The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2011
Filed:
Dec. 21, 2009
Frank Joachim Van Kann, Nedlands, AU;
John Winterflood, Nedlands, AU;
Frank Joachim Van Kann, Nedlands, AU;
John Winterflood, Nedlands, AU;
Technological Resources PTY. Limited, Melbourne, Victoria, AU;
Abstract
A gravity gradiometer is disclosed which has a sensor in the form of bars (and) which are supported on a mounting () which has a first mount section () and a second mount section (). A first flexure web () pivotally couples the first and second mount sections about a first axis. The second mount has a first part (), a second part () and a third part (). The parts (and) are connected by a second flexure web () and the parts (and) are connected by a third flexure web (). The bars (and) are located in housings (and) and form a monolithic structure with the housings (and) respectively. The housings (and) are connected to opposite sides of the second mount section. The bars (and) are connected to their respective housings by flexure webs (). Transducers () are located in proximity to the bars for detecting movement of the bars to in turn enable the gravitational gradient tensor to be measured. First and second feedback controllers are provided for monitoring disturbances of an external platform and an internal platform which mount the gradiometer for producing forces to stabilise the sensor.