed sensor, ultrasonic vortex wind speed sensor, propeller wind speed sensor and hot wire, hot film wind speed sensor and so on. At present, the variable air volume terminal devices of various manufacturers in my country and Europe and the United States all use pitot tube wind speed sensors. The existing pitot tube wind speed sensor has good accuracy in t...

AI Technical Summary

Problems solved by technology

[0005] However, its disadvantages are: when in use, the hole surface of the total pressure measuring hole is perpendicular to the airflow direction, and there is a static pressure measuring hole on the rod wall corresponding to the total pressure measuring hole, which has limitations in use.

[0012] However, during the measurement process, the wind speed and wind direction are detected by the rotating parts. Due to the limited rotating mass of the wind speed sensor and the propeller wind speed sensor, the inertia of the sensor is large, and the rotating part destroys the flow field, so the lower wind speed cannot be measured, and the error is larger. Large, limited lifespan

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