Rangefinder and method for collecting calibration data

Details Rangefinder and method for collecting calibration data Rangefinder and method for collecting calibration data

2006-05-03

2008-08-19

Evans, F. L (Department: 2877)

Optics: measuring and testing

Range or remote distance finding

Instrument condition testing or indicating

C356S005010

Reexamination Certificate

active

07414707

ABSTRACT:
An apparatus and method for calibrating range measurements are provided wherein calibration data is collected with each range measurement or group of range measurements. The calibration data comprise a plurality of simulated range measurements. In one embodiment, the simulated range measurements are used to analyze errors that vary with time and environmental conditions. Range measurements are calibrated by correlating a measured flight time of a transmitted and reflected laser beam with the simulated range measurements and a relationship between laser beam flight times and target ranges based on the speed of the laser beam.

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