MEMBRANE hydrophone made from polyvinylidene fluoride (pvdf) for use in the
investigation of fields from medical ultrasonic equipment was reported earlier [l],[2]. This …

A new type of piezoelectric polymer hydrophone for the frequency range above 1 MHz is
described, which consists of a needle, coated with a thin layer of polyvinylidene fluoride. The …

A new form of hydrophone for measuring the spatial and temporal distributions of pressure
within the fields from medical ultrasonic equipment is described. The device comprises an …

Three basic types of membrane hydrophone made from the piezoelectric polymer
polyvinylidene fluoride (PVDF) are described. These have been developed as instruments …

A membrane hydrophone with a 37-/spl mu/m diameter spot poled electrode has been
fabricated on a 4-/spl mu/m-thick film of the piezoelectric copolymer, polyvinylidene fluoride …

me receiving sensitivities of piezoelectric polymer poly-vinylidene fluoride (PVDF)
hydrophones constructed using the spot-poled membrane design are studied. Formation of …

Miniature piezoelectric polymer hydrophones for ultrasonic field characterization in the low
megahertz region have been developed and tested. The principal advantages of these …

It has been argued that due to nonlinear behavior of the polyvinylidene fluoride (PVDF)
element, the uncertainty in hydrophone measurement of very high spatial-and temporal …

Some of the methods, calculations, and problems associated with making hydrophone
measurements in diagnostic ultrasound fields are considered. Several organizations have …

A PVDF membrane hydrophone has been constructed in particular for comparisons of
broadband ultrasound hydrophone calibration methods and of the results obtained by …