Title:
GRAVITATIONAL GRADIOMETER
Document Type and Number:
WIPO Patent Application WO/2010/061183
Kind Code:
A3
Abstract:
Apparatus for the measurement of quasi-static gravity gradients comprising: a flexible ribbon held under tension at both ends; sensing means arranged to detect the transverse displacement of the ribbon from an undisturbed position due to the gravitational field acting on said ribbon and to generate a signal representing the displacement; and output means coupled to said sensing means and responsive to said displacement signal to generate an output signal which is a function of the gravitational gradient tensor of the gravitational field; wherein the ribbon has a non- uniform rigidity profile and/or mass profile along its length such that, in use, the displacement response of the ribbon due to the gravitational gradient of the gravitational field is enhanced and/or the displacement response of the ribbon due to the absolute gravitational acceleration of the gravitational field is suppressed.
Inventors:
VERYASKIN ALEXEY (AU)
GOLDEN HOWARD (AU)
MCRAE WAYNE (AU)
GOLDEN HOWARD (AU)
MCRAE WAYNE (AU)
Application Number:
PCT/GB2009/002749
Publication Date:
April 21, 2011
Filing Date:
November 25, 2009
Export Citation:
Assignee:
GRAVITEC INSTR LTD
TOMLINSON KERRY JOHN (GB)
VERYASKIN ALEXEY (AU)
GOLDEN HOWARD (AU)
MCRAE WAYNE (AU)
TOMLINSON KERRY JOHN (GB)
VERYASKIN ALEXEY (AU)
GOLDEN HOWARD (AU)
MCRAE WAYNE (AU)
International Classes:
G01V7/00
Domestic Patent References:
| WO2003027715A1 | 2003-04-03 |
Foreign References:
| CA2233598C | 2006-04-04 | |||
| US4581932A | 1986-04-15 | |||
| US5130654A | 1992-07-14 |
Attorney, Agent or Firm:
DEHNS (10 Salisbury Square, London EC4Y 8JD, GB)
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