Patent ID: 7823449

Claim:
A gravity gradiometer for measuring components of the gravity gradient tensor, comprising: at least one sensor bar for movement in response to the gravity gradient; a transducer for measuring the movement of the sensor bar to provide a measure of at least one component of the gravity gradient tensor, a housing for supporting the sensor bar; and a flexure web element formed separate to the housing and the sensor bar and having a flexure web, the flexure web element being connected to the sensor bar and the housing to support the sensor bar in the housing for pivotal movement about the flexure web, wherein the flexure web element has a double dove-tail configuration with a cut separating the dove-tails of the double dove-tail configuration, except for the location of the flexure web, the housing having a dove-tail channel and the sensor bar having a dove-tail channel for receiving the flexure web element to thereby connect the flexure web element to the housing and the sensor bar.