Study on high speed sampling and processing of arc dynamic image for low voltage apparatus

A method of observing electrical arc movements for developing and producing high performance low voltage apparatus is presented. In hardware design, high frame rate CCDs and a straight fiberscope are used as the image sensor, and an advanced system of testing high speed arc images and high speed data transfer with RS-422A has also been designed. Using this testing system, the analogous electrical arc image can be converted into digital image for convenience of computer processing. With the high speed DSP (TMS320C40) and memories as the core of the testing system, the interface of the high rate data buffer between the computer and the CCD camera has been implemented.