Development of Anti-Cavitation Hydrophone-Study on the Novel Hydrophone with New Cap Structure Titanium Front Plate
internaltional ultrasonics symposium(2018)
摘要
We had been developing the anti-cavitation hydrophone by deposition of hydrothermally synthesized lead zirconate titanate poly-crystalline film on the reverse side of the titanium front plate without damage even by measurement in high intensity ultrasound field with inertial acoustic cavitation. In this hydrophone, when exposed to a powerful ultrasonic sound field of an ultrasonic cleaner in which acoustic cavitation occurs, the front plate, the back plate and the outer conductor which had been adhered with the adhesive peeled off and broke. We have to re-design the basic structure of the robust type anti-cavitation hydrophone to solve this problem. In this study, we made a new type of hydrophone with a front plate and an outer conductor set in by changing the structure of the front plate. This new hydrophone showed durability that does not break even when it is exposed to a high intensity ultrasound sound field in a tank of an ultrasonic cleaner in which acoustic cavitation is occurring. Durability test in the water tank of ultrasound cleaner, the new anti-cavitation hydrophone had no significant decrease in sensitivity even after 14 hours of ultrasound exposure.
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关键词
hydrophone, hydrothermally synthesized lead zirconate titanate, titanium, cavitation, durability
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