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General description
In March 2001, IIHR
commissioned Krypton Electronic Engineering to supply IIHR with a
six-degree-of-freedom (6DOF) contactless motion tracker for upcoming
ship motions research. The motion tracker consists of a precision
camera module containing three infrared cameras, a controller, PC, and
light-emitting diodes (LED's), and space probe. Typically for ship
motions work in the towing tank, three LED's are arranged in a precise
pattern on a rigid target. The target is afixed to the ship model,
and the camera module observes the target/LED's from a suitable distance
such that the target is within the field of view or measurement volume
of the three infrared cameras. The measurement system and Krypton
realtime software act as a displacement measurement machine (DMM) and is
able to track the three translations and three rotations of the object
and target. Measured displacements can be computed or translated
to any position on the object as long as the target is properly
identified or calibrated. With another software package, the
camera unit can be used as a coordinate measurement machine or CMM.
Krypton Electronic Engineering was purchased in April 2005 by Metris but
their products are still available and supported.
System specifications
Built: 2001
Installation: August 2001
Tests: 6DOF contactless
motion tracking
Camera module:
3 infrared cameras
LED's:
1-256
Resolution: 5
mm
Single-point accuracy:
50 mm
Measurement volume:
1 m x 1.2 m @ 2.5 m to 2.6 m x 3.6 m at 6 m from the camera
Data rate: up to
3000
Hz
Analog data: 8
channels
Software:
Krypton v2.1 Rodym DMM realtime |
Company
Metris
Interleuvenlaan 86
B-3001 Leuven, Belgium
Tel: +32 16 74 01 01
FAX: +32 16 74 01 02
e-mail:
info@metris.com
URL:
http://www.krypton-intl.com
URL:
http://www.metris.com
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Measurement sytems
