P1I-1 A Novel Magnetic Field Sensor Using Piezoelectric Vibrations

This report presents novel configurations for magnetic field sensing using piezoelectric vibrators, which is based on a simple electromagnetic physics and requires no semiconductor materials. First, we present the principle and a basic configuration of the sensor as well as theoretical estimations of the sensitivity. Second, one of the basic configurations using longitudinal vibration for the proposed principle is prototyped, and its characteristics are evaluated experimentally. As an alternative configuration, a disk vibrator is tested. Other configurations are also suggested