#Swim timer clock plus
The thickness must be 0.01 meters plus or minus 0.002 meters, or. The minimum height is 0.9 meters, or 2 feet and 11.43 inches. The minimum width is 2.4 meters, or 7 feet 10.48 inches. The Federation International Nation Association, FINA, governs the exact touch pad dimensions for international competitions. The height range is 1 foot 11 inches to 3 feet. Touch pads are available in widths ranging from 5 feet to 7 feet 11 inches. These pads are particularly useful during relay events to ensure that the swimmer on the block does not leave before the teammate in the water touches the wall. At the start of a race, the moment an athlete leaves the block, the time is recorded. The blocks have embedded in them pressure-sensitive sensors. In addition to recording and displaying the time of the final touch, the touch pad also records and displays split times, each time you touch the wall and make a turn.Īnother type of touch pad is used in the starting blocks and works in a similar fashion. When the embedded sensors get tripped, a signal is sent to a computer and the time is recorded and displayed. The ultra-thin plastic pads are made with sensors that are tripped with the slightest brush of a swimmer's finger, but not so sensitive that splashing water causes the sensors to trip. They are easily attached to both ends of a pool lane and can be removed when no competition is taking place or to perform pool maintenance. Lane touch pads are designed to be portable. Touch pads were not used in Olympic competitions until the 1968 Olympic Games, which were held in Mexico City. In 1962 the National Collegiate Athletic Association, NCAA, approved the use of touch pads for swimming competitions. The prototype was a success and in 1957 the University of Michigan starting using the touch pads for all swim meets. Copper wires were sewn into the pad and connected to a timer. The first prototype was basically a rubber pad filled with silicone. Parkinson solved the problem with his invention. "The judging and the timing were terrible," according to Parkinson the deck was crowded and the timing results were not accurate. During a meet there would be as many as 33 individuals judging, timing and refereeing. In an effort to reduce the number of officials on the pool deck during swim meets, Bill Parkinson, University of Michigan's emeritus professor of physics, invented the swimming touch pad.
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