Hybrid torque standard machine for 1 kN·m developed in CENAM

D. Ramirez-Ahedo, J. C. Torres-Guzman, F. Martinez-Juarez

Abstract

The torque laboratory at the Centro Nacional de Metrología in Mexico (CENAM) started operations in 1997 with the design, built up and set up of a torque transfer standard machine for 2 kN&middot;m (TTSM-2kN&middot;m). Since that time, a total of five torque standards have been developed at CENAM. Two of them realize the quantity via the primary method (dead weights applied in a lever arm of a well known length) in the measuring ranges of 2 kN&middot;m and 1 kN&middot;m. The other three transfer standard machines are in the ranges from 20 N&middot;m and 2 kN&middot;m, and the last one is a TTS machine which is in the set up stage, with a range up to 20 kN&middot;m.<br /> This paper gives general information about the design, build up and set up of the torque standard machine up to 1 kN&middot;m which has a dual function, this is, realizing the quantity with a primary torque standard method (PTSMe) and/or disseminating it with a torque transfer standard method (TTSMe); depending on the type of calibration one wishes to perform.

Keywords

torque, hybrid torque standard, torque primary standard, torque transfer standard, torque calibration systems

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IMEKO-TC3-2007-090u.pdf

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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