Temperature dependence of PA signals detected by a piezoelectric transducer

Toshio Koda, Hisato Ogiso, Sizuka Nakano, Yoshihiko Nagata, Kazushi Yamanaka

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


The amplitude and phase of photoacoustic (PA) signals from a thin plate, pure water, water including ultrafine particles, a 15% solution of Na2HPO4 in water, and a turbid solution were observed by a piezo-PA system as a function of the modulation frequency and temperature. In the case of a thin plate, the PA signals exhibit two kinds of temperature dependences according to the modulation frequency. In the case of the liquid samples, the ultrafine particles are found to enhance the change of PA signals due to the phase transition.

Original languageEnglish
Pages (from-to)649-654
Number of pages6
JournalUltrasonics Symposium Proceedings
Publication statusPublished - 1990
EventProceedings of the IEEE 1990 Ultrasonics Symposium - Honolulu, HI, USA
Duration: 1990 Dec 41990 Dec 7

ASJC Scopus subject areas

  • Engineering(all)


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