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    • 7. 发明专利
    • Distance/speed meter and method for distance/speed measurement
    • 距离/速度计和距离/速度测量方法
    • JP2006313080A
    • 2006-11-16
    • JP2005134980
    • 2005-05-06
    • Yamatake Corp株式会社山武
    • UENO TATSUYA
    • G01B11/00G01C3/06G01P3/36
    • G01B11/026G01S7/4808G01S7/4915G01S7/4916G01S17/325G01S17/58
    • PROBLEM TO BE SOLVED: To measure the distance to the object to be measured and the speed of the object while taking advantage of the laser measurement device of a self adopted type.
      SOLUTION: The distance/speed meter comprises: the semiconductor laser 1; the laser driver 4 making repetitions alternatively the first oscillation interval in which the oscillation wave length is continuously increased and the second oscillation interval in which the oscillation wave length is continuously decreased in the semiconductor laser 1; the photo diode 2 for converting the optical output of the semiconductor laser 1 into the electric signal; the counting means 5-8 for counting the number of pulses based on the interference between the optical output of the semiconductor laser 1 and the return light from the object 11 included in the output of the photo diode 2 in the semiconductor laser 1 for each of the first oscillation interval and for the second oscillation interval; and the operation means 9 for calculating the distance to the object 11 and the speed of the object 11 from minimum oscillation wave length and the maximum oscillation wave length of the semiconductor laser 1 and the count results of the counting means.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:利用自身采用的激光测量装置来测量与待测物体的距离和物体的速度。 解决方案:距离/速度计包括:半导体激光器1; 激光驱动器4在半导体激光器1中交替地重复振荡波长连续增加的第一振荡间隔和振荡波长连续减小的第二振荡间隔; 用于将半导体激光器1的光输出转换为电信号的光电二极管2; 计数装置5-8,用于根据半导体激光器1的光输出与包括在半导体激光器1中的光电二极管2的输出中的物体11的返回光之间的干涉来计数脉冲数, 第一振荡间隔和第二振荡间隔; 以及用于从最小振荡波长和半导体激光器1的最大振荡波长计算到物体11的距离和物体11的速度的操作装置9以及计数装置的计数结果。 版权所有(C)2007,JPO&INPIT