公开(公告)号：US20170003186A1

公开(公告)日：2017-01-05

申请号：US14754788

申请日：2015-06-30

Applicant: STMICROELECTRONICS S.r.I.

Inventor： Alessandro MOTTA ,  Alberto PAGANI ,  Giovanni SICURELLA

IPC: G01L9/00 ,  G01L9/06

CPC classification number: G01L9/0052 ,  G01L9/065

Abstract: A pressure sensor device is to be positioned within a material where a mechanical parameter is measured. The pressure sensor device may include an IC having a ring oscillator with an inverter stage having first doped and second doped piezoresistor couples. Each piezoresistor couple may include two piezoresistors arranged orthogonal to one another with a same resistance value. Each piezoresistor couple may have first and second resistance values responsive to pressure. The IC may include an output interface coupled to the ring oscillator and configured to generate a pressure output signal based upon the first and second resistance values and indicative of pressure normal to the IC.

Abstract translation: 压力传感器装置应位于测量机械参数的材料内。 压力传感器装置可以包括具有环形振荡器的IC，其具有具有第一掺杂和第二掺杂压电电阻耦合的反相器级。 每个压敏电阻耦合可以包括彼此正交布置的具有相同电阻值的两个压敏电阻。 每个压敏电阻器耦合可以具有响应于压力的第一和第二电阻值。 IC可以包括耦合到环形振荡器并被配置为基于第一和第二电阻值并指示与IC垂直的压力产生压力输出信号的输出接口。