Second-hand GSM-19 GW
The GSM-19 is an instrument with excellent benefits for subsurface exploration. The Overhauser system offers an order-of-magnitude increase in sensitivity over GEM’s Proton system and matching sensitivities of some alkali devices. We recently decided to sell a second-hand GSM-19 GW to renew our park.
Overhauser magnetometers also provide high absolute accuracy, ruggedness, and reliability – as numerous systems are in operation around the world with an excellent performance record so that the GSM-19 can be counted on in any situation.
The GSM-19 is a standard in many fields, including: mineral exploration, environmental and engineering, pipeline mapping, airborne base station, Unexploded Ordnance Detection, archaeology, magnetic observatory measurements, volcanology and earthquake prediction.
The Overhauser effect occurs when a special liquid (with unpaired electrons) is combined with hydrogen atoms and then exposed to secondary polarization from a radio frequency (RF) magnetic field. The unpaired electrons transfer their stronger polarization to hydrogen atoms, thereby generating a strong precession signal that is ideal for very high sensitivity total field measurements.
GEM’s Overhauser magnetometer/gradiometer also offers much less power consumption than Proton or Alkali Vapour systems so you can perform a whole day’s work on a single charge.
The Overhauser Magnetometer does not require maintenance: it is a robust and effective instrument. It also has environmental specifications, which include an operating temperature of -40°C to +50°C; giving unparalleled performance throughout all survey conditions.
The cables and connectors offer maximum durability and performance. The light weight backpack gives hands-free operation while ensuring a stable, comfortable, and lightweight platform for making measurements.
GPS and Navigation
Along a basic GPS tracking, GEM provides a Navigation feature with real-time coordinate transformation to UTM and local grid. A survey “lane” guidance system with cross track display coupled with automatic end-of-line flag and guidance to the next line allows the operator to navigate seamlessly while carrying out the magnetic survey. Operators can define a complete survey on PC and download points to the magnetometer via RS-232 before leaving for the field.
Second-hand GSM-19 GW
We propose second-hand GSM-19 GW sold with a GPS integrated. This equipment was made in 2012 and is in very good shape. Please do not hesitate to contact us for any further information you may require.