Strain gauge for load measurement with universal joint used to connect gauge to stressed member, and typically threads of same hand and differing pitch used for adjustment

摘要

Disclosed is a load measurement device for measuring the load on a load member, the device including, a strain sensor (1) attached to the load member by a locating means, and a calibration arrangement located between one or both ends of the strain sensor and the location means, and the calibration arrangement including a first thread on a first thread member (4) and a second thread on a second thread member (6) wherein the first and second threads are oriented in the same direction and the first and second threads have different pitches to one another, and a connecting member with threads at either end of said connecting member commensurate with the first and second threads formed within the first and second thread members.