Disclosed is a tension measuring device (100) used for measuring the tension of yarn, the device comprising: a sensor support (10); a pressure sensor (20) mounted on the sensor support and provided with a sensing part for acquiring a pressure; and a tension measuring rod (30) fixedly connected to the sensing part and used for receiving the pressure of a yarn. The tension measuring device is pressed onto the yarn, such that the pressure sensor can perform on-line measurement for the pressure of the yarn on the tension measuring rod without affecting the passing of the yarn, and the yarn tension can be obtained according to the corresponding relationship between the pressure of the yarn on the tension measuring rod and the yarn tension, such that on-line measurement of the yarn tension can be achieved, and the spinning quality is accordingly improved.
展开▼
