MEASUREMENT OF TORQUE IN MICROMOTORS

Jaime I. Hernández-Navarro, Gabriel Ascanio, Leopoldo Ruiz-Huerta, Alberto Caballero-Ruiz

Abstract

This paper describes a dynamometer developed for the measurement of torque of micromotors as a function of the rotational speed. The operating principle of the device is based on that of a typical viscometer. The shaft of the micromotor to be tested is coupled to a small cylinder, which is placed concentrically into a larger cylinder. The motor torque is transmitted from the inner cylinder to the outer one by means of a well-known viscosity fluid. A pneumatic cylinder supports the outer cylinder, so that the test is performed under free-friction conditions and the torque is determined by a lever arm in contact with a load cell.

Keywords

torque, micromotors, pneumatic bearing

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PWC-2006-TC3-020u.pdf

DOI

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IMEKO TC

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

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