Lub sib thooj sensor hauv xov tooj - yog dab tsi? mobile tes

Lub teeb ntawm niaj hnub electronics khoom nruab nrog sensors uas paub txog qhov mus kom ze ntawm ib tug kwv, e.g., ib tug ntiv tes, ib tug keyboard los yog cov tib neeg pob ntseg rau tus xov tooj. Qhov no technology yog dav siv nyob rau hauv kev kov panels ntawm ntau hom, uas eliminates tus neeg kho tshuab switching pab kiag li lawm thiab cas sim haum lawv pab lub neej. Thiab ntau tej zaum yuav zoo yuav hais tias: ib tug sib thooj sensor ntawm tus xov tooj - dab tsi yog nws thiab yuav ua li cas yog nws ua hauj lwm? ntaus ntawv no yuav tsum tau tham hereinafter nyob rau hauv cov nqe lus ntawm kev siv rau ib tug capacitive technology.

paub mus kom ze

Recognition approximation ntawm contactless technology sai sai pom daim ntawv thov nyob rau hauv lub teb ntawm portable pab kiag li lawm powered ntawm nws tus kheej. Cov kev ua yog dav siv nyob rau hauv qhov tseeb qauv ntawm smartphones thiab ntsiav tshuaj, nyob rau hauv cov suab paj nruag players. Nws lub ntsiab lub hom phiaj yog ua rau kom cov cia siab rau ntawm lub pab kiag li lawm thiab txuag hluav taws xob lub zog.

Cov zaub chav tsev yuav tsum deactivated li ntev raws li qhov mus kom ze yog kuaj tus neeg siv txhais tes, nws yog lub luag hauj lwm rau nws thiab qhov sib thooj sensor rau koj lub xov tooj. Yuav ua li cas yog nws - nws yuav muaj tseeb yog hais tias peb xav txog lub hauv paus ntsiab ntawm nws cov lag luam. Thaum nws los txog rau kev siv ntawm tej technology, ntawm no nws yog tsim nyog sau cia hais tias nyob rau hauv lub standby hom fais fab kev noj yog koom heev dua lwm yam nyob rau hauv lub central processor. Thaum qhov sib thooj sensors txiav txim seb tus mus kom ze ntawm lub xibtes los yog ib tug ntiv tes, cov zaub yog switched, uas qhia txog qhov tam sim no cov ntaub ntawv. Tag nrho cov no thiaj li qhov nruab nrab hwj chim noj gadget, thaum ua roj teeb runtime.

Nta ntawm kev siv ntawm lub zog ntawm ntau yam kev kawm

Lub tsev automation sib thooj nrhiav kom tau feature kuj tau txais heev ntau. Daws sensors yog siv los pab kom rooj teeb, qhib li qub Washer, thaum nyob rau hauv lawv lub teb ntawm kev txiav txim yog ib tug tib neeg txhais tes; zaub tub yees thiab microwave ncu yuav tsaug zog kom txog rau thaum nws yuav tsum tsis txhob tuaj nyob ze rau cov neeg siv txhais tes. Nruab nrog no muaj nuj nqi, thiab lub tsev tshiab automation system. Kov cov ntxaij vab tshaus, siv los tswj khoom vaj khoom tsev thiab teeb pom kev zoo, teem mus ua hauj lwm raws li ib tug cov yees duab ncej. Tab sis sai li sai tau raws li nws yog nyob ze rau ib co ntawm cov neeg tam sim ntawd tshwm sim tswj nyees khawm. Txaus nthuav technology yog qhov sib thooj sensor rau koj lub xov tooj. Yuav ua li cas nws yog nws yuav pab kom to taub qhov kev piav qhia ntawm lub hom los ntawm cov uas paub yuav siv sij hawm qhov chaw.

Kom paub tias txoj kev rau approximating

Muaj ib tug xov tooj ntawm txoj kev, cov uas inductive, resistive, kho qhov muag, capacitive, kho qhov muag thiab acoustical. Txhua yam ntawm lawv tsis muaj tej yam zoo thiab tsis zoo. Qhov kev xaiv ntawm ib tug technology nyob rau tus nqi thiab yooj yim ua hauj lwm nrog nws. Xav txog qhov sib thooj sensor hauv xov tooj - nws yuav pab tau kom koj to taub tej yam lus qhia. Nyob rau hauv Feem ntau, lub capacitive sib thooj sensors yog siv. Lawv txoj ntsiab cai ntawm cov lag luam yog yooj yim heev. Sensor conductors uas haum thereto, muab zais nyob rau hauv ib tug tshwj xeeb kev tiv thaiv txheej. Ob txoj kev caij nyob ze sib thooj mus rau txhua lwm yam, muaj ib tug tej yam loj leeb capacitance uas tshwm sim nruab nrab ntawm cov conductive txheej thiab lub grounding ncoo ntawm lub sensor nws tus kheej. Feem ntau nws npaum li cas yog 10-300 pikafarad.

Thaum lub sensor yog nce, piv txwv li, ib tug ntiv tes, ib tug kev hloov nyob rau hauv lub zuag qhia tag nrho system muaj peev xwm. Nws yog siv los xyuas txog ib tug kwv nyob ze qhov uas tsis yog-hu sensor.

