公开(公告)号：US3782187A

公开(公告)日：1974-01-01

申请号：US3782187D

申请日：1972-01-20

Applicant: ASEA AB

Inventor： DAHLE O

IPC: G01L1/12

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

Abstract: A magneto-elastic transducer for measuring mechanical forces is constituted by a laminated core of magneto-strictive sheet metal with tubular channels containing excitation and measuring windings. The sheet metal at least in the operative measuring zone of the transducer has residual mechanical stresses, the average value of the magnitude of these stresses being at least of the same order as the magnitude of the stresses induced in the measuring zone when the transducer is subjected to its rated load. The residual stresses may be produced by heat treatment, cold rolling, drawing, bending, pressing, blasting, radiation or martensite formation.

Abstract translation: 用于测量机械力的磁弹性传感器由具有包含激励和测量绕组的管状通道的磁致密金属板的层叠铁芯构成。 至少在换能器的操作测量区域中的金属板具有残余机械应力，这些应力的大小的平均值至少与当换能器受到的测量区域中感应的应力的大小相同时 到其额定负载。