Track and Field Tech

By Deane Barker on June 16, 2005

Can We Trust Track & Field Records? – How accurate are they?: Interesting anaylsis of the technology used to time track and field events. This is in the news lately because a Jamaican just broke the 100 meter record by .01 seconds. Not a big margin.

The best systems use a digital camera positioned on the stripe that marks the finish line. This camera has a very narrow field of view and records only the thin slice of space directly above the line. As runners cross the line and into its field of view, the camera takes a rapid series of time-stamped pictures. These create a composite image that shows when each athlete passed through the slice and over the line.

Via Kottke.

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Comments

  1. This week’s Science News mentions a camera that is able to take 10,000 photographs a second. I wonder how many frames per second the track and field people get.

  2. Measuring systems should have become more accurate over time. What should be in questioned is the accuracy of older records.



    Also, the article mentioned an instance when the time measurement was accurate but the distance was not. Again, this should be improving and so modern world record measurements should be the most accurate based on both time and distance.

  3. well asafa is the best in track an field he is the fastest man in the world.an he work very hard to reach where he is.so i think the thing was accurate.

  4. well asafa is the best in track an field he is the fastest man in the world.an he work very hard to reach where he is.so i think the thing was accurate.

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