CALIBRATION OF NON CONTACT VELOCITY SENSOR USED IN AUTOMOTIVE INDUSTRY

López Iris, Silva Guillermo, Ruiz Arturo

Abstract

This paper includes a description of the calibration method used at CENAM to calibrate non contact velocity sensors, which are used by the automotive industry for velocity measurement of vehicles, and distance measurement calibration also used to perform odometer testing. The calibration system development at CENAM consists of a rotor steel of 400 mm diameter with an inertial mass that keeps a constant velocity at the system, a photoelectric probe, a stroboscope and a universal frequency counter. The rotor is driven by an electromechanical control. The velocity measurement is performed in the range from 10 km/h to 190 km/h, distance measurements from 50 m to 2 000 m are also carried out. The final obtained results and the associated expanded uncertainty are reported.

Keywords

non contact velocity sensor, frequency counter

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IMEKO-TC22-2014-008.pdf

DOI

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IMEKO TC

TC22 - Vibration Measurement

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