STUDY ON REFERENCE TORQUE WRENCH TESTED BY DEADWEIGHT TORQUE STANDARD MACHINE

H. Cheng, J. Z. Yao, W. B. Wen, B. H. Ma, W. J. Huang
Abstract:
The reference torque wrench is usually calibrated and verified on the reference torque standard machine, then traceability to the deadweight standard machine. This paper describes the method of directly calibrating and verifying the reference torque wrench on the deadweight torque standard machine. Specially tool and adapters are designed, the arm length can be adjusted, and the installation position can be changed according to needs, which fully meets the requirements of German DKD-R 3-7 and Chinese calibration guideline JJG 1103:2014. The differences and similarities between Chinese and German calibration methods are also compared and discussed.
Keywords:
reference torque wrench; JJG 1103:2014; traceability of reference torque wrench
Download:
IMEKO-TC3-2022-060.pdf
DOI:
10.21014/tc3-2022.060
Event details
IMEKO TC:
TC3
Event name:
TC3 Conference 2022
Title:

24th Conference on the Measurement of Force, Mass and Torque (together with the 14th TC5 Conference on the Measurement of Hardness, the 6th TC16 Conference on Pressure and Vacuum Measurement, and the 5th TC22 Conference on Vibration Measurement)

Place:
Cavtat-Dubrovnik, CROATIA
Time:
11 October 2022 - 13 October 2022