Determining an Azimuth with a North Seeking Gyro

摘要

Surveyors frequently require an independent means of determining an azimuth. Traditional methods, a magnetic compass reading or stellar observation, suffer from limitations of accuracy or availability. Another possibility is the use of the North Seeking Gyro which overcomes both of these defects. This paper gives a brief description of how the gyro works, effective observing procedures for its use, and results of some field observations made by the Mobile District. The gyro is shown to be an efficient and precise way for obtaining geodetic nort even in situations where other techniques cannot be used. (Author)