Precision Analysis of Gravity Vertical Gradient Measurement Based on CG - 5 Relative Gravimeter

Qing Bin Wang; Rui Zhou; Wen Sun

doi:10.4028/www.scientific.net/AMR.301-303.1036

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 301-303Precision Analysis of Gravity Vertical Gradient...

Precision Analysis of Gravity Vertical Gradient Measurement Based on CG - 5 Relative Gravimeter

Abstract:

CG-5 is new automatic land relative gravimeter developed by Canada Scintrex Company. Gravity vertical gradient can be measured by CG-5. This article mainly aims at precision analysis of the gravity vertical gradient measurement based on CG-5.This paper analyzes the error sources and error propagation formulae. In the end, it shows relation between altitude differences and observation sets in certain accuracy requirement. Results show that the precision of CG-5 vertical gradient measurement is improved when altitude difference and observation set increase. In vertical gradient measurement, 13 observation sets are needed with altitude difference at 2m to obtain the precision of ±20E.

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Periodical:

Advanced Materials Research (Volumes 301-303)

Pages:

1036-1041

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.301-303.1036

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Online since:

July 2011

Authors:

Qing Bin Wang, Rui Zhou, Wen Sun

Keywords:

CG-5, Precision Analysis, Relative Gravity Surveying, Vertical Gradient

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