gravity meter
Noun: * An instrument for measuring variations in the gravitational field: A gravity meter is a precise scientific device used to detect and measure tiny differences in the Earth's gravitational pull at different locations.
A gravity meter is used primarily in geophysics and geology. It helps scientists and prospectors map subsurface density variations, which can indicate the presence of mineral deposits, oil and gas reservoirs, cavities, or geological structures.
- Noun:
- The geophysicist used a highly sensitive gravity meter to survey the area for potential mineral resources.
- Measurements from the gravity meter revealed a subtle anomaly, suggesting a dense rock formation below the surface.
- Modern gravity meters are portable and can be used on land, at sea, or from the air.
- Gravity surveying/mapping: The process of collecting data using a gravity meter over a geographic area.
- The company conducted a gravity survey before deciding where to drill.
- Gravimeter (noun): This is a direct synonym and alternative name for a gravity meter.
- The reading from the gravimeter was consistent with the seismic data.
- Gravimeter: An instrument for measuring gravitational force.
The term "gravity meter" refers specifically to the instrument itself. The act of measuring gravity is called "gravimetry," and the person or science involved is a "gravimetrist" or the field of "gravimetry." The device operates by measuring the acceleration due to gravity (g), often by observing the period of oscillation of a mass or using superconducting technology.
- a measuring instrument for measuring variations in the gravitational field of the earth