Dab tsi yog Momentary Push Button Switch

Lub khawm khawm hloov pauv yog lub hloov hluav taws xob uas feem ntau siv rau hauv ntau daim ntawv thov los tswj cov khoom siv hluav taws xob, cov twj paj nruag, thiab cov tshuab los ntawm kev qhib lossis kaw ib ntus hluav taws xob Circuit Court, feem ntau yog cov lus teb rau kev tuav tes ntawm kev hloov. Qhov hloov pauv yog tsim los muab lub sijhawm rau lub sijhawm pib / tawm teeb liab, lossis mem tes, thaum nws qhib lossis tso tawm, nyob ntawm seb hom hloov pauv.

Qhov hloov pauv yog hu ua "momentary" vim tias nws tsuas yog ua haujlwm rau lub sijhawm luv luv thaum nws raug nias, thiab tom qab ntawd nws deactivates txiav tawm thaum nws tawm. Momentary pushbutton keyboards tuaj nyob rau hauv ntau hom thiab ntau thiab tsawg, tab sis lawv txhua tus feem ntau muaj lub caij nplooj ntoos hlav-loaded khawm, ib txheej ntawm kev sib cuag, thiab lub hauv paus qhov chaw nyob.

Lub pob feem ntau yog ua los ntawm cov yas, hlau los yog roj hmab thiab yog mounted ntawm ib tug hlau los yog yas thav duab txuas rau hauv paus. Thaum lub khawm raug thawb, lub caij nplooj ntoos hlav hauv qhov hloov pauv yog compressed, thiab cov ntsiab lus sib cuag raug thawb ua ke, ua kom tiav lub voj voog. Thaum lub khawm tso tawm, lub caij nplooj ntoos hlav rov qab mus rau nws txoj haujlwm qub, ua rau cov ntsiab lus sib txuas sib cais, thiab lub voj voog qhib ib zaug ntxiv.

Muaj ntau hom pushbutton keyboards uas muaj cov yam ntxwv sib txawv, nyob ntawm daim ntawv thov. Qee hom muaj xws li ib ntus, ib txwm qhib (NO), thiab ib txwm kaw (NC). Momentary keyboards feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum muaj cov tswv yim ib ntus, xws li lub tswb nrov, lub suab nrov, lub khoos phis tawj keyboard, lossis lub xov tooj ntawm tes tswj chaw taws teeb.

Ntawm qhov tod tes, ib txwm qhib (NO) keyboards ib txwm qhib thaum lawv tsis nias, thiab lawv kaw ib ntus thaum lawv nias. Nquag kaw (NC) keyboards yog qhov ntxeev ntawm NO keyboards; lawv yeej ib txwm kaw thaum lawv tsis nias, thiab qhib ib ntus thaum lawv nias.

Pushbutton keyboards tuaj yeem raug cais raws li lawv cov txheej txheem. Muaj ob lub ntsiab ntawm lub pob khawm hloov mechanisms: tactile thiab tsis-tactile. Tactile keyboards muaj lub tswv yim tawm tswv yim, uas muab rau tus neeg siv tactile nyem lossis snap thaum lub hloov pauv. Qhov kev tawm tswv yim no muab rau tus neeg siv nrog kev paub tseeb tias qhov hloov pauv tau qhib.

Tsis yog-tactile keyboards, ntawm qhov tod tes, tsis muaj lub tswv yim tawm tswv yim, thiab lawv ua haujlwm ntsiag to. Cov keyboards uas tsis yog tactile feem ntau yog siv rau hauv cov ntawv thov uas tus neeg siv tsis xav tau kev tawm tswv yim tactile, xws li ntawm cov chaw taws teeb tswj lossis cov keyboard.

Nyob rau hauv cov nqe lus ntawm mounting, pushbutton keyboards yuav mounted rau ntawm daim ntawv Circuit Court boards (PCBs), panels, los yog enclosures. PCB-mounted keyboards yog soldered ncaj qha mus rau PCB, thaum lub vaj huam sib luag-mounted keyboards yog mounted rau ib lub vaj huam sib luag siv screws los yog txiv ntseej.

Cov khawm khawm khawm kaw nyob hauv ib lub thawv uas tiv thaiv qhov hloov ntawm plua plav, dej, thiab lwm yam kev phom sij. Cov keyboards kaw feem ntau yog siv nyob rau hauv ib puag ncig hnyav thiab kev siv uas yuav tsum tau muaj kev tiv thaiv los ntawm ib puag ncig.

Zuag qhia tag nrho, momentary pushbutton keyboards yog ntau yam thiab txhim khu kev qha Cheebtsam uas tau siv dav hauv ntau daim ntawv thov, los ntawm cov khoom siv hluav taws xob yooj yim mus rau cov tshuab thiab tshuab. Lawv muab ib qho yooj yim thiab yooj yim-rau-siv interface rau kev tswj cov khoom siv hluav taws xob, thiab lawv muaj nyob rau hauv ntau hom, ntau thiab tsawg, thiab configuration kom haum rau ntau yam kev siv thiab yuav tsum tau.