Tension transmitter for pole stay wire tension measuring device

The invention relates to a tension transmitter for a pole stay wire tension measuring device. The transmitter comprises a first amplifying device, a second amplifying device, a third amplifying device, a resistor and a capacitor, and a multi-stage amplifier is constructed. Firstly, high gain can be achieved under the situation of using the resistor with lower resistance to reduce the thermal noiseof the resistor; secondly the influence of the noise of power supplying ripple wave of a power supply can be eliminated by using a reference voltage source to supply power for a tension sensor; thenan amplifier with low pass filtering and zero-drift calibration functions is constructed by the third amplifier, the adjustable resistor and the capacitor, and the measuring precision and anti-interference performance of a tension value can be improved; finally the tension transmitter is integrated in a metal housing of the tension sensor, and the tension transmitter has functions of shielding outer high-frequency electrom