Light beam excited piezoelectric vibrator for passive dipole - uses localised incident optical radiant periodically modulated to excite lamina close to resonant frequency
The resonator consists of a quartz lamina (9) whose principal faces are metallised (7,8) to form electrodes. The lamina is suspended by two metallic rods (10,11) joining the middle of the metallisations to a base (12) having two electrical pins (13,14). The assembly is protected by a glass envelope...
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creator | EUGENE DIEULESAINT, DANIEL ROYER ET RICHARD GUEDJ |
description | The resonator consists of a quartz lamina (9) whose principal faces are metallised (7,8) to form electrodes. The lamina is suspended by two metallic rods (10,11) joining the middle of the metallisations to a base (12) having two electrical pins (13,14). The assembly is protected by a glass envelope (15) permeable to radiation. The resonator is excited by an amplitude modulated beam (11) of optical radiation of frequency f. The beam whose source may be a He-Ne laser (1) is modulated by an acousto-optical or electro-optical modulator (2) electrically controlled by a tunable alternating generator (5). A sinusoidal voltage appears at the terminals (13,14) on impact (6) of the light beam with one of the metallisations and when the modulation frequency f approaches the natural resonance frequency of the piezoelectric resonator. The metallisation transforms the optical energy into heat which produces a local dilation of the piezoelectric material.
L'INVENTION SE RAPPORTE A L'EXCITATION DES RESONATEURS PIEZOELECTRIQUE COMPOSES D,ELECTRODES 7, 8, 17, 18 ENCADRANT UNE LAMELLE PIEZOELECTRIQUE.L'INVENTION A POUR OBJET UN PROCEDE D'EXCITATION OPTIQUE D'UN TEL RESONATEUR CONSISTANT A FAIRE INTERAGIR UN FAISCEAU OPTIQUE INCIDENT 4 PORTEUR D'UNE MODULATION PULSATOIRE TEMPORELLE OU SPATIALE AVEC UNE METALLISATION 28 PORTEE PAR LADITE LAMELLE 16, AFIN D'OBTENIR UN REGIME D'OSCILLATION FORCEE DANS LA PLAGE DE RESONANCE DUDIT RESONATEUR.L'INVENTION S'APPLIQUE NOTAMMENT A LA CAPTATION SELECTIVE D'UN RAYONNEMENT MODULE ET A LA REALISATION DE DISPOSITIFS AUTO-OSCILLATEURS. |
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L'INVENTION SE RAPPORTE A L'EXCITATION DES RESONATEURS PIEZOELECTRIQUE COMPOSES D,ELECTRODES 7, 8, 17, 18 ENCADRANT UNE LAMELLE PIEZOELECTRIQUE.L'INVENTION A POUR OBJET UN PROCEDE D'EXCITATION OPTIQUE D'UN TEL RESONATEUR CONSISTANT A FAIRE INTERAGIR UN FAISCEAU OPTIQUE INCIDENT 4 PORTEUR D'UNE MODULATION PULSATOIRE TEMPORELLE OU SPATIALE AVEC UNE METALLISATION 28 PORTEE PAR LADITE LAMELLE 16, AFIN D'OBTENIR UN REGIME D'OSCILLATION FORCEE DANS LA PLAGE DE RESONANCE DUDIT RESONATEUR.L'INVENTION S'APPLIQUE NOTAMMENT A LA CAPTATION SELECTIVE D'UN RAYONNEMENT MODULE ET A LA REALISATION DE DISPOSITIFS AUTO-OSCILLATEURS.</description><language>eng ; fre</language><subject>ACOUSTICS ; ACOUSTICS NOT OTHERWISE PROVIDED FOR ; BASIC ELECTRONIC CIRCUITRY ; ELECTRICITY ; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS ; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL ; MUSICAL INSTRUMENTS ; PHYSICS ; RESONATORS ; SOUND-PRODUCING DEVICES</subject><creationdate>1983</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19830729&DB=EPODOC&CC=FR&NR=2520566A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19830729&DB=EPODOC&CC=FR&NR=2520566A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>EUGENE DIEULESAINT, DANIEL ROYER ET RICHARD GUEDJ</creatorcontrib><title>Light beam excited piezoelectric vibrator for passive dipole - uses localised incident optical radiant periodically modulated to excite lamina close to resonant frequency</title><description>The resonator consists of a quartz lamina (9) whose principal faces are metallised (7,8) to form electrodes. The lamina is suspended by two metallic rods (10,11) joining the middle of the metallisations to a base (12) having two electrical pins (13,14). The assembly is protected by a glass envelope (15) permeable to radiation. The resonator is excited by an amplitude modulated beam (11) of optical radiation of frequency f. The beam whose source may be a He-Ne laser (1) is modulated by an acousto-optical or electro-optical modulator (2) electrically controlled by a tunable alternating generator (5). A sinusoidal voltage appears at the terminals (13,14) on impact (6) of the light beam with one of the metallisations and when the modulation frequency f approaches the natural resonance frequency of the piezoelectric resonator. The metallisation transforms the optical energy into heat which produces a local dilation of the piezoelectric material.
