In the whole process of modern textile production, whether the tension of yarn and silk thread is stable or not directly determines the quality of finished fabric, production efficiency and raw material loss control. Three-roller tension sensor, with its accurate real-time tension detection and stable and reliable running performance, has long been an indispensable key equipment in textile weaving, spinning, warping, dyeing and finishing, laying a solid foundation for intelligent and high-end upgrading of textile industry. This three-pulley tension sensor is designed with a special three-point winding structure: the yarn passes through three groups of high-precision guide wheels, and the tension of the wire will be directly transmitted to the built-in high-precision strain measurement induction unit in the production process, and the mechanical tension will be converted into a standard electrical signal for output in real time.