Capacitive sib thooj keyboards tuaj yeem siv rau kev sib cuag lossis tsis sib cuag ntawm txhua yam khoom siv. Nrog LANBAO's capacitive sib thooj sensor, cov neeg siv tuaj yeem kho qhov rhiab heev thiab txawm nkag mus rau cov kaus poom uas tsis yog hlau lossis cov thawv ntim kom pom cov kua dej sab hauv lossis cov khib nyiab.
01 Technical Overview
Lub capacitor uas muaj ob daim hlau tsim hluav taws xob nruab nrab ntawm cov phaj thaum nws siv. Txhua yam khoom uas nkag mus rau hauv daim teb no hloov lub capacitance ntawm daim hlau.
Lub capacitor kuj tseem muaj lub phaj. Hauv qhov no, qhov thib ob "phaj" yog cov xaim hauv av.
Tag nrho cov capacitive sensors muaj tib lub hauv paus ntsiab lus.
1.Enclosures - Ntau yam duab, qhov ntau thiab tsawg thiab cov khoom siv
2.Basic sensor caij - txawv raws li cov cuab yeej siv
3.Electronic Circuit Court - ntsuas cov khoom kuaj pom los ntawm cov sensors
4.Electrical kev twb kev txuas - muab lub zog thiab tso zis teeb liab
Nyob rau hauv cov ntaub ntawv ntawm capacitive sensors, lub hauv paus sensing caij yog ib tug board capacitor thiab lwm yam phaj kev twb kev txuas yog grounded. Thaum lub hom phiaj txav mus rau qhov chaw ntsuas sensor, tus nqi capacitance hloov pauv thiab cov khoom tso tawm sensor hloov.
1. capacitor
2. kev sib txuas
3.Induction nto
02 Cov yam tseem ceeb uas cuam tshuam rau qhov ntsuas qhov deb ntawm lub sensor
Qhov induced nrug yog hais txog lub cev qhov deb uas ua rau cov zis hloov pauv hloov thaum lub hom phiaj ze rau lub sensor qhov induced nto nyob rau hauv cov kev taw qhia axial.
Peb cov khoom parameter daim ntawv teev peb qhov sib txawv:
Sensing Rangeyog hais txog qhov nominal nrug uas tau teev tseg nyob rau hauv txoj kev loj hlob, uas yog raws li lub hom phiaj ntawm tus qauv loj thiab cov khoom.
Qhov Real Sensing Rangecoj mus rau hauv tus account qhov sib txawv ntawm chav tsev kub. Qhov phem tshaj plaws yog 90% ntawm nominal sensing range.
Qhov Chaw Ua Haujlwm Qhov Tseebcoj mus rau hauv tus account hloov taw tes drift tshwm sim los ntawm cov av noo, kub nce thiab lwm yam, thiab qhov phem tshaj yog 90% ntawm qhov tseeb induced nrug. Yog tias qhov kev ncua deb inductive yog qhov tseem ceeb, qhov no yog qhov kev ncua deb siv.
Hauv kev xyaum, cov khoom tsis tshua muaj qhov loj thiab cov duab. Kev cuam tshuam ntawm lub hom phiaj loj yog qhia hauv qab no:
Txawm tias tsawg dua qhov sib txawv ntawm qhov loj yog qhov sib txawv ntawm cov duab. Daim duab hauv qab no qhia txog qhov tshwm sim ntawm cov duab ntawm lub hom phiaj.
Nws yog ib qho nyuaj rau muab qhov kev hloov kho raws li qhov zoo, yog li kev sim yuav tsum tau muaj nyob rau hauv cov ntawv thov uas qhov kev ncua deb yog qhov tseem ceeb.
Thaum kawg, lub ntsiab tseem ceeb cuam tshuam rau qhov kev ncua deb yog qhov dielectric tas li ntawm lub hom phiaj. Rau cov qib capacitive sensors, qhov siab dua qhov dielectric tas li, qhov yooj yim dua cov khoom yog los xyuas. Raws li txoj cai dav dav ntawm tus ntiv tes xoo, yog tias qhov dielectric tsis tu ncua ntau dua 2, cov khoom yuav tsum tau kuaj pom. Cov hauv qab no yog cov dielectric tsis tu ncua ntawm qee cov khoom siv rau kev siv nkaus xwb.
03 Capacitive sensor rau qib nrhiav pom
Txhawm rau kom ua tiav kev siv capacitive sensors rau qib nrhiav kom pom, xyuas kom meej tias:
Cov phab ntsa ntawm lub nkoj yog cov tsis yog xim hlau
Thawv phab ntsa thickness tsawg dua ¼ "-½"
Tsis muaj hlau nyob ze ntawm lub sensor
Qhov chaw induction yog muab tso ncaj qha rau ntawm phab ntsa ntawm lub thawv
Equipotential grounding ntawm sensor thiab thawv
Post lub sij hawm: Feb-14-2023