Results 201 to 210 of about 13,312 (255)
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Piezoelectric transducer and electrophoretic ink display apparatus using piezoelectric transducer
The Journal of the Acoustical Society of America, 2005A first electrode layer 12, a first piezoelectric film layer 13, a second electrode layer 14, a second piezoelectric film layer 15, and a third electrode layer 16 are layered in that order on a substrate 11; these are constrained so as not to expand or contract in a thickness direction and a piezoelectric transducer is constructed thereby.
Kazumasa Hasegawa, Tatsuya Shimoda
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Piezoelectric transducer for piezoelectric loudspeaker
The Journal of the Acoustical Society of America, 1987A piezoelectric transducer for use in a piezoelectric loud speaker includes a metallic plate and a piezoelectric wafer fixed to at least one face of the metallic plate, a first end of the piezoelectric transducer being adapted to be clamped to the frame of the loud speaker and a second end being adapted to be connected to a cone diaphragm in the loud ...
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Lead-Free Piezoelectric Transducers
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency ControlResearch activities on lead-free piezoelectric materials have been ongoing for over 20 years. Generally, the applicability of the main material families is less universal than that of lead-based compositions such as lead zirconate titanate, but in some cases, the corresponding applications have already been identified. Due to the extensive research, it
Ringgaard, Erling +4 more
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Piezoelectric slotted ring transducer
The Journal of the Acoustical Society of America, 2013Analytical treatment of a slotted piezoelectric ceramic ring transducer vibrating in flexure is presented. The mode shape of the slotted ring vibration is determined, and parameters of the equivalent electromechanical circuit of the transducer are calculated.
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Flexure mode piezoelectric transducers
IEEE Transactions on Audio and Electroacoustics, 1971Although flexurally responsive piezoelectric elements have been utilized for a few decades, interest in their utility remains high. This is a result of the ability of such structures to generate high output from sources of low mechanical impedance, or, conversely, to develop large displacement at low levels of electrical excitation. Typically a bending
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Russian Journal of Nondestructive Testing, 2009
The main expressions for the coefficients of electroacoustic transformation and the electric and acoustic impedances of a new type of ultrasonic transducers—induction piezoelectric transducers—have been obtained as functions of their geometric and electromagnetic parameters.
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The main expressions for the coefficients of electroacoustic transformation and the electric and acoustic impedances of a new type of ultrasonic transducers—induction piezoelectric transducers—have been obtained as functions of their geometric and electromagnetic parameters.
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The Journal of the Acoustical Society of America, 1980
John F. Sear, Goeffrey M. Garner
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John F. Sear, Goeffrey M. Garner
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