Dab tsi ntawm cov vijtsam kov muaj?

Raws li hom sensor, lub vijtsam kov tau muab faib ua plaub hom: hom infrared, hom resistive, nto acoustic yoj hom thiab capacitive touch screen.
Qhov zoo thiab qhov tsis zoo ntawm plaub lub vijtsam kov:
1.Lub tshuab hluav taws xob infrared kov lub vijtsam yog pheej yig, tab sis nws cov thav duab sab nrauv yog qhov tsis yooj yim, yooj yim los tsim teeb pom kev cuam tshuam, thiab distorted nyob rau hauv cov ntaub ntawv ntawm nkhaus;
2.Lub capacitive technology kov npo muaj lub tswv yim tsim nyog, tab sis nws cov duab distortion teeb meem yog qhov nyuaj rau kev daws teeb meem;
3.Qhov chaw ntawm cov khoom siv thev naus laus zis kov lub ntsej muag yog qhov tseeb, tab sis nws tus nqi siab heev, thiab nws ntshai tsam khawb thiab puas;
4.Qhov saum npoo acoustic yoj kov npo daws ntau yam tsis xws luag ntawm lub vijtsam kov dhau los.Nws yog qhov tseeb thiab tsis yooj yim rau kev puas tsuaj.Nws yog haum rau ntau lub sijhawm.
Lub infrared kov npo yog nruab nrog lub rooj tsav xwm Circuit Court board nyob rau hauv pem hauv ntej ntawm cov zaub, thiab Circuit Court board yog teem nrog infrared emission tubes thiab infrared txais hlab nyob rau plaub sab ntawm lub screen, tsim ib tug kab rov tav thiab ntsug infrared matrix nyob rau hauv ib-rau. - ib tsab ntawv.

Thaum tus neeg siv kov lub vijtsam, tus ntiv tes yuav thaiv cov kab rov tav thiab ntsug infrared rays dhau los ntawm txoj haujlwm, yog li txoj haujlwm ntawm qhov kov ntawm lub vijtsam tuaj yeem txiav txim siab.

Txhua yam khoom kov tuaj yeem hloov cov duab hluav taws xob infrared ntawm qhov taw tes kov kom paub txog kev ua haujlwm ntawm lub vijtsam kov.

Lub vijtsam kov infrared tiv thaiv tam sim no, hluav taws xob thiab hluav taws xob zoo li qub, thiab tsim nyog rau qee qhov hnyav ib puag ncig.

Nws cov txiaj ntsig tseem ceeb yog tus nqi qis, kev teeb tsa yooj yim, tsis muaj daim npav lossis lwm yam tswj hwm, thiab tuaj yeem siv rau hauv computers ntawm ntau qib.

Tsis tas li ntawd, vim tias tsis muaj cov txheej txheem them nyiaj capacitor thiab tso tawm, cov lus teb ceev nrawm dua li ntawm hom capacitive, tab sis qhov kev daws teeb meem qis dua.

Cov txheej txheej sab nraud ntawm lub vijtsam tiv thaiv feem ntau yog lub vijtsam muag, thiab cov neeg sab hauv txuas nrog nce thiab nqis los ntawm nias.Cov txheej sab hauv yog nruab nrog cov khoom siv lub cev oxide hlau, uas yog, N-hom oxide semiconductor - indium tin oxide (Indium Tin Oxides, ITO), kuj hu ua indium oxide, nrog lub teeb xa hluav taws xob ntawm 80%.ITO yog cov khoom siv tseem ceeb siv hauv ob qho tib si kov cov ntxaij vab tshaus thiab cov ntxaij vab tshaus capacitive.Lawv qhov chaw ua haujlwm yog ITO txheej.Nias txheej txheej nrog lub ntsis ntiv tes los yog ib yam khoom, kom cov zaj duab xis nto yog concavely deformed, thiaj li hais tias ob lub puab txheej ntawm ITO sib tsoo thiab ua hluav taws xob rau qhov chaw.Mus rau lub coordinates ntawm lub pressing point kom paub txog kev tswj.Raws li tus naj npawb ntawm cov kab hlau lead-tawm ntawm lub vijtsam, muaj 4-xaim, 5-xaim thiab ntau-xaim, qhov pib qis, tus nqi kuj pheej yig, thiab qhov zoo dua yog tias nws tsis cuam tshuam los ntawm plua plav, kub thiab av noo.Qhov tsis zoo kuj pom tseeb.Cov yeeb yaj kiab sab nrauv yog khawb tau yooj yim, thiab cov khoom ntse tsis tuaj yeem siv los kov qhov screen.Feem ntau, kev kov ntau yam tsis tuaj yeem ua tau, uas yog, tsuas yog ib qho kev txhawb nqa xwb.Yog tias ob lossis ntau tus neeg raug nias tib lub sijhawm, cov kev tswj xyuas tsis tuaj yeem lees paub thiab pom.Txhawm rau nthuav daim duab ntawm lub vijtsam tiv thaiv, koj tuaj yeem nyem "+" ntau zaus kom maj mam nthuav daim duab.Qhov no yog lub hauv paus ntsiab lus technical ntawm qhov screen resistive.

