Tracker 2 3-D Video Tracker

Specialised Imaging Inc.

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Specialised Imaging Ltd. has announced a new version of its Trajectory Tracker video tracking system to precisely correlate high-speed video data with 3-D visualization and measurement information.

Designed to enable engineers and ballisticians to fully understand the flight behavior of high-speed objects, the SI Tracker 2 builds upon the proven performance of its predecessor with new facility for fully motorized three-axis remote control, pseudo real-time scan correction and greater accuracy, all in a compact, lightweight frame. Designed to house modern high-speed video cameras, the SI Tracker 2 offers high performance, durability and ease of use. It provides consistent and accurate tracking of objects in flight using a computer-controlled triggered rotating mirror positioned in front of a high-speed video camera.

To fully evaluate the failure modes of high-speed objects, it is often necessary to observe their flight performance over a significant proportion of the trajectory. The SI Tracker 2 allows observations to be made of in-flight behavior of high-speed objects over more than 100 m with a tracking accuracy of better than 0.2° over its full scan. The resulting slow-motion record of the test object in flight allows accurate diagnosis of events such as fin deployment and motor burn time as well as calculation of pitch, yaw and spin rate.

Using multiple input triggers positioned down range enables real-time correction of scan speed and position, allowing accurate 3-D tracking of high-speed objects such as Earth re-entry space vehicles that exhibit unpredictable flight behavior.

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Published: September 2011