Kom paub tias capacitance hloov

Cia li yuav ua li cas muaj tseeb thiab txhim khu kev qha tsis-hu rau sensor yuav ua hauj lwm, nws nyob nkaus rau lub fidelity ntsuas ntawm lub hloov peev xwm ntawm lub system. Yog li ntawd, nws tau tsim ib tug xov tooj ntawm txoj kev, xws li qhov zoo tshaj plaws lub npe hu txoj kev steel them nyiaj hloov lwm lub tsev, successive approximation, tus sis ntawm cov ntsha thiab cov sigma-delta txoj kev. Feem ntau cov feem ntau lub ob ntawm lawv yog siv. Ob leeg siv ib tug hloov capacitance Circuit Court thiab lwm measuring capacitor.

Cov kev successive approximations

Nyob rau hauv cov ntaub ntawv no, lub them yog ua ib tug hloov capacitor Circuit Court. Txij li thaum lub capacitor voltage yog thov mus rau lub comparator los ntawm ib tug tsis tshua muaj pass lim, qhov twg nws yog muab piv nrog rau cov siv voltage. Ib tug txee, clocked los ntawm cov generator, yog muab tub los ntawm txoj kev lub comparator tso zis teeb liab. Ua ntawm no lub teeb liab yog nqa tawm rau ib qho sensor raws li txoj cai. negligible tooj ntawm lwm yam yuav tsum tau rau cov qauv ntawm cov successive approximations. Nyob rau hauv cov ntaub ntawv no, lub Circuit Court lag luam tsis cuam tshuam rau crosstalk nyob rau mov saw.

Zoo thiab tsis zoo Vocabulary tshuab

Daws sensor Android, zoo li lwm leej lwm tus, muaj tej yam peculiarities. Qhov zoo nyob rau hauv cov ntaub ntawv no yog raws li nram no:

- ib tug heev kom paub tias tsam;

- ib tug high degree ntawm rhiab heev;

- txheeb ze muaj nyob rau hauv cov nqe lus ntawm cov nqi, vim hais tias cov zus tau tej cov sensors yog pheej yig heev Cheebtsam - tooj liab, tin oxide zaj duab xis, ib tug indium number case, cov sab nraud hlau sensor;

- Me loj;

- lub versatility ntawm tus tsim;

- kub stability;

- lub peev xwm los ua hauj lwm nrog ntau uas tsis yog-conductive txheej, piv txwv li, lub khob ntawm txawv thicknesses;

- durability thiab siab ntseeg.

Muaj cov qauv no muaj tej yam tsis zoo:

- lub tsoov caij yuav conductive, ces nws yuav tsum tau los xyuas txog qhov mus kom ze; tab sis txhais tes, piv txwv li, nyob rau hauv ib tug roj hmab hnab looj tes, thiab nws yuav nrhiav tsis tau;

- nrhiav lub cheeb tsam ntawm lub conductive khoom tej zaum yuav ua kom lub kaw lus yuav txheeb peev lub cab capacitance thiaj li mus coj account ntawm kev hloov uas tshwm sim los ntawm tus kwv. Qhov no yog feem ntau qhov ua rau ntawm cuav alarms nyob rau hauv lub neej yav tom ntej, txawm li cas los, qhov sib thooj sensor calibration yuav tshem tawm qhov xeeb txob;

- capacitive nrhiav kom tau txoj kev ua hauj lwm thiaj li hais tias thaum lub ntau yam ntawm nws ua hauj lwm, muaj cov hlau tej khoom, lub ntau yog txo.

Xauv iPhone 4 screen

Lub sib thooj sensor ua hauj lwm li uas tso cai rau koj lov tes taw rau smartphone screen thaum lub sij hawm ib tug hu los mus tiv thaiv cov lo tseem ceeb presses. Tshwj xeeb daim ntaub ntawv uas ua rau nws tau mus xauv qhov screen los ntawm tsuas yog swiping dua nws los ntawm txhais tes. Yuav kom pab nws, koj yuav tsum nias ib tug kho vajtse khawm.

calibration

Heev feem ntau, cov neeg siv yuav ntsib nrog ib tug unpleasant teeb meem no, thaum lub screen xauv thaum hais lus yog tsis nqa tawm. Thiab nws kuj tshwm sim hais tias cov zaub tsis tig rau tom qab tus hu yog lawm, uas yog vim li cas tus xov tooj yog tsis tau. Piv txwv li, Nokia sib thooj sensor yog tsis ua hauj lwm kom zoo. Yuav kom daws tau qhov teeb meem no, nws yuav tsum tau kom. Feem ntau, feem ntau manufacturers siv tshwj xeeb software rau lub hom phiaj no, uas yuav tsum downloaded rau lub official lub website.

Qhov tseeb versions ntawm Android 4, lub calibration muaj nuj nqi yog kev nyob rau hauv cov zaub mov. Ua li no, koj yuav tsum teev nyob rau hauv qhov chaw, zoo rau lub screen, thiab ces xaiv Daws Sensor Calibration. Tom qab kaw qhov sensor caj npab yuav tsum nyob rau hauv lub qhov rais uas zoo nkaus li, nias OK. Tej zaum tso cai calibration thiab tsis muaj kaw sensor.