Abstract
This work presents an experimental current measurement set based on a
Lead Zirconate Titanate (PZT) ceramic for AC (60Hz) current measurement.
The proposed device is built using a PZT rectangular plate ceramic with
one fixed end. A permanent magnet is mounted to the other end of the
plate. The interaction between a magnetic field (B) and the device
creates a mechanical vibration. Due to the piezoelectric effect, a
voltage is presented at the output terminals of the device. This output
is proportional to the magnitude of the current flowing in the wire. We
present experimental results of the AC 60Hz current measurement on the
15-110A. The good sensitivity of the device (approximately 20mV/A) for a
distance of 1.5cm between device and the magnetic B-field source must be
highlighted.
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