Laser
Speed Climbing Laser-based hand sensor
06/25/2009 21:10
Synopsis: Based on more test results from the USAC Northeast divisional championships, the IR-based sensors were fairly effective (195 out 200 climbs on the qualifier day worked fine, 5 obviously didn’t). There were some issues getting it running during installation. I needed to rethink the hand sensor. There were 2 problems. One, as I’ve demonstrated in other articles, there are weak or dead IR zones a climber could hit if he didn’t hit it with a flat hand - the sensor would not stop the clock in that case. Two, there were glitchy problems when the long (50ft) cable we made was used from the display to the hand sensors. The behavior was similar to EMI problems though as I was not at the New England competition, I had to surmise based on descriptions I heard. This is the redesign of the hand sensors to fix these two problems before the USAC national climbing competition in Sandy, UT July 10-12, 2009.
Larger images later in the article. Read More...
Larger images later in the article. Read More...
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