Accession Number:

AD0641274

Title:

TEST RESULTS ON GYROTHEODOLITES,

Descriptive Note:

Corporate Author:

INSTITUTE OF MODERN LANGUAGES INC WASHINGTON D C

Personal Author(s):

Report Date:

1966-10-01

Pagination or Media Count:

9.0

Abstract:

Test operation of the instruments have shown that 1 The Gi-B1 gyrotheodolites, which are produced in Hungary, provide for autonomous determination of the azimuths of orienting directions with a mean-square error of 20 sec within 40-60 minutes. 2 The instrument is easy to handle and is simple to operate. The majority of the instruments function flawlessly and yields reliable results however, some of them do not provide for stability of the constant correction of the instrument. Drawbacks in the design of the instruments are the lack of automatic tracking of the position of the resection points, as well as the long time up to 90 minuts required for the power pack to warm up when operating under low-temperature conditions. To date field tests on two experimental models of the Gi-B2 gyrotheodolite have been carried out. Out of 139 runs by these instruments, carried out over a period of 20 days at latitudes of 45-60 deg, the mean-square error in determining the direction from one run was equal to about 10 sec. In the course of transporting the instrument about 3000 km by motor vehicle and about 2000 km in an aircraft, no changes were detected in the rated value of the constant correction. Chilling them twice to temperatures of -30 and -40C did not lead to a reduction in their operating precision. Author

Subject Categories:

  • Geodesy
  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE