A03 ソノリアクタ内のキャビテーションの空間分布測定 : チタンパイプおよび水熱合成PZT膜を用いたキャビテーションセンサによる測定(口頭発表)

概要

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The novel hollow, open-ended, cylindrical shaped cavitation sensor using polymer piezo-film with spatial resolution was developed by NPL (National Physical Laboratory). We think this sensor is very creative and useful work. However, we heard it had defect of short lifetime. Then, we proposed the modificated cavitation sensor with loger lifetime. Our cavitation sensor has also similar clyndrical shape as the NPL cavitation sensor. However, we deposited PZT poly-crystalline film hydrothermally on the outer side of Ti cylindrical pipe and covered with acoustic isolator of closed cell foam sheet on the above mentioned hydrothermally deposied PZT film. The deposited PZT film is protected from acoustic cavitaion by Ti cylindrical pipe and the closed cell foam acoustic isolator. We measured the spatial distribution of acoustic cavitation in a water tank of a sono-reactor oparated at 150 kHz. Furthermore, we estimatied the validity of measured spatial distribution data of acoustic cavitation by comperaring with the light emition pattern of sono-chemical luminescence (SCL) in the sono-reactor in this paper.
日本ソノケミストリー学会の論文
2010-10-21