THE DYNAMIC TRANSMITTING PROPERTIES OF A PIEZO-ELECTRIC PRESSURE BAR TRANSDUCER | Zendy

FAN LIANG-ZAO | Zendy; XING WEI-FU | Zendy; JIN RUO-BING | Zendy

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THE DYNAMIC TRANSMITTING PROPERTIES OF A PIEZO-ELECTRIC PRESSURE BAR TRANSDUCER

Author(s) -

FAN LIANG-ZAO,

XING WEI-FU,

JIN RUO-BING

Publication year - 1977

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.26.301

Subject(s) - bar (unit) , transducer , acoustics , pressure sensor , interference (communication) , materials science , vibration , dynamic pressure , computer science , physics , mechanics , telecommunications , channel (broadcasting) , meteorology , thermodynamics

The measuring time permitted for a pressure bar transducer is usually limited by the length of the pressure bar itself. To overcome this, we have studied the dyna-mic transmitting behavior of the pressure bar. Our results show that to obtain the correct pressure profile, one must reduce both the radial vibration in the neigh-borhod of the top end of the pressure bar, and the interference of reflected waves from the lower end with the incident wave. This paper presents a design for a pres-sure bar based on the principle of wave velocity dispersion, by which the perfor-mance of the transducer is greatly improved. The chief merit of the present design is that the permitted measuring time is no Longer limited by the length of the pres-sure bar.

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