Abstract

To search the ability of detect metal cracks by differential susceptibility technology, a sawtooth wave driving source system are needed. This driving source is composed of sawtooth wave generator, control unit, summator and amplifier. And solved the problem of other driving source can’t output sawtooth wave whose frequency and voltage are adjustable. Compared with other driving source, this one can provide high voltage and large current, have higher noise-signal ratio, can complete satisfied to the demand of differential susceptibility detection system. Keywords-differential susceptibility; ATmega16; driving source

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