Geophysical Instruments

NATO Supply Class 6655 is a classification within NATO Supply Group 66, which is dedicated to Instruments And Laboratory Equipment. Specifically, NATO Supply Class 6655 focuses on Geophysical Instruments.

Geophysical instruments are used to study and measure various physical properties of the Earth, such as its magnetic field, gravitational field, seismic activity, and electrical conductivity. These instruments play a crucial role in geophysical exploration, research, and monitoring.

Some examples of geophysical instruments that fall under NATO Supply Class 6655 include:

1. Seismographs: These instruments are used to measure and record seismic waves caused by earthquakes or other sources. They help in studying the Earth's internal structure and seismic activity.

2. Magnetometers: Magnetometers are used to measure the strength and direction of the Earth's magnetic field. They are essential in geophysical surveys and mapping magnetic anomalies.

3. Gravimeters: Gravimeters are instruments used to measure variations in the Earth's gravitational field. They are used in geophysical surveys to study subsurface density variations and locate underground resources.

4. Resistivity Meters: These instruments measure the electrical resistivity of the Earth's subsurface. They are used in geophysical surveys to identify variations in subsurface composition and locate groundwater resources.

5. Ground Penetrating Radars (GPR): GPR systems use radar pulses to image the subsurface. They are used in geophysical investigations to detect buried objects, map geological structures, and locate underground utilities.

These are just a few examples of geophysical instruments covered under NATO Supply Class 6655. The classification helps in organizing and categorizing these instruments for procurement and logistical purposes within NATO member countries.