| 摘要 |
A coupler (8) connects the skull-bone fitted bearing appts. to a measurement body (3,8,9). The weight of the body may be either between 1-1,000 g., or between 10 - 100 g. An indicator (9) directly or indirectly measures the generated power when the connection between the coupler (8) and the body is connected to a test station (11) which receives and records the measurement values. Likewise, connected to the test station is a vibration indicator which measures movements occurring in the body. The body may be connected to an accelerometer. The inner resonance between a spring suspension (2) and the body is selected to be below the relevant frequency range for the hearing appts., pref. below 100 Hz. The measurement body is accommodated in a chassis (16). |
