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Aurora Field Generators

Five different field generators provide versatile options for generating a measurement volume that is optimized to application workflows and the operative space.

Each FG has a Distinct Form Factor and Mounting Options

Aurora® Field Generators (FGs) emit a low-intensity, varying electromagnetic field that establishes the measurement volume in which the EM sensors’ positions and orientations are tracked. There are five Aurora FGs, each with a distinct measurement volume, form factor, and mounting options to support different OEM navigation system workflows and applications, and setup within the operative space.

The Field Generator works in tandem with the Aurora System Control Unit, Sensor Interface Unit, and Aurora Sensors.

Planar 20-20 Field Generator

The Planar 20-20 FG is a versatile field generator with numerous mounting options that allow it to be easily positioned above or around the patient bed without impeding the physical workflow. The Planar 20-20 FG has the largest measurement volume of all Aurora FGs. This general-purpose FG is commonly used for OEM system navigation applications in interventional radiology, spinal surgery, and ENT surgery.

Feature Detail
Dimensions 200 x 200 x 71 mm
Weight 2.6 kg
Mounting Options four M8 mounting holes, or mounting interface compatible with optional mounting arm

Measurement Volume

Cube: 500 x 500 x 500 mm
Dome: 660 mm dome radius, 480 mm cylinder radius

Planar 10-11 & 10-11H Field Generators

The smallest Aurora field generators, the Planar 10-11 and 10-11H FGs boast a small, lightweight size that supports handheld tracking of localized areas. The 10-11H version has a centre aperture (measuring ø34 mm) that enables the user to run an ablation needle or handheld drill through the FG. The Planar 10-11 and 10-11H FGs can be used in OEM system navigation applications in interventional radiology, and for the Planar 10-11H FG, orthopaedic trauma applications.

Dimensions112 x 97 x31 mm 
Weight 650 g
Mounting OptionsM6 screw mounting hole and 4 mm anti-rotation pin

Measurement Volume

340 mm dome radius
170 mm cylinder radius

Tabletop Field Generator

The Tabletop FG measures just 3.4 cm thick, allowing it to be placed between the patient and the table. This unique placement removes any physical obstruction within the operative space and field of view. The Tabletop FG also incorporates a thin barrier that minimizes tracking distortions caused by conductive or ferromagnetic materials located below it. The Tabletop Field Generator is typically used in OEM system navigation applications in interventional radiology, pulmonology, and surgery.

Dimensions507 x 762 x 34 mm 
Weight13.3 kg 
Mounting Optionsplaced directly on the patient table 

Measurement Volume

420 x 600 mm ellipse
600 mm dome radius

Window Field Generator

The Window Field Generator has an open centre that allows intraoperative fluoroscopy imaging through the FG. Accurate tracking is maintained without the introduction of imaging artefacts. The Window FG is fixed underneath a carbon-fibre table, removing any physical obstruction within the operative space or field of view. The Window FG is available in different operating frequencies: 800 Hz and 3200 Hz, known as the WFG II-8 and WFG II-32, respectively. Both feature high-performance emitting coils that can withstand repeated radiation exposure. The Window FG is commonly used in OEM system navigation applications in electrophysiology and endovascular surgery.

Dimensions555 x 462 x 70 mm
Weight5.2 kg (WFG II-8) and 4.6 kg (WFG II-32) 
Mounting Optionseight M8 tapped holes 

Measurement Volume

600 mm dome radius
250 mm cylinder radius

Aurora 6DOF Reference

Aurora Tools

Find the right Aurora Ready-to-Use Tool to use with your FG.

Request An Information Datasheet

Learn more about Aurora technical specifications and performance capabilities with this 2-page datasheet.

MC – Aurora Datasheet FG
Aurora Datasheet

Legal Disclaimer
NDI tracking and measurement products are general metrology components that can be integrated into customer products, research experiments, and/or as components of medical devices that require precision measurement and tracking. While NDI components and technology can be integrated into original equipment manufacturer (OEM) medical devices, they are not specifically intended for a given application and, as such, have not been developed or manufactured in accordance with medical device standards. It remains the responsibility of the OEM customer or end-user to determine and test the suitability of NDI components and technology for their intended use, including performing any required ethics approval, verification, and validation required to demonstrate suitability and compliance. System-level testing, certification, and validation are the responsibility of the original equipment manufacturer or the applicable end-user and should be completed prior to the use of NDI products or technologies in any application.