公开(公告)号：US3888115A

公开(公告)日：1975-06-10

申请号：US34651673

申请日：1973-03-30

Applicant: TEXAS INSTRUMENTS INC

Inventor： SCHWARTZ ROBERT J

IPC: G01B17/04 ,  G01L1/16 ,  G01B7/16 ,  G01L1/10

CPC classification number: G01B17/04 ,  G01L1/165

Abstract: A strain sensor has a surface wave device deposited on a substrate. The surface wave device is connected into an oscillator circuit oscillating within a predetermined frequency range. A mechanical strain is induced in the substrate to alter the frequency of oscillation of the surface wave oscillator.

Abstract translation: 应变传感器具有沉积在基底上的表面波器件。 表面波器件连接到在预定频率范围内振荡的振荡器电路。 在衬底中感应出机械应变以改变表面波振荡器的振荡频率。