Kua thiab granular media yog siv nyob rau hauv ntau qhov chaw ntawm kev tsim khoom. Cov khoom siv raw no tuaj yeem ua haujlwm sib txawv, tab sis feem ntau cov thev naus laus zis rau nws siv muab rau kev tswj cov ntim ntim, bunkers thiab reservoir nrog lawv. Rau qhov no, tshwj xeeb signaling pab kiag li lawm yog siv, uas kuj yuav xam tau tias yog sensors thiab tswj relays. Nyob rau hauv rooj plaub no, cov txheej txheem ntawm kev qhia thiab cov hauv paus ntsiab lus rau kev txiav txim siab cov qib filling yuav txawv. Muaj cov kev hloov pauv theem ntawm kev ua lag luam uas txawv ntawm kev tsim, hom kev hnov lus thiab muaj cov haujlwm ntxiv.
capacitive sensors
Cov no yog cov tswb nrov tshaj plaws thoob ntiaj teb, uas, nyob ntawm tus qauv, haum rau cov khoom loj lossis cov kua dej. Tshwj xeeb, cov qib ntawm cov hmoov nplej, cov khoom siv granular, cov roj khov, cov cement slurries, thiab lwm yam yog ntsuas los ntawm kev siv lub capacitive signaling device, qee qhov kev hloov kho kuj tso cai rau koj los txheeb xyuas qhov muaj lub cev txawv teb chaws, qhia qhov no rau cov tswj vaj huam sib luag. Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog nyob ntawm qhov hloov pauv ntawm cov khoom siv hluav taws xob.
Raws li txoj cai, hom kev hloov qib no muaj lub ntsiab lus rhiab heev uasncaj qha kev sib cuag nrog lub hom phiaj cov khoom, tas li saib xyuas cov dielectric tsis tau ntawm huab cua nruab nrab. Kev hloov pauv hauv cov zaus kaw tau hloov mus rau hauv lub teeb liab pub rau cov zis tswj relay. Tus tsim ntawm lub capacitive sensor yog varied - manufacturers tsim tubular, saj zawg zog, cable thiab lwm yam qauv.
Float keyboards
Kuj yooj yim hauv kev tsim thiab ntau yam ntawm cov khoom siv teeb liab. Tus txheej txheem ntaus ntawv ntawm xws li ib tug sensor muab rau lub xub ntiag ntawm ib tug ntab, uas yog kev cob cog rua rau lub switching mechanisms ntawm electromagnetic tiv tauj. Hauv kev ua haujlwm ib puag ncig, ntab ntes tau tuaj yeem nyob ob qho tib si ntsug thiab kab rov tav, uas tseem nthuav dav ntau yam ntawm lawv cov ntawv thov. Thiab tseem muaj kev txwv rau kev siv cov sensors ntawm hom no.
Piv txwv li, lawv tsis tshua siv hauv cov txheej txheem thev naus laus zis uas qhov raug siab ntawm kev nyeem ntawv thiab qhia ntxiv txog cov khoom ntawm qhov nruab nrab ua haujlwm yuav tsum tau ua. Ntawm qhov tod tes, lub ntab theem hloov yog tiv taus rau kev ua haujlwm tsis zoo. Vim li no, nws yog siv los ua cov ntaub ntawv teev cov tshuaj aggressive, kerosene, dej hiav txwv, thiab lwm yam. Qhov nruab nrab kub siab tshaj plaws rau kev siv lub ntab hloov yog 200 ° C.
Buys
Nyob rau hauv qee txoj kev, ib hom float signaling devices, tab sis nws muaj nws tus yam ntxwv. Lub hauv paus ntawm cov qauv yog tsim los ntawm ib tug buoy, uasraug tshem tawm ntawm ib lub cable thiab, tib yam li ntab analogs, txuas nrog kev sib txuas lus rau kev xa cov ntawv nyeem. Cov txheej txheem ntawm immersing lub ntaus ntawv nyob rau hauv ib tug ua hauj lwm kua nruab nrab pab txhawb rau ib tug hloov nyob rau hauv lub load ntawm lub cable, uas ua rau lub qhib ntawm kev sib cuag.
