| 摘要 |
<p>The present invention discloses a pulsewave reflection oscillation device for ranging and its method, for measuring distance. In the pulsewave reflection oscillation method, the round trip transmission time between the reference point and the measured point is determined by means of measuring the oscillation period of reflection wave closed loop, the oscillation period is measured using a frequency counter, thus the distance value is obtained in the state of super high precision. Especially in the present invention, the received reflection pulse is used as the triggering of the next emitting pulse, it is quite simple in circuit design and fabrication when carried out, and a very high precision can be reached.</p> |
