Hand-held distance-measurement apparatus and system
摘要
The present invention relates to a portable, hand-held distance-measurement apparatus utilizing a laser range finder. The distance-measurement apparatus executes a number of distance-measurement cycles. In each cycle, a capacitor begins charging at approximately the same time that a light pulse is generated. An analog-to-digital converter generates a digital representation of the capacitor voltage at approximately the same time that a reflected light pulse is received. The lowest and the highest digital values are discarded and the remaining digital values are averaged and scaled to produce a distance measurement. A reflective target may be used at a remote location to reflect the light beam back to the distance-measurement apparatus. The distance-measurement apparatus has several power saving features that facilitate convenient battery operation. The distance-measurement apparatus may also have a view finder.
申请公布号
US5933224(A)
申请公布日期
1999.08.03
申请号
US19960706904
申请日期
1996.09.03
申请人
HINES, ROBIN H.;MURPHY, PATRICK J.;GLASSCOCK, MICHAEL R.;GOODMAN, WILLIAM L.;KORBA, ANTHONY R.;HARRIS, STEVEN E.
发明人
HINES, ROBIN H.;MURPHY, PATRICK J.;GLASSCOCK, MICHAEL R.;GOODMAN, WILLIAM L.;KORBA, ANTHONY R.;HARRIS, STEVEN E.