公开(公告)号：US3681982A

公开(公告)日：1972-08-08

申请号：US3681982D

申请日：1971-06-15

Applicant: YASKAWA DENKI SEISAKUSHO KK

Inventor： HIRATSUKA MICHIO ,  ISHII JIRO ,  GOTO TADAHIKO ,  TAKEDA ATSUO

IPC: G01L1/12 ,  G01S1/12

CPC classification number: G01L1/127 ,  G01L1/125 ,  Y10S73/02

Abstract: An apparatus and a transducer system for detecting and measuring mechanical stress applied on the transducer composed of at least one magnetic core of laminated silicon steel sheet construction, a plurality of coils wound on the magnetic core, a constant voltage a.c. source connected to these coils, pick-up means for picking up any variation caused in the current flowing through the coils due to the application of a load or stress on the magnetic core, a rectifying means for rectifying the thus pickedup variation in the current, a compensating means for compensating the zero point of the response characteristic of the transducer, a prestress applying means for improving the linearity of the response curve of the characteristics, whereby the magnitude of the load applied on the magnetic core is determined from the reading on a voltmeter or ammeter also included in the transducer system.

Abstract translation: 一种用于检测和测量施加在由层压硅钢板结构的至少一个磁芯，缠绕在磁芯上的多个线圈组成的换能器上的机械应力的装置和换能器系统，恒定电压a.c. 源极连接到这些线圈，拾取装置，用于拾取由于在磁芯上施加负载或应力而流过线圈的电流引起的任何变化;整流装置，用于整流由此引起的变化 电流，用于补偿换能器的响应特性的零点的补偿装置，用于改善特性的响应曲线的线性的预应力施加装置，由此根据读数确定施加在磁芯上的载荷的大小 也包括在换能器系统中的电压表或电流表上。