What is the gravity meter?

gravitational meter, also known as a gravimeter, is used to measure gravitational fields on the ground and seas and space. In fact, gravitational meters are accelerometers that measure changing gravity acceleration. As such, they are similar to design and design to other accelerometers, but they are capable of much more sensitive measurements. The differences that must measure across the surfaces of the Earth and the seas are in most cases fractional. Be as sensitive, they are prone to vibrations as noise; However, the ability to process the signal and insulation of vibrations is trying to balance these interference.

Relative gravitational meters are one of the two main categories of gravity meters that create a comparison between gravity levels in multiple places. Accepting the calibration on the spot already measured and then by moving the gravity meter to the second place for further reading gives the ratio of gravity at both points. The most sensitive and reliably accurate relative gravitational meters that are usually based on spring are called super-waterGravitational meters that have a floating supervoli ball Niobium in a stable magnetic field. One such meter in Finland Metsah was so sensitive that he measured the gradually increasing change in surface gravity, because some workers were on a laboratory roof that cleaned snow. After they noticed that there was no change for some time, scientists were informed that snow -off workers were taking a break for tea.

Absolute gravimeters have a gravity measurement method, which includes the acceleration of mapping, while it is constantly attached to the ground, loosely lowered mass in a vacuum to measure matter speed. The air draft on the weight is reduced by determining the air pressure in the gravitational meter chamber to one billion atmosphere. The portable absolute Vita grammaker can measure one part for 1 billion in 24 hours. The tension of the tides, the compression of rocks and the fluctuations of the country on its axis affects the SKThe escape that the country's gravity changes many times during the day. Such measurements have found that the Earth's surface rises in the Canadian northern Manitus, in a delayed response to the removal of a huge ice cover.

Some meters of specific gravity can determine the soil density at depths to determine how much soil strengthening is needed as a bed for laying asphalt roads. Not only soils, but also water and air samples can be measured using a digital gravity meter to achieve weights for changes in water and air and volume in both. Gravity measurements can be carried out on the sea descents using gravitational meters towed deep oceans and create data back on board with ocean bottom measurement.