GPS-Based Compass System GGC-E101 (Dual Antenna)

Using triaxial rate and acceleration along with a dual antenna GPS system, the Watson GGC provides attitude and GPS-based heading data in a portable case. The GPS Gyrocompass is typically used for applications involving precise positioning, alignment, and orientation.

Features:

  • Portable, Water-resistant Case
  • GPS Heading Reference
  • Latitude, Longitude, Altitude Output
  • Low Cost
  • Rugged, High Reliability
  • Vibration Resistant
  • RS-232 Serial Data Outputs
  • Two Year Limited Warranty
  • Engineering Support
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SKU: GGC-E101 Category:

Description

The Watson GGC-E101 provides attitude and GPS-based heading reference data. Three rate gyros, three accelerometers along with a GPS receiver and up to 65 meters of cabling are all housed within a rugged, water-resistant, portable case. The GGC was designed with portability and a quick set-up in mind. The cabling is stowed in the cover and the GPS antennas easily fold together and drop into the base for storage. This sensor system is a good choice for applications that require accurate alignment to a particular heading. Additional data provided by the GGC include: roll, pitch, and yaw rate, X, Y, and Z accelerations. Leveled accelerometer outputs are also available along with attitude data.

The GGC is intended to be transportable, so durability is important. The sensors in the GGC can survive shocks of up to 500g, and vibrations up to 10g. The entire sensor package fits inside a housing the size of a suitcase. This design allows the GGC to be easily transported and quickly set up in a new location.

The GGC-E101 is used in the energy industry for the orientation and positioning of oil rigs. This sensor system is also useful for the alignment of satellite antennas, alignment and leveling of industrial equipment, and any other application where a portable system with precise orientation is needed.

Applications

  • Land

    • Antenna Alignment
    • Equipmt Alignment
    • Orientation Instr
  • Ocean
    • Oil Rig Location & Orientation

Downloads

Download Spec Sheet (PDF - 435.3 KB)

 

Download Manual (PDF - 511.9 KB)

 

Specifications

Attitude

Range: Bank ±180°
Range: Elevation ±75°
Resolution: 0.02° Binary mode (14 bit)
Accuracy: Static ±0.25°
* Accuracy: Dynamic ±0.5%

GPS Heading

Range: 0° – 360°
Resolution: 0.02° Binary mode (14 bit)
Accuracy: Static ±0.3° Using GPS
* Accuracy: Dynamic ±0.5% ±0.05°/sec (without GPS)

Angular Rate

Range: Roll, Pitch, Yaw ±100°/sec
Resolution: 0.025°/sec Binary mode (14 bit)
Scale Factor Accuracy: 0.5%
Bias: Roll, Pitch, Yaw < 0.1°/sec Digital ASCII
Non-Linearity: < 0.1% Full scale range
Bandwidth: 20 Hz
Noise: < 0.03°/sec rms

Acceleration

Range: X, Y, Z ±10g
Range: Fwd, Lat, Vert ±10g
Resolution: 4mg
Scale Factor Accuracy: 1%
Bias: X, Y, Z < 10mg
Non-Linearity: 0.1% Full scale range
Bandwidth: 3 Hz

GPS Positioning

Range: Latitude ±90°
Range: Longitude ±180°
Range: Altitude 0ft to 21500ft
Resolution: Lat, Long 0.00001 minutes
Resolution: Altitude 2 ft
Accuracy: Lat, Long ±0.6m (with DGPS) ±2.5m (without DGPS)

Environmental

Temperature: Operating -30°C to +70°C
Temperature: Storage -55°C to +85°C
Vibration: Operating 5g rms 20 Hz to 2 KHz
Vibration: Survival 10g rms 20 Hz to 2 KHz
Shock: Survival 500g 10mS ½ sine wave

Electrical

Frame Rate: 71.1 Hz Maximum
Startup Time: Data 5 sec
Startup Time:
Satellite acquisition
5 min Typical
Input Power: 18 to 35VDC 7.0W
Input Current: 240mA @ 28VDC 280mA @ 24VDC
Digital Output: RS-232

Physical

Axis Alignment: < 0.1°
Size: Antenna stowed 24.3″W x 19.5″L x 8.7″H 61.7 x 49.5 x 22.1 (cm)
Weight: 37 lb 16.8 Kg
Connection: MS3112E12-10P Mating: MS3116F12-10S
* Using velocity data with GPS mode on.
Actual accuracy can be calculated as the listed percentage multiplied by the change in value over the entire dynamic maneuver.
Acquisition time for GPS units is typical for the contiguous United States. Acquisition time may differ due to interference in your geographic area.
Including losses using 65 meter cabling.
Specifications are subject to change without notice.
This product may be subject to export restrictions. Please consult the factory.

Additional information

Weight 16.8 kg
Dimensions 49.5 x 61.7 x 22.1 cm

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