High pressure transducer
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United States of America Patent
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Mar 17, 1987
Issued Date -
N/A
app pub date -
Feb 15, 1985
filing date -
Feb 7, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A high pressure transducer for transmitting and/or receiving sonic energy, the transducer having a housing with a cylindrical opening, a metallic acoustic window element closing one end of the opening, a cylindrical transducer crystal having one planar surface in engagement with the acoustic window rearward face, a thrust producing compression screw threadably received in the cylindrical opening supplying pressure through dampening means to the crystal rearward face to force the crystal into intimate engagement with the acoustic window, the acoustic window having a thickness of about N times 1/2 of the wavelength of crystal produced sound in the acoustic window, N being the least whole number providing an acoustic window having strength to withstand the pressure to which the transducer is subjected without significant deformation.
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