The photonic band gap (PBG) property of a one-dimensional photonic crystal with a defect layer under pressure is studied, accordingly an improved model of pressure sensor is described.
通过研究带缺陷的一维光子晶体受压力后光带隙性能的变化，提出了改进型光子晶体压力传感器的理论模型。
The sensor used in the testing is made of piezoelectricity crystal and it can directly transform the pressure signal into electricity signal. Its output is in proportion to the measured pressure.
压力场测试中所采用的传感器是一种以压电晶体做敏感元件的压力传感器，它可以将压力讯号直接转换成电荷输出，其输出量与被测量压力成正比。
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