Attention:
Operation of the GT-2A requires experienced staff on board the aircraft.
Summary
The mobile airborne gravimeter combines inertial navigation systems (INS), vertical gravity sensors and global positioning systems (GPS) to measure gravity anomalies related to sub-surface geology and structure. It is combined with a JAVAD DeltaQ GPS Receiver. Power is supplied via an USV and the system is operated via 2 touch panel PCs.
Sensor-Info: aircraft:bt-67:gt2a_sn028, 6810
| Manufacturer | Canadian Micro Gravity (CMG) |
|---|---|
| Model | GT-2A |
| Serial No. | SN028 |
| Type | gravimeter |
Contacts
| Name | Institution | Role |
|---|---|---|
| Graeme Eagles | Alfred-Wegener Institute of Polar and Marine Research | Device Contact |
Associated devices and Specifications
| Name | Model | Serial Number |
|---|---|---|
| JAVAD DeltaQ GPS Receiver | DeltaQ | n/a |
Specifications of GT-2A (without mounting)
Dimension (L x W x H) |
400 x 400 x 600 mm |
|---|---|
Weight |
153.5 kg |
Power Supply |
27 VDC |
Specifications of JAVAD DeltaQ (without mounting)
Dimension (L x W x H) |
109 x 35 x 160 mm |
|---|---|
Weight |
0.6 kg |
Power Supply |
6 - 35 VDC |
Data interface |
serial |
Position
| The gravitymeter is fastened to the cabin floor close to the center of gravity of the aircraft. Electronics and data aquisition are installed in a rack. |
Data logging, storage and archiving
Logged parameter
| Parameter | Sensor Output Type | Unit |
|---|---|---|
| gravity | gravity | mGal |
Rawdata storage on board
During flight GT-2A data are stored on the touch panel PCs.
Data archiving on land
After the flight GT-2A data are downloaded from the PC and are made accessible via the external devices file system of the land Data Managment System (DMS).
Documentation
Also see https://sensor.awi.de/ for calibration certificates of the sensors.