Potentiometric linear displacement sensor  

The advantages of photoelectric encoders: small size, precision, high resolution, no contact and no wear; the same type can detect angular displacement, but also can detect linear displacement with the help of mechanical conversion device; multi-turn photoelectric absolute encoder can Detect linear displacement with a long range (such as 25-digit multi-turn). Long lifespan, free installation, abundant interface forms and reasonable price. Mature technology has been widely used at home and abroad many years ago