公开(公告)号：US3678378A

公开(公告)日：1972-07-18

申请号：US3678378D

申请日：1969-03-28

Applicant: NAT RES DEV

Inventor： TROTT JOHN JAMES ,  GRAINGER JAMES WILLIAM

IPC: G01G7/06 ,  G01L1/14 ,  G01L9/00 ,  G01R27/26 ,  H01G7/00

CPC classification number: G01L9/0005 ,  G01G7/06 ,  G01L1/144

Abstract: A capacitor is described, the capacity of which varies with pressure applied thereto. The capacitor may have sheet metal electrodes separated by natural rubber layers, one at least of the electrodes being perforated so that when pressure is applied to the capacitor the rubber can deform and the electrodes can move closer together. The capacitor may be connected in a bridge circuit which then gives an output dependent on the pressure applied. The capacitor is useful in measuring wheel and axle loads.

Abstract translation: 描述了电容器，其电容随施加压力的压力而变化。 电容器可以具有由天然橡胶层分开的金属片电极，至少一个电极被穿孔，使得当压力施加到电容器时，橡胶可以变形并且电极可以更靠近地移动。 电容器可以连接在桥式电路中，桥式电路然后根据所施加的压力给出输出。 电容器可用于测量车轮和车轴负载。