Topic: triple sensors - how designed?

Hello,

i often read about triple sensors the last times. Does anyone know, how these are technically designed? Are they also these common rubber (or silicone?) knobs, just with 3 contacts instead of 2 inside? Are they all the same from one factory or vendor-specific?

Thanks

Last edited by groovy (16-08-2014 16:08)

Re: triple sensors - how designed?

I would also like to know more specifics about this.

What i do know is, that the "middle" sensor (the one absent in 2-sensor keyboards) enables fast repetitions of the same note, since the key doesn't need to be completely releasled before playing it again. That's the biggest difference.

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Re: triple sensors - how designed?

delt wrote:

I would also like to know more specifics about this.

What i do know is, that the "middle" sensor (the one absent in 2-sensor keyboards) enables fast repetitions of the same note, since the key doesn't need to be completely releasled before playing it again. That's the biggest difference.

Yes, that is how triple-sensors "logically" work. But does this "mechanically" mean, that the key has to be in  contact with the rubber triple-sensor continuously, while doing fast repetitions?

Re: triple sensors - how designed?

see here:
http://www.casio-europe.com/euro/emi/te...trisensor/

Re: triple sensors - how designed?

Nice find, thank you! It shows, that Casio is using one dual-sensor at the hammer and a separate mono-sensor under the key. I assume all velocity-sensing is done just with the dual-sensor, because every other combination would need a calibration per key.

If I remember correctly, I've never seen a separate mono-sensor on Kawai's triple-sensors technology. Are they doing it the same as Casio?

Thanks

Re: triple sensors - how designed?

http://kawaibg.com/en/product/261/es-7-...board.html

Anyway... it works !!!

Re: triple sensors - how designed?

Luc Henrion wrote:

http://kawaibg.com/en/product/261/es-7-...board.html

Anyway... it works !!!

Ah, good solution, 88 parts instead of 176. And also good there are different existing solutions to choose from.

cheers