Notifications
Clear all
Search result for: id10=WA 0859 3970 0884 RAB Renovasi Paving Grass Block Kotak Terpercaya Kalibawang Kulon Progo
| # | Post Title | Result Info | Date | User | Forum |
| Why you Need a Magnetometer Base Station | 6 Relevance | 2 years ago | Gretchen Schmauder | Application | |
| Your need of a magnetometer base station like the G-862RBS depends on the objective of the survey. If one is performing a geologic survey to investigate deep structure (exploration for mineral deposits, oil/gas, geology) then the wavelengths of the "target" body are typically “long” (long in meters, therefore long in data acquisition time). The rate at which the Earth's natural magnetic field responds to interaction with the solar wind is also typically many seconds to minutes (diurnal variations). Since the geologic and diurnal variations are of similar wavelengths, a geologic mag survey usually requires a base station. Please read the introductory sections of the Applications Manual for Portable Magnetometers offered on our website for more details. If you are moving fast (fast in the sense of a brisk walk, ~1m/s) and looking for small targets (UXO, archaeological artifacts, environmental targets like drums, pipes, etc.) then you are “up and over” them in a matter of seconds and typically the earth’s field does not change in this time frame. So there is less need for a base station for these type surveys. Of course, it never hurts to have a base station running and if you are surveying over multiple days, having a reference station will allow easier “block leveling” of multiple day surveys. | |||||
| How difficult is it to manually tow the OhmMapper? | 6 Relevance | 2 years ago | Gretchen Schmauder | Application | |
| It is easy for a healthy, fit person to tow the OhmMapper on flat dry ground or pavement. It is more difficult on Grass or other surfaces where more friction is present. Towing the OhmMapper up hill is, of course, more difficult. The OhmMapper can be towed with a vehicle. However, a tow adaptor is required that will release the array in case a receiver cable is snagged on something in the tow path. A connector can be broken if it is snagged and towed by a vehicle but the tow adaptor is not required when it is manually towed because a person cannot exert enough force to break the connector under normal operating conditions. | |||||