Tswj kev siv lub siab sensing.Thaum tus ntiv tes kov lub vijtsam, ob txheej txheej conductive nyob rau hauv kev sib cuag ntawm qhov taw tes kov, thiab qhov kev hloov pauv.

Cov teeb liab raug tsim nyob rau hauv ob qho tib si X thiab Y cov lus qhia thiab tom qab ntawd xa mus rau tus tswj lub vijtsam kov.

Tus maub los kuaj xyuas qhov kev sib cuag no thiab suav qhov (X, Y) txoj haujlwm, thiab tom qab ntawd coj tus cwj pwm kom haumg mus rau txoj kev simulating nas.

Cov tshuaj tiv thaiv kov tsis ntshai plua plav, dej thiab av, thiab tuaj yeem ua haujlwm hauv qhov chaw hnyav.

Txawm li cas los xij, vim tias txheej txheej txheej ntawm cov zaj duab xis sib xyaw yog ua los ntawm cov khoom siv yas, cov khoom tawg tsis zoo, thiab lub neej kev pab cuam cuam tshuam rau qee yam.

Cov tshuaj tiv thaiv kov yog tswj los ntawm kev ntsuas siab.Nws cov txheej txheej saum npoo yog txheej yas, thiab cov txheej hauv qab yog txheej iav, uas tuaj yeem tiv thaiv kev cuam tshuam ntawm ib puag ncig hnyav, tab sis muaj kev xav tsis zoo ntawm tes thiab lub teeb xa mus.Nws yog haum rau hnav hnab looj tes thiab cov uas tsis tuaj yeem kov ncaj qha nrog tessijhawm.

Surface acoustic nthwv dej yog cov tshuab tsis muaj zog uas nthuav tawm raws qhov nruab nrab ntawm qhov nruab nrab.

Cov ces kaum ntawm lub vijtsam kov tau nruab nrog ultrasonic transducers.

Lub suab nrov nthwv dej tuaj yeem xa mus thoob plaws ntawm qhov screen.Thaum tus ntiv tes kov lub vijtsam, lub suab nthwv dej ntawm qhov taw tes kov raug thaiv, yog li txiav txim siab txoj haujlwm sib koom tes.

Qhov saum npoo acoustic yoj kov npo tsis cuam tshuam los ntawm ib puag ncig yam xws li kub thiab av noo.Nws muaj kev daws teeb meem siab, khawb tsis kam, lub neej ntev, lub teeb xa hluav taws xob siab, thiab tuaj yeem tswj cov duab meej thiab ci zoo.Nws yog qhov tsim nyog rau siv rau hauv cov chaw pej xeem.

Txawm li cas los xij, plua plav, dej thiab av yuav cuam tshuam rau nws qhov kev ua tau zoo thiab yuav tsum tau saib xyuas kom huv si kom huv si.

4.Capacitive kov npo
Qhov kev tshuaj ntsuam kov no siv tam sim no induction ntawm tib neeg lub cev ua haujlwm.Ib txheej ntawm pob tshab tshwj xeeb hlau conductive khoom yog pasted rau ntawm iav nto.Thaum cov khoom siv kov kov, lub capacitance ntawm kev sib cuag yuav raug hloov, kom pom qhov chaw ntawm qhov kov.
Tab sis tsis muaj lus teb thaum kov nrog ib lub hnab looj tes los yog tuav cov khoom uas tsis yog-conductive vim qhov sib ntxiv ntawm ib qho nruab nrab insulating ntau dua.
Capacitive kov npo tuaj yeem paub lub teeb thiab nrawm kov zoo, tiv thaiv khawb, tsis ntshai plua plav, dej thiab av, haum rau siv hauv qhov chaw hnyav.
Txawm li cas los xij, txij li lub peev xwm sib txawv nrog qhov kub, av noo lossis ib puag ncig hluav taws xob, nws muaj kev ruaj ntseg tsis zoo, tsis muaj kev daws teeb meem, thiab yooj yim rau drift.