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.
申请公布号
WO2010061183(A3)
申请公布日期
2011.04.21
申请号
WO2009GB02749
申请日期
2009.11.25
申请人
GRAVITEC INSTRUMENTS LIMITED;TOMLINSON, KERRY, JOHN;VERYASKIN, ALEXEY;GOLDEN, HOWARD;MCRAE, WAYNE