Summary: Selecting the right bearings for wind speed sensors is crucial for ensuring durability and reducing maintenance costs. This article discusses the working principle of wind speed sensors, the environmental challenges they face, and how self-lubricating bearings offer significant advantages over traditional rust-proof bearings.

Wind speed sensors come in various styles today, mainly featuring plastic or metal housings, etc.

The working principle involves wind driving three cups to rotate in a circular motion, which in turn rotates a circular ferrite magnet (铁氧体磁铁). This magnet moves around a coil (绕组/线圈), cutting through magnetic lines and producing pulse signals (脉冲信号) of different speeds but the same frequency. These signals are converted by a control platform to determine the theoretical wind speed (理论风速).

Wind speed sensors are used in diverse environments such as deserts, coastlines, plateaus, wetlands, etc.

Early wind speed sensors utilized rust-proof bearings (防锈轴承) on the magnets, which required high concentricity (同心度). However, these bearings had poor dust resistance (防尘能力), leading to rust or damage from sand over time, increasing maintenance costs.

Our wind speed sensors use self-lubricating bearings (自润滑轴承), which are easy to install and less susceptible to damage from fine debris or rust. This ensures smoother operation over a longer period, reducing costs and increasing the lifespan of the wind speed sensor.