| 摘要 |
The position detector uses an acoustic signal conductor, with a uniform signal propagation velocity, extending along the displacement path of the movable object and an acoustic signal source associated with the movable object for providing a clocked acoustic signal with a variable pulse spacing, received by a signal evaluation device (11) coupled to the end of the acoustic signal conductor. The position of the movable object is determined from the propagation time of the clocked acoustic signal received by the evaluation device. |
