Hearing Research, Self-calibration Of Smart Water

The research of auto-calibrate smart-hydrophone is playing a important role in improving the on-line function and the dependability of hydrophone. Base on requirement of hydrophone's smart function .According to the calibration principle of electrostatic actuator and the mechanics of piezoelectric ceramic, this thesis developed auto-calibration method of hydrophone. After referenced to the configuration character of the traditional hydrophone, we designed a smart-hydrophone configuration with electrostatic actuator, which configuration can realize auto-calibration smart function of hydrophone, and developed a hardware and software system for auto-calibration.This thesis will mainly introduce the auto-calibration of hydrophone, the configuration design of auto-calibration smart-hydrophone and the experiment analysis. The full coverage include as follow:1. The principle of electrostatic actuator calibrates hydrophone.2. The piezoelectricity character and work principle of traditional radial polarization column piezoelectric ceramic.3. The design of smart-hydrophone's configuration.4. The development of hardware and software for auto-calibration system.5. Scale the smart-hydrophone's sensitivity and dynamic range in free field.6. Validate the feasibility of the auto-calibration in reverberation field.