| 摘要 |
A method and apparatus for measuring the force applied to a fastening bolt by: transmitting a cyclically-repeating energy wave through the fastening bolt; measuring the transit time of the cyclically-repeating energy wave from a first location to a second location; and utilizing the measured transit time to produce a measurement of the force. In a described preferred embodiment, the bolts fastens a seat of a vehicle to the vehicle frame such that the measured transit time provides a measurement of the force applied to the vehicle seat by the seat occupant.
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