Metrological Assurance of Large Torque Measurements

Abstract

The problems of metrological assurance for large torque measuring, reproduced by hydraulic torque wrenches and screwdrivers, are considered. The authors developed the system, principles and procedures for calibrating the PLARAD device, used for calibration of hydraulic torque wrenches up to 1000 N·m. The results of the PLARAD device calibration are presented.

Keywords

• metrological assurance, torque, calibration, hydraulic torque wrench, screwdriver.