cheap draw wire sensor
A draw wire sensor, also known as a string pot or cable extension position sensor, is a cost-effective solution for precise linear position measurement. These affordable sensors consist of a flexible wire wound around a spring-loaded drum, combined with a rotary sensor that measures the linear displacement as the wire extends or retracts. The cheap draw wire sensor offers reliable performance in various industrial applications, providing accurate position feedback while maintaining a budget-friendly price point. The sensor's core mechanism includes a durable wire cable, typically made from stainless steel or high-strength synthetic materials, which can extend up to several meters depending on the model. The internal measuring system converts the mechanical movement into electrical signals, enabling seamless integration with various control systems. Despite its economical price, these sensors maintain impressive accuracy levels, usually within ±0.1% of full scale. They feature robust housings designed to withstand challenging industrial environments, protecting the internal components from dust, moisture, and mechanical stress. The sensor's simple yet effective design makes it suitable for applications in manufacturing, automation, material handling, and construction equipment, where cost-effective position monitoring is essential.
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