Signal Acquisition and Dynamic Self-tuning Algorithm Implementation for Intelligent Instrument

The key problems of intelligent instrument in the signal acquisition process is a long-term stable and reliable operation level. The self-tuning algorithm proposed in this paper is a kind of intelligent instrument signal acquisition, solving linear error caused by system drift. The intelligent instrument can collect multichannel industrial common analog signal acquisition. Two different reference voltage should be collected for each channel signal, which is used to realize the selftuning function of the measurement in the instrument.