Description: Digital drive control algorithm because of its flexibility can improve the Coriolis mass flowmeter performance. Kai Chun for digital drive, this paper model-based analysis and experimental simulation, some positive and negative incentives Kai vibration method of alternating step. The method by tracking detection sensor output signal phase for self-excited alternating positive and negative step excitation, so that flow tube vibration amplitude sustained and reliable rapid increase can be combined with nonlinear amplitude control algorithm and frequency estimation, allows flow Kai Chun tube significantly reduced the time to overcome the limitations of traditional methods of the Kai oscillator.
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