For example, the earth's gravitational data is measured with the help of gravitational wave sensor or gradiometer by placing it in different instances at different instances of time.
12.
One type, the SQUID Superconducting Quantum Interference Device gradiometer, may have adequate sensitivity, but it needs extreme cryogenic cooling, even if in space, a logistic nightmare.
13.
It is also known as a tilt meter, tilt indicator, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, and pitch & roll indicator.
14.
The interpretation of Tibbers has changed over time, and in the 18th century it was thought to be a geophysical ( using resistivity and a gradiometer ) surveys at Tibbers with funding from Historic Scotland and the Castle Studies Trust.
15.
A second geophysical survey of the surrounding fields to the west and south of the site was organised by the Friends of Gannock Castle, and carried out on 1 December 2006, by engineers, in the form of a Fluxgate Gradiometer survey.
16.
He also tried to invent a gravity gradiometer for rock-density logging, however his first model using mercury and oil columns in glass tubes, showed the obvious fact that any ROTATION is equivalent to a gravity gradient, and a stabilized mounting is required.
17.
A more promising technique, although still in the laboratory, is quantum gradiometry, which is an extension of atomic clock techniques, much like those in GPS . Off-the-shelf atomic clocks measure changes in atomic waves over time rather than the spatial changes measured in a quantum gravity gradiometer.
18.
There are two types of Lockheed Martin gravity gradiometers currently in operation : the 3D Full Tensor Gravity Gradiometer ( FTG; deployed in either a fixed wing aircraft or a ship ) and the FALCON gradiometer ( a partial tensor system with 8 accelerometers and deployed in a fixed wing aircraft or a helicopter ).
19.
There are two types of Lockheed Martin gravity gradiometers currently in operation : the 3D Full Tensor Gravity Gradiometer ( FTG; deployed in either a fixed wing aircraft or a ship ) and the FALCON gradiometer ( a partial tensor system with 8 accelerometers and deployed in a fixed wing aircraft or a helicopter ).