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Originally Posted by garyhayenga Dieter,
Could you elaborate on the part of the announcement where it says -
"Dramatically reduces the number of non-registering touches in foil"
How does it does it do this, and by how much?
Any information would be appreciated.
gary hayenga |
Sure. The problem with FIE timing regulations is that the FIE people making the changes don't seem to have any engineering background. All measured requirements in the real world must have tolerances. Thus, while the FIE did just add tolerances to several timings, they still haven't specified "continuous contact" tolerances.
For example, when a foil comes in contact with a lame', the contact is "noisy" or "dirty" with lots of extremely small electrical interruptions. There is no FIE tolerance specification for the size of these "micro breaks." However, many fencers have complained about non-registering touches under the new rules that are the result of the foil tip bouncing along or off the lame' surface, interrupting the valid touch timer.
For the Doha chip, we added noise filter logic to exclude micro-breaks smaller than a specified duration while still adhering to the FIE timings. The exact value that we came up with was the result of a lot of testing--and we wouldn't want to spoil the fun for our competitors by posting these.
The bottom line is that we made sure to honor the FIE's wishes that a majority of flicks will not register, but we also made sure that fencers rarely encounter non-registering touches. We estimate that the frequency of non-registering touches is reduced by about 90%. That's why we call the Doha chip "fencer friendly."
Dieter