公开(公告)号：US5912457A

公开(公告)日：1999-06-15

申请号：US778064

申请日：1996-12-30

Applicant: Michael McQuaid

Inventor： Michael McQuaid

IPC: G01L1/24 ,  G01L5/14 ,  G01L11/02

CPC classification number: G01L11/02 ,  G01L1/241 ,  G01L5/14

Abstract: A pressure sensor includes two birefringent media, one of which is exposedo pressure to undergo pressure-variable birefringence. Polarized light passes through the birefringent media to be modulated in accordance with the pressure and is then made incident on a photodetector to detect the modulation. The use of two birefringent media provides temperature compensation.

Abstract translation: 压力传感器包括两个双折射介质，其中一个介质承受压力以进行压力可变双折射。 偏振光通过双折射介质以根据压力进行调制，然后入射到光电检测器上以检测调制。 使用两个双折射介质提供温度补偿。