L'INVENTION SE RAPPORTE A L'EXCITATION DES RESONATEURS PIEZOELECTRIQUE COMPOSES D,ELECTRODES 7, 8, 17, 18 ENCADRANT UNE LAMELLE PIEZOELECTRIQUE.L'INVENTION A POUR OBJET UN PROCEDE D'EXCITATION OPTIQUE D'UN TEL RESONATEUR CONSISTANT A FAIRE INTERAGIR UN FAISCEAU OPTIQUE INCIDENT 4 PORTEUR D'UNE MODULATION PULSATOIRE TEMPORELLE OU SPATIALE AVEC UNE METALLISATION 28 PORTEE PAR LADITE LAMELLE 16, AFIN D'OBTENIR UN REGIME D'OSCILLATION FORCEE DANS LA PLAGE DE RESONANCE DUDIT RESONATEUR.L'INVENTION S'APPLIQUE NOTAMMENT A LA CAPTATION SELECTIVE D'UN RAYONNEMENT MODULE ET A LA REALISATION DE DISPOSITIFS AUTO-OSCILLATEURS.</description><subject>ACOUSTICS</subject><subject>ACOUSTICS NOT OTHERWISE PROVIDED FOR</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>ELECTRICITY</subject><subject>IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS</subject><subject>METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL</subject><subject>MUSICAL INSTRUMENTS</subject><subject>PHYSICS</subject><subject>RESONATORS</subject><subject>SOUND-PRODUCING DEVICES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1983</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjcFqAkEQRPfiQWL-oX9gIVH0LqLkkFPwLu1MbdLQOz1Oz4rmk_KV7oIfkENR1KOKmjd_n_L9U-kM7gm3IBWRsuDXoAi1SKCrnAtXK9SNyuwuV1CUbApqaXA4qQVW8XEqKUhEqmS5ygipcBQec0YRixPSO_UWB-XpqtrzlZR7SUxBzTHhArc0LbuCy4AU7otm1rE6Xp_-0tBhf9x9tMh2gmcOSKinw9dyvXxbbzbb99U_Kg_H3VmG</recordid><startdate>19830729</startdate><enddate>19830729</enddate><creator>EUGENE DIEULESAINT, DANIEL ROYER ET RICHARD GUEDJ</creator><scope>EVB</scope></search><sort><creationdate>19830729</creationdate><title>Light beam excited piezoelectric vibrator for passive dipole - uses localised incident optical radiant periodically modulated to excite lamina close to resonant frequency</title><author>EUGENE DIEULESAINT, DANIEL ROYER ET RICHARD GUEDJ</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_FR2520566A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>1983</creationdate><topic>ACOUSTICS</topic><topic>ACOUSTICS NOT OTHERWISE PROVIDED FOR</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>ELECTRICITY</topic><topic>IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS</topic><topic>METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL</topic><topic>MUSICAL INSTRUMENTS</topic><topic>PHYSICS</topic><topic>RESONATORS</topic><topic>SOUND-PRODUCING DEVICES</topic><toplevel>online_resources</toplevel><creatorcontrib>EUGENE DIEULESAINT, DANIEL ROYER ET RICHARD GUEDJ</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>EUGENE DIEULESAINT, DANIEL ROYER ET RICHARD GUEDJ</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Light beam excited piezoelectric vibrator for passive dipole - uses localised incident optical radiant periodically modulated to excite lamina close to resonant frequency</title><date>1983-07-29</date><risdate>1983</risdate><abstract>The resonator consists of a quartz lamina (9) whose principal faces are metallised (7,8) to form electrodes. The lamina is suspended by two metallic rods (10,11) joining the middle of the metallisations to a base (12) having two electrical pins (13,14). The assembly is protected by a glass envelope (15) permeable to radiation. The resonator is excited by an amplitude modulated beam (11) of optical radiation of frequency f. The beam whose source may be a He-Ne laser (1) is modulated by an acousto-optical or electro-optical modulator (2) electrically controlled by a tunable alternating generator (5). A sinusoidal voltage appears at the terminals (13,14) on impact (6) of the light beam with one of the metallisations and when the modulation frequency f approaches the natural resonance frequency of the piezoelectric resonator. The metallisation transforms the optical energy into heat which produces a local dilation of the piezoelectric material.
L'INVENTION SE RAPPORTE A L'EXCITATION DES RESONATEURS PIEZOELECTRIQUE COMPOSES D,ELECTRODES 7, 8, 17, 18 ENCADRANT UNE LAMELLE PIEZOELECTRIQUE.L'INVENTION A POUR OBJET UN PROCEDE D'EXCITATION OPTIQUE D'UN TEL RESONATEUR CONSISTANT A FAIRE INTERAGIR UN FAISCEAU OPTIQUE INCIDENT 4 PORTEUR D'UNE MODULATION PULSATOIRE TEMPORELLE OU SPATIALE AVEC UNE METALLISATION 28 PORTEE PAR LADITE LAMELLE 16, AFIN D'OBTENIR UN REGIME D'OSCILLATION FORCEE DANS LA PLAGE DE RESONANCE DUDIT RESONATEUR.L'INVENTION S'APPLIQUE NOTAMMENT A LA CAPTATION SELECTIVE D'UN RAYONNEMENT MODULE ET A LA REALISATION DE DISPOSITIFS AUTO-OSCILLATEURS.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BASIC ELECTRONIC CIRCUITRY ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS RESONATORS SOUND-PRODUCING DEVICES |
title | Light beam excited piezoelectric vibrator for passive dipole - uses localised incident optical radiant periodically modulated to excite lamina close to resonant frequency |
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