Strain gauge with high temperature performance

The invention discloses a strain gauge with high temperature performance. The strain gauge comprises a plurality of sensitive grids, two sides of each sensitive grid are respectively connected with a bonding pad, all the sensitive grids and the bonding pads jointly form a Wheatstone bridge, the center of each bonding pad is provided with a soldering tin point, a copper layer is arranged between the soldering tin point and the bonding pad, and the areas of the copper layers of the bonding pads are the same. And the resistance change of the bonding pad copper plating strain gauge caused by the change of the environment temperature is avoided, so that the temperature performance of a sensor or a measuring component is improved. 本发明公开了一种高温度性能的应变计，包括多个敏感栅；每个敏感栅两侧均连接有一个焊盘，所有敏感栅和焊盘共同组成惠斯通电桥，每个焊盘的中心设置有焊锡点，焊锡点和焊盘之间设置有铜层，每个焊盘的铜层面积相同。避免了焊盘镀铜应变计随着环境温度变化引起的电阻变化，从而提升传感器或测量元器件的温度性能。