A gravimeter is an instrument used to measure gravitational acceleration or the strength of the gravitational field at a specific location. Gravimeters can detect small variations in gravity caused by geological structures, density changes within the Earth's crust, or even changes due to human activities. There are different types of gravimeters, including: 1. **Absolute Gravimeters**: These measure the gravitational acceleration directly by dropping a mass and measuring the time it takes to fall.
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