The relation between relative shift of Bragg wavelength and the pressure applied on the sensor is derived, and the analytical expression of pressure sensitivity coefficient is also given. 推导了该传感器的压强与布拉格波长相对偏移量之间的关系,给出了该传感器压强响应灵敏度系数的解析表达式。
Compared with the calculated value, the relative error of the sensitivity coefficient is only 0.8? 与计算值相比,灵敏度误差仅为0.8%。
It reaches 131% T when the relative sensitivity coefficient of the collector current of silicon magnetic-sensitive transistor differential circuit is measured in experiment. 实验测试硅磁敏三极管差分电路的集电极电流相对磁灵敏度达到了131%/T。