| 摘要 |
An acceleration sensor for exercise apparatuses having a signal producer, a signal amplifying and transmitting apparatus and a microprocessor. The signal producer consists of a sensing coil and a permanent magnet. The permanent magnet is axially movable within the sensing coil without contact therewith. Exposure of the permanent magnet to a certain force results in a necessary slide movement. In this way, corresponding signals of different current values are created in accordance with the sliding speed of the permanent magnet and received by the sensing coil. The signal amplifying and transmitting apparatus is responsible for receiving and amplifying the current values sensed by the sensing coil, and the amplified current values are transmitted to the microprocessor. The microprocessor includes built-in programs to process the signals of the amplified current values for determining the acceleration of the object to be measured.
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