Joe Mihelcic, President of ClearView Geophysics Inc.,
has pioneered the development of a geophysical data acquisition
and processing system that uses DGPS
(differential ground positioning system)
and an on-board real time navigation computer. The system has proven itself
on large exploration projects carried out over the past decade.
It can be applied to environmental and geotechnical investigations.
Some Specifications: Cesium magnetometer or other instruments located as far as 23m behind standard snowmobile or ATV ( Photo above is from EM survey in DGPS mode ) Navigation track-lines pre-programmed, no existing grid is needed 3-metre station readings, or up to 10 times per second. Custom-built 'dog-sleds' (14ft) or aluminum-frame sleds for rough terrain 'Ruggedized' navigation computer also records GPS and geophysical data - seamless Survey speeds 2-5 metres per second in rough terrain - much faster over fields and flat areas GPS antenna located on sled/cart, magnetometer located at centre or rear of sled/cart Operatorational in exceptionally rough terrain, boulder fields, etc. Capable of collecting gradient magnetics data by simply plugging in extra sensor Capable of adding other instruments (e.g., EM31, EM61, etc.)
Base Station Magnetometer System: Cesium magnetometer readings at 0.5s intervals Magnetometer readings linked to GPS time Real-time differential corrections to rover system using radio-link and repeaters where needed All data are processed and plotted in the field using Geosoft and proprietary software. The system can also be applied using a raft pulled behind a boat over lakes and rivers. Summer land work in open fields using an ATV with a specially designed cart.
System enhancements are ongoing. Call ClearView to discuss how DGPS-Nav can work on your exploration, environmental or geotechnical projects.