Accurate determination of calibration factor for tidal gravity observation of a GWR-superconducting gravimeter

Autor:	Heping Sun, Hou-tze Hsu, Yong Wang, Xiao-dong Chen
Rok vydání:	2001
Předmět:	Physics Gravity (chemistry) Scale (ratio) Gravimeter Geotechnical Engineering and Engineering Geology Geodesy Fundamental station Stability (probability) Physics::Geophysics Geophysics Gravitational field Calibration Remote sensing Voltage
Zdroj:	Acta Seismologica Sinica. 14:692-700
ISSN:	1993-1344 1000-9116
DOI:	10.1007/bf02718080
Popis:	It is recognized widely nowadays that the superconducting gravimeter (SG) is a kind of best relative gravimeter with high observing precision, good continuity and stability. However, it is necessary to calibrate the direct output (change in voltage) by using scale value (calibration factor) before getting the change of the real gravity field. Studies show that the accuracy of the scale value will influence the late analysis and explanation of the observations. By using absolute gravity measurements of a FG5 absolute gravimeter (AG) at Wuhan international tidal gravity fundamental station (two campaigns each for 3 days) and by using known tidal parameters at the same station, the calibration factors of the SG and their precision are studied in detail in this paper.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ce71796269f3a4077fdcf2b5cce665f5 https://doi.org/10.1007/bf02718080 Zobrazit plný text záznamu Full text from SpringerLink