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yuav ua li cas muaj ntau hom uas kov hloov

May 13, 2017

Muaj peb hom kev keyboards hu ua touch keyboards:

Capacitance hloov

Ib tug capacitance hloov yuav tsum tau tsuas yog ib electrode ua num. Lub electrode yuav muab tso tom qab ib tug uas tsis yog-conductive vaj huam sib luag xws li ntoo, iav, los yog cov yas. Tus tes hloov qhov ua hauj lwm uas siv cov lub cev capacitance, ib tug ntawm cov tib neeg lub cev uas muab nws zoo hluav taws xob yam ntxwv. Lub teeb yuav them thiab ntxub nws hlau sab nrauv mus ntes hloov nyob rau hauv capacitance. Thaum ib tug neeg nphav nws, nws yuav tsub kom lub capacitance thiab ua tus tes hloov qhov.

Capacitance keyboards yog muaj muag raws li kev circuits los ntawm ib tug xov tooj ntawm manufacturers. Cov pab kiag li lawm kuj yuav siv tau raws li ib tug luv luv-ntau sib thooj sensor.

Kuj touch hloov

Ib tug kuj hloov yuav tsum tau ob tug electrodes rau lub cev nyob rau hauv kev sib cuag nrog ib yam dab tsi electrically conductive (piv txwv li ib tug ntiv tes) ua hauj lwm. Lawv ua hauj lwm los ntawm tej lub kuj ntawm ob daim hlau. Nws yog li no ntau npaum li cas yooj yim nyob rau hauv kev tsim kho piv rau lub capacitance mus. Tso ib tug los yog ob tug ntiv tes nyob rau cov phiaj achieves ib tug tig rau los yog kaw lub xeev. Tshem cov ntiv tes (s) los ntawm cov hlau daim puv lub ntaus ntawv tawm.

Ib tug siv ntawm ib tug tsis kam touch hloov yuav tsum muaj ob tug Darlington-paired transistors qhov twg hauv lub hauv paus ntawm cov thawj transistor yog kev cob cog rua rau ib qho ntawm cov electrodes.

Tsis tas li ntawd, ib tug N-Channel, li-hom, hlau oxide teb nyhuv transistor yuav siv tau. Nws lub rooj vag yuav tsum txuas nrog rau ib tug ntawm cov electrodes thiab lwm yam electrode los ntawm ib tug tsis kam rau ib tug zoo voltage.

Piezo touch hloov

Piezo touch keyboards yog raws li nyob rau hauv cov neeg kho tshuab dabtsi yog khoov ntawm piezo ceramic, feem ntau lub tsev ncaj qha tom qab ib tug saum npoo. Cov tshuaj no enables touch interfaces nrog txhua yam ntawm cov ntaub ntawv uas. Lwm cov yam ntxwv ntawm piezo yog hais tias nws yuav ua raws li Actuator zoo li. Tam sim no coj mus muag dlaws txua lub piezo nyob rau hauv xws txoj kev uas kov nrog kwv yees li 1.5 N yog txaus, txawm txhav ntaub ntawv zoo li stainless hlau.

Piezo touch keyboards yog muaj lag luam.