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gravimeter

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
gra·vim·e·ter (gr-vm-tr, grv-m-)
n.
1. See hydrometer.
2. An instrument used to measure variations in a gravitational field.

gra·vime·try (gr-vm-tr, gr-) n.


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The properties can include magnetic total field (from which magnetic susceptibility can be derived) measured by a magnetometer, radio-element emission measured by a gamma-ray spectrometer, density variations measured by a gravimeter, visible and infrared spectral reflectance measured by various optical and infrared sensors, emitted heat measured by a thermal radiometer, microwave backscatter by radar, and terrain height measured by an altimeter or extracted from air photos.
[FIGURE 14 OMITTED] [FIGURE 15 OMITTED] In the case of Artyom Vitouchkine's and my most recent absolute gravimeter [12], a cam-based instrument that will be described later, this co-placement of the center of mass and optical center must be done even more precisely.
This gravimeter offered an ideal way to look for subtle motions of Earth's surface.
 
 
 
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