G4™
120Hz
UPDATE RATE
Less than
10ms
LATENCY
Up to
3
SENSORS (Per Hub)
Up to
8
SOURCES
Freedom of movement
G4™ is a compact, tether-free tracker that allows for uninhibited movement. Harnessing the powerful performance of AC electromagnetics, G4 delivers high-quality 6DOF data via a proprietary RF link back to your computer. With over 10 hours of battery life, imagine the possibilities.
Endless Versatility
Since the system electronics unit (hub) moves with you, there’s no need to remain confined to one space – you can go anywhere! There are several configurations available to scale your tracking area and expand coverage.
Additionally, G4 is compatible with our Standard and Micro Sensors, making it ideal for applications that require smaller sensors for tracking. You can also connect G4 to a 3D digitizing probe and enjoy complete flexibility in your project, perfect for those with large-scale or dynamic environments.
How it Works
G4 is a portable system that’s easy to set up, using a source that emits an electromagnetic field. Finely tuned sensors withing the magnetic field are tracked in full 6 degrees of freedom (6DOF), measuring both position and orientation motion at sub-millimeter accuracy.
Due to the nature of the technology, there is no line-of-sight requirement for continuous tracking. The motion data transports directly to your computer through a proprietary RF link. G4 tracks people and objects through clothes, gloves, and walls, and does not require any special lighting conditions.
EXPAND & EVOLVE
Each G4 hub can track up to three sensors, with an update rate of 120Hz each. The update rate is not impacted by adding additional sensors. Track additional points of interest by increasing the number of hubs (up to nine); expand the tracking range by adding more sources (up to eight).
Since the G4 hub can move freely, users do not have to remain restricted to a set distance determined by the system electronics unit. Instead, users can track motion without any inhibitions – making it the perfect choice for applications that require a dynamic range of motion.
Applications
- Golf Swing Analysis
- Sports Biomechanics
- Virtual Rehabilitation
- Training Systems
- Virtual Reality Applications
- 3D Digitizing
Polhemus Motion Tracking Technical Comparisons
Review technical specifications of all Polhemus trackers:
VIPER™
Patriot™
Patriot™ Wireless
G4™
Liberty™ Latus™
Fastrak®
Update Rate
240Hz (VIPER 4);
960Hz (VIPER 8 & 16)
60Hz
50Hz
120Hz
188Hz (1-8 markers); 94Hz (9-12 markers)
120Hz (divided by number of sensors)
Latency
3ms (at 240Hz);
2ms (at 480Hz);
1ms (at 960Hz)
18.5ms
20ms
10ms
5ms
4ms
Operating Temperature (minimum to maximum)
10°C to 40°C
10°C to 40°C
10°C to 40°C
10°C to 40°C
0°C to 50°C
10°C to 40°C
Operating Voltage
100-240 VAC 50-60Hz
100-240 VAC 50-60Hz
100-240 VAC 50-60Hz
Source: 100-240 VAC; 50/60Hz;
RF Dongle: USB powered 5 volt; 30 ma;
Hub: internal rechargeable battery included
100-240 VAC 50-60Hz
100-240 VAC 50-60Hz
Software Tools
Microsoft Windows®10 GUI;
Unity: Sample open source code included; Linux: Sample open source code included
Microsoft Windows® GUI/Linux® GUI
Microsoft Windows® GUI
Microsoft Windows® GUI/Linux® GUI/Full Linux Support
Microsoft Windows® GUI/Linux® GUI
Microsoft Windows® GUI/Linux® GUI
Interface
USB or RS-422 (both included); dual output available
RS-232 or USB 2.0 (both included)
RS-232 or USB 2.0 (both included)
Proprietary RF link
RS-232 or USB 2.0 (both included)
RS-232 or USB 2.0 (both included)
Number of Sensors
1-16 sensors
1-2 sensors
1-4 wireless markers
3 sensors (per hub)
1-12 wireless markers
1-4 sensors
Static Accuracy – Position
0.015 inches RMS (0.38mm)
0.06 inches RMS (1.52mm)
0.30 inches RMS (7.62mm)
0.08 inches RMS (2.0mm)
0.10 inches RMS (2.54mm)
0.03 inches RMS (0.76mm)
Static Accuracy – Orientation
0.10° RMS
0.40° RMS
1.0° RMS
0.50° RMS
0.50° RMS
0.15° RMS
More Information
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Specifications and other information are subject to change without notice. All brand and product names are trademarks or registered trademarks of their respective holders. The information on this webpage is provided by the respective named manufacturer and is for general information purposes. These data constitute a concrete indication of properties and condition only if they are expressly indicated by EST or have been agreed upon as a condition in writing.