公开(公告)号：US10267702B2

公开(公告)日：2019-04-23

申请号：US14718257

申请日：2015-05-21

Applicant: NXP B.V.

Inventor： Peter Steeneken ,  Jozef van Beek ,  Willem Besling

IPC: G01L25/00 ,  G01L1/10 ,  G01L1/26 ,  G01Q60/24

Abstract: Aspects of the present disclosure are directed to force sensors. As may be implemented in accordance with one or more embodiments, an apparatus includes a force-responsive component having a resonant frequency, and a circuit that compensates for variations with the force-responsive component. The force-responsive component moves in response to an applied force, in accordance with a spring constant that is susceptible to fluctuation. The compensation circuit determines Brownian motion of the force-responsive component at the resonant frequency based on temperature, and generates an output based on the determined Brownian motion and movement of the force-responsive component. Such an output is indicative of force applied to the apparatus.

公开(公告)号：US20150355043A1

公开(公告)日：2015-12-10

申请号：US14718257

申请日：2015-05-21

Applicant: NXP B.V.

Inventor： Peter Steeneken ,  Jozef van Beek ,  Willem Besling

IPC: G01L25/00

CPC classification number: G01L25/00 ,  G01L1/10 ,  G01L1/26 ,  G01Q60/24

Abstract: Aspects of the present disclosure are directed to force sensors. As may be implemented in accordance with one or more embodiments, an apparatus includes a force-responsive component having a resonant frequency, and a circuit that compensates for variations with the force-responsive component. The force-responsive component moves in response to an applied force, in accordance with a spring constant that is susceptible to fluctuation. The compensation circuit determines Brownian motion of the force-responsive component at the resonant frequency based on temperature, and generates an output based on the determined Brownian motion and movement of the force-responsive component. Such an output is indicative of force applied to the apparatus.

Abstract translation: 本公开的方面涉及力传感器。 如可以根据一个或多个实施例来实现的，装置包括具有谐振频率的力响应分量，以及用力响应分量来补偿变化的电路。 力响应部件响应于所施加的力，根据容易变动的弹簧常数而移动。 补偿电路基于温度来确定谐振频率下的力响应分量的布朗运动，并且基于确定的布朗运动和力响应分量的运动产生输出。 这种输出表示施加到设备的力。