Product Summary:
The vibrating wire crack meter is a kind of non-electrical measurement sensor that is widely valued and widely used at home and abroad. It includes a heat-treated vibrating wire detection element, one end is connected with the vibrating wire, and the other end is connected with a sliding rod and is formed by a stress-relieved spring. As the sliding rod is pulled, the spring begins to stretch and causes the tension of the vibrating wire to increase, and the vibration frequency of the steel wire changes accordingly, and the tension is proportional to the elongation of the spring. Therefore, the change of displacement can be realized by measuring the tension of the steel string, that is, the change of the vibration frequency of the steel string. Since the vibrating wire sensor directly outputs the natural vibration frequency signal of the vibrating wire, it has the characteristics of strong anti-interference ability, little influence by electrical parameters, little zero drift, little influence by temperature, stable and reliable performance, vibration resistance, long life and so on.