Tus qauv yog qhov yooj yim heev hauv kev tsim, tab sis nws muaj qhov zoo. Piv txwv li, qhov ntsuas qhov ntsuas dej buoy muaj peev xwm ua haujlwm ntawm kev kub siab - txog 20 MPa. Raws li kev tiv thaiv los ntawm ib puag ncig hnyav thiab kub cuam tshuam, cov khoom zoo no tau txiav txim siab los ntawm kev tsim thiab cov ntaub ntawv ntawm kev tsim khoom ntawm ib qho qauv.
vibrating tswb
Ib qho cuab yeej thev naus laus zis ntau dua ntawm cov khoom siv hluav taws xob, uas tuaj yeem siv rau hauv qhov chaw sib txawv - xoob thiab kua. Lub hauv paus ntsiab lus ntawm kev ua haujlwm, raws li lub npe implies, yog nyob ntawm oscillatory txav. Thaum lub sij hawm ua hauj lwm, cov khoom rhiab heev ntawm cov cuab yeej tsim cov tshuab vibrations nyob rau hauv cov xwm txheej ntawm resonant zaus. Lub sensor yog siv los ntawm lub tshuab hluav taws xob piezoelectric lossis lwm lub zog hluav taws xob.
Imersion ntawm vibrating qib hloov provokes ib qho kev hloov hauv cov haujlwm ntawm zaus oscillations thiab hluav taws xob tsis nyob rau hauv Circuit Court txuas nrog lub sensor. Tsis tas li ntawd, cov kev hloov pauv ntawm cov hluav taws xob hluav taws xob tau sau npe nyob rau hauv lub relay raws li cov teeb liab tso tawm. Qhov zoo ntawm kev vibration tswb muaj xws li tsis kam mus rau qhov kub thiab txias, kev kub siab thiab kev kub ntxhov ib puag ncig. Rau ntau tus neeg siv khoom, qhov tseeb siab ntawm cov khoom siv no kuj tseem ceeb - qhov yuam kev nruab nrab yog 1 hli.
Optical sensors
Optical signaling devices siv lub teeb teeb ua lub ntsuas ntsuas. Qhov chaw tuaj yeem yog lub teeb me me infrared lossis laser. Lub hauv paus ntsiab lus ntsuas nws tus kheej yog ua raws li lub peev xwm ntawm cov khoom siv los xav txog, thim rov qab lossis xa cov teeb ci los ntawm nws tus kheej.
Nws yog ib qho tseem ceeb kom hais meej tias cov khoom siv kho qhov muag muab kev sib cuag thiab tsis sib cuag. Txij li qhov no yog qhov hloov hluav taws xob theem, koj tuaj yeem suav nrog qhov raug siab ntawm cov txiaj ntsig tau muab. Raws li rau cov khoom siv ua haujlwm, cov no tuaj yeem yog ob qho tib si xov xwm thiab cov khoom tshwj xeeb, piv txwv li, ua npuas ncauj lossis roj khoom. Tsis tas li ntawd, optics ua rau nws muaj peev xwm sau qhov ceev, viscosity thiab pob tshab ntawm cov ntaub ntawv.
Ultrasonic sensors
Zoo li lwm yam khoom siv ntsuas ultrasonic, hom qib sensor ua haujlwm raws li kev ntsuas ntawm acoustic vibrations. Ib tug tshwj xeeb receiver ua raws li ib tug hluav taws xob qhov chaw. Nws yog ntsia rau hauv ib lub thawv, tom qab uas cov txheej txheem ntawm keeb kwm propagation ntawm ultrasonic teb yog pib. Thaum lub sijhawm kho qhov sib txawv ntawm qhov tsis muaj suab nrov, cov khoom siv hluav taws xob tig mus rau qhov tso zis tawm, kaw lossis qhib lub voj voog.
Ultrasonic qib keyboards muaj qhov yuam kev nruab nrab ntawm 2 hli, tab sis daim duab no tuaj yeem txhim kho hauv cov txheej txheem ntawm kev nrhiav qhov chaw zoo tshaj plaws. Raws li kev xyaum qhia, ultrasonic qauv ntawm signaling li yog heevxav tau ntawm cov xwm txheej ntawm kev ua haujlwm hauv thaj chaw. Tab sis lwm yam, lawv ua tau zoo ib yam.
Rotor qauv ntawm signalers
Qhov no yog ib qho ntawm feem ntau cov qauv ntawm cov khoom siv hluav taws xob hluav taws xob, uas feem ntau siv los ua haujlwm nrog cov khoom sib tov ntau. Cov khoom siv no tuaj yeem siv rau hauv kev lag luam tawg thiab khoom noj khoom haus rau cov khoom siv nrog qhov ntom ntawm li 100 g / l thiab ib feem ntawm txog 50 hli. Tshwj xeeb, qhov hloov pauv hloov pauv yog siv los muab cov tso tsheb hlau luam rau qab zib, nplej, hmoov, tsiaj pub, thiab lwm yam.
Lub ntsiab lus rau cov qauv no yog sawv cev los ntawm lub rotor hniav, uas tig los ntawm kev hloov ntawm lub zog los ntawm lub tshuab hluav taws xob