String pot sensor
A String pot sensor, also known as a string potentiometer or cable-extension position transducer, is a sophisticated measurement device that combines mechanical and electrical components to provide precise linear position measurements. This versatile sensor operates by converting the linear movement of a flexible cable into an electrical signal through a rotary sensor mechanism. The core component consists of a measuring cable wound around a spring-loaded drum, connected to a potentiometer or encoder. As the cable extends or retracts, the drum rotation is translated into an electrical output signal proportional to the cable's linear displacement. These sensors are engineered to maintain accuracy across various environmental conditions and can measure distances ranging from a few inches to several meters. The robust design typically includes durable housings, high-quality stainless steel cables, and precise internal mechanisms that ensure reliable operation even in challenging industrial environments. String pot sensors often feature multiple output options, including analog voltage, current outputs, or digital signals, making them compatible with various control systems and data acquisition equipment. Their versatility and reliability make them essential in numerous applications, from industrial automation and heavy machinery to research laboratories and testing facilities.
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