Virtual instrument and frequency conversion technology-based brake test system

Brake is widely useful and very important safety assuring equipment. The aim of Brake test system, which is based on visual instrument and frequency changing technology, is to integrative measure and analyze the performance and quality of the brake. This paper mainly introduces the principle, composing, function and features of the brake test system. And from the point of view of the principle of Visual Instrument (VI) technology, a test system, based on the VI and frequency changing technologies and consist of frequency changing drive and control sub-system and measuring sub-one, is constructed. With the test system the performances and braking course could be auto controlled and measured to the brakes which includes disc and drum ones. And the measuring and control software is programmed with the LabVIEW published by American NI Corporation, USA. Then data real time acquisition, processing, displaying and recording will be realized. The test system also has the functions of voltage adjusting, rotating speed control, load regulating, JC value setting, temperature measuring, and braking route and time memorizing and analyzing. It will be very important for meaning and exciting boosting effect to advance quality and capabilities of the brakes and the security of equipments and system which have adopt the brakes.