Ascension Nest of Birds

Ascension Nest of Birds™

The Nest of Birds simultaneously tracks the position and orientation of up to 4 sensors, providing high speed, accurate tracking data. Plugging directly into a USB or RS-232 interface, the Nest's installation CD lets you get up and running fast! Ascension's DC magnetic tracking technology allows the Nest to accurately track with minimal interference by conductive metals.

Click here to download the product brochure (PDF).

Mid- Range Transmitter		Range: Up to +4 ft (1.2 m) coverage	Set-up & Use: Our mid-range transmitter is ideal for desktop applications in environments containing conductive metals.
Extended - Range Transmitter		Range: Up to +10 ft (3.0 m) coverage	Set-up & Use: One or two ERTs* can be operated in tandem to provide full coverage over 10 ft x 15 ft (3 m x 4.5 m) range of operation. Available with mounting stands.

*Requires customer software modifications to implement two ERTs.

Head/Hand/Body Tracking

Virtual Reality

Simulation & Training

Scientific Visualization

Entertainment

Telerobotics/Telepresence

CAVE Environments

Virtual Prototyping

Biomechanical/ Human Factors Analysis

Rehabilitative Feedback & Assessment

3D Graphics Control & Manipulation

February 3, 2003: Ascension Nest of Birds Price Reduction Expands Users' Tracking Option

Pulsed DC magnetic tracking	Virtually no line of sight restrictions. Five times less susceptible to distortion caused by nearby metal than AC technology.
Dedicated processor for each sensor	Highest measurement rates regardless of number of sensors tracked.
USB Interface	Fast output with minimum latency
Multiple configurations	Track up to 4 sensors in real time.
Small chassis with built-in power supply	Compact design takes up minimal room on desktop.
Installation CD	Fast set up with plug-and-play capability.

TECHNICAL
Degrees of Freedom:	6 (Position and Orientation)
Number of Sensors:	Up to 4
Translation range:	± 91.44cm (3 ft) in any direction
Angular range:	All Attitude: ±180° Azimuth & Roll; ±90° Elevation
Static Accuracy Position*:	1.8mm RMS
Static Accuracy Orientation*:	0.5° RMS
Static Resolution Position:	0.5mm @ 30.5cm
Static Resolution Orientation:	0.1° @ 30.5cm
Update rate:	Up to 105 measurements/ sec
Outputs:	X,Y,Z positional coordinates and orientation angles, rotation matrix or quaternions
Interface:	USB or RS-232
Format:	Binary
Modes:	Point
PHYSICAL
Transmitter:	9.6cm cube with 3.05m cable
Sensor:	25mm x 25mm x 20mm cube (or optional 3-button mouse) with 3m cable Weight: 21 g (0.7 oz) without cable. 169 g (6 oz) with 3 m cable. 394 g (13.9 oz) with 10.7 m cable.
Chassis:	166mm x 170mm x 393mm
Power:	110/220 v.
Environment:	Conductive and ferrous metal objects and stray magnetic fields in the operation volume will degrade performance.

*NOTE: Accuracy verified over range from 20.3cm to 76.2cm at constant orientation.

Nest of Birds 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.

EMC:
EN 61326-1: 1998
Safety
EN 61010-1: 1995

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