Vibration state control device and control method thereof

Abstract

The invention discloses a vibration state control device and a vibration state control method thereof. The device comprises a digital processor, an isolator, a digital controller, a vibration driver, a vibration device, an acceleration sensor and a human-machine interface; the digital processor transmits a vibration control signal to the digital controller; the digital controller generates a drive signal and phase information thereof, and transmits the drive signal to the vibration driver; the vibration driver drives the vibration device to vibrate; the isolator is used for isolating strong and weak electricity of the digital processor and the digital controller; the acceleration sensor acquires an acceleration signal of the vibration device and inputs the acceleration signal to the digital processor; the digital controller transmits the phase information of the drive signal to the digital processor in a phase synchronous signal form; the digital processor performs phase discrimination on the two paths of input signals to obtain the vibration state of the vibration device; and when the working point of the vibration device is at the position of a resonance curve, the digital processor adjusts the vibration state and the working point of the vibration device. The device and the method have the advantage of efficiently and quickly controlling the vibration state.

Description

technical field [0001] The invention belongs to the technical field of automatic control, is used for the control of a vibration device, and is a vibration state control device and a control method thereof. Background technique [0002] With the development of electronic technology and detection technology, many vibration controllers have added a feedback link in the control process, usually using acceleration or position sensors to sense the amplitude and frequency information of the vibration device, and sending it to a digital processor for processing to adjust the vibration driver. motivational signal. This control method can effectively improve the stability of amplitude and frequency, but it also has the following disadvantages: [0003] 1. In many applications, the quality and damping of the vibration device itself are not stable, which causes the natural frequency of the vibration device to change. Therefore, the sensor needs to collect multiple sets of data to anal...

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Problems solved by technology

[0006] The problem to be solved by the present invention is: the existing feedback control for the vibration device cannot effectively and quickly respond to the impact of the vibration device itself and its application occasions, and the adjustment control accuracy and control speed of the vibration control system cannot meet the requirements

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