Calibration of PVDF Film Transducers for the Cavitation Impact Measurement
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Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
EDP Sciences
Abstract
This paper describes investigation of the influence of the protective layer thickness on the
calibration sensitivity of PVDF films sensors for the cavitation impacts measurements. The PVDF film sensor
is casted into an aluminium block. The drop ball method is used for the measurement of the relation between
impact force and the voltage detected on the PVDF film sensor. The calibration constants are measured for
three different protective layers thicknesses. Five different ball weights for 400 mm drop height are used to
reach the required impact force range. The ball positions for the evaluation of the impact force are measured
with a high speed camera. The voltage signal detected on the PVDF film clamps was measured with a high
speed digitizer. The measured signals are analysed in LabVIEW Signal Express.
Description
Subject(s)
PVDF sensor, Cavitation, Impact load measurement
Citation
ISSN
2100-014X