PIEZOELEKTRISK KONVOLUSJONSANORDNING FOR AKUSTISKE BOELGER

PIEZOELEKTRISK KONVOLUSJONSANORDNING FOR AKUSTISKE BOELGER

A convolver based on the propagation of acoustic waves at the surface of a piezoelectric solid comprises a piezoelectric substrate, means for exciting two backward-traveling acoustic waves at the frequency f, means consisting of at least two electrodes for collecting the signal at the frequency 2f,...

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Hauptverfasser: GAUTIER, HERVE, MAERFELD, CHARLES
Format: Patent
Sprache:nor
Schlagworte:
ANALOGUE COMPUTERS
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
PHYSICS
RESONATORS
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creator GAUTIER, HERVE
MAERFELD, CHARLES
description A convolver based on the propagation of acoustic waves at the surface of a piezoelectric solid comprises a piezoelectric substrate, means for exciting two backward-traveling acoustic waves at the frequency f, means consisting of at least two electrodes for collecting the signal at the frequency 2f, the signal being produced as a result of nonlinear interaction of the two acoustic waves. The convolver device is connected to one of the two electrodes by means of a plurality of electrical contacts placed lengthwise and at intervals along the axis of propagation of the two interacting acoustic waves which are representative of the electrical signals applied to the two convolver inputs.
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subjects ANALOGUE COMPUTERS
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
PHYSICS
RESONATORS
title PIEZOELEKTRISK KONVOLUSJONSANORDNING FOR AKUSTISKE BOELGER
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