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Magnetic tracker with an electronics unit powered by the ISA bus on legacy computers.

pcBIRD is a general-purpose motion tracker suitable for many applications. Biomedical references in this document are examples of what medical companies have done with Ascension trackers after obtaining all necessary medical certifications. Ascension trackers are not certified for use in medicine without the end user/OEM complying with all pertinent FDA/CE regulatory requirements.


  • Head/Hand/Object Tracking
    • Virtual Reality
    • Telerobotics/Telepresence
    • Simulation & Training
    • Scientific Visualization
    • Entertainment
  • Biomechanical/ Human Factors Analysis
  • Rehabilitative Feedback & Assessment
  • 3D Reconstruction of Ultrasound Images
  • Medical Imaging
  • Surgical Planning & Intervention
  • 3D Graphics Control & Manipulation


Pulsed DC magnetic tracking
  • Five times less susceptible to distortion caused by nearby metal than AC technology.
Easy expandability
  • Track multiple sensors simultaneously without reduction in measurements.
Powered by the ISA bus on your personal computer
  • Outputs Available on ISA Bus without I/O Delays.
Two tracking range options: Standard or Extended Range Transmitters
  • Tracks at ranges up to 3.05 meters.



* pdficon.gif (224 bytes) pcBIRD brochure



Degrees of Freedom: 6 (Position and Orientation)
Translation range: ±1.22m* (±3.05m optional) in any direction
Angular range: All Attitude: ±180° Azimuth & Roll; ±90° Elevation
Static Accuracy
1.8mm RMS
Static Accuracy
0.5° RMS
Static Resolution Position: 0.5mm  @ 30.5cm
Static Resolution Orientation: 0.1° @ 30.5cm
Measurement rate: Up to 144 measurements/second
Outputs: X,Y,Z positional coordinates and orientation angles, rotation matrix or quaternions
Interface: ISA-Bus
Format: Binary
Modes: Point or stream
Transmitter: 9.6cm cube with 3.05m cable or extended range transmitter: 30.5cm cube with 6.1m cable
Sensor: 25.4mm x 25.4mm x 20.3mm cube (or optional 3-button mouse) with 3.05m or 10.7m cable
8mm Sensor: 18mm x 8mm x 8mm, 3m cable
ISA Card: Standard full length board (one per sensor to be tracked)
Power: Uses PC's power supply
Environment: Metal objects and stray magnetic fields in the operation volume will degrade performance.
* Accuracy verified over range from 20.3cm to 76.2cm


Price: Ask


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