MEASUREMENT APPARATUS FOR TESTING AND CALIBRATING

专利名称：MEASUREMENT APPARATUS FOR TESTING

AND CALIBRATING BONE-CONDUCTIONVIBRATORS

发明人：Bengt BERN,Jens BALSLEV申请号：US14225648申请日：20140326

公开号：US20140294186A1公开日：20141002

专利附图：

摘要：A skull simulator tests and calibrates bone-conduction vibrators under realisticoperating conditions. In known skull simulators, the front wall of the casing—and/or

exposed parts of the suspension—have one or more planar surfaces on the front, andthese planar surfaces are thus oriented towards the bone-conduction vibrator when it ismounted on the skull simulator. Such planar surfaces may reflect airborne sound fromthe vibrator housing or may emit sounds themselves when vibrating, and the reflected oremitted sound contributes to resonances are not present when the bone-conductionvibrator is mounted on a human head. In the current design all exposed parts on thefront located outside a coupling surface for connecting the bone-conduction vibrator donot have planar surfaces perpendicular to the main oscillation axis or that otherwise, suchplanar surfaces comprising an acoustic foam having an acoustic dampening effect onsound waves impinging thereon.

申请人：OTICON MEDICAL A/S

地址：Smorum DK

国籍：DK

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