A tension sensor is a specialized device used to measure the tension (or force) applied to a material, such as a wire, cable, or web, during manufacturing processes or other applications. It detects the force exerted on the material and provides accurate feedback to a control system, allowing for precise adjustment of tension levels.

Tension sensors come in various forms, including load cells, strain gauges, and piezoelectric sensors. These sensors are typically installed inline within the machinery handling the material and can be integrated into tension control systems. They detect even subtle changes in tension and provide real-time data to ensure consistent and optimal tension levels throughout the production process.