H - Electricity – 04 – R
Patent
H - Electricity
04
R
H04R 9/06 (2006.01) B06B 1/04 (2006.01) H04R 1/44 (2006.01) H04R 7/02 (2006.01) H04R 7/12 (2006.01) H04R 11/02 (2006.01)
Patent
CA 2192070
A high gain acoustic transducer is formed of a voice coil and a magnetic material housed within a transducer housing. The transducer housing includes two symmetrical dome halves formed of a flexible material. Vibrations of the transducer induce a current in the voice coil as the magnetic material is caused to translate relative to the voice coil. Alternatively, electrical signals applied to the voice coil induce vibrations in the transducer. The voice coil is supported by a first of the two dome halves by way of a first support assembly, and the magnetic material is supported by a second of the two dome halves by way of a second support assembly. The first and second support assemblies are positioned against similarly- dimensioned portions of the first and second dome halves, respectively. Resonating surfaces of the two dome halves are of substantially similar dimensions. The housing forms a watertight enclosure, and the transducer may be utilized in underwater applications.
Tranducteur acoustique (200) à gain élevé constitué d'une bobine mobile (218) et d'une matière magnétique (238) logées dans un boîtier (202) de transducteur qui est lui-même (202) constitué de demi-dômes symétriques souples (204, 206). Les vibrations de la matière magnétique (238) du tranducteur (200) induisent un courant dans la bobine mobile (218). Dans une variante, des signaux électriques appliqués à la bobine mobile (218) induisent des vibrations dans le transducteur (200). La bobine mobile (218) et la matière magnétique (238) sont respectivement supportées par les premier (204) et deuxième (206) demi-dômes au moyen de premier (214) et deuxième (232) ensembles de support respectifs. Le boîtier (202) forme une enceinte étanche à l'eau et par conséquent on peut utiliser ce transducteur (200) dans des applications subaquatiques.
Fenner Thomas Clark Jr.
Gowling Lafleur Henderson Llp
LandOfFree
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