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STRIKING OR MUSICAL WATCH PROVIDED WITH AT LEAST ONE ACOUSTIC RADIATING MEMBRANE AND METHOD FOR MANUFACTURING THE MEMBRANE
STRIKING OR MUSICAL WATCH PROVIDED WITH AT LEAST ONE ACOUSTIC RADIATING MEMBRANE AND METHOD FOR MANUFACTURING THE MEMBRANE
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机译:带有至少一个声学辐射膜的打击或音乐手表及其制造方法
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摘要
A striking watch is provided with an acoustic radiating membrane made of metallic material or amorphous metal. The membrane takes the form of a loop with walls of a certain thickness to be connected by a first edge portion to a middle part of a watch case and by a second edge portion to a bezel fixed to a watch crystal. The bezel connected to crystal is movable with respect to the case middle via the membrane during the vibration of membrane once a sound is generated by a watch striking mechanism in the watch case. The membrane is configured with a wall of a specific thickness in an active region dependent on the mass of the bezel connected to the crystal, to obtain a frequency f0 of a first vibration mode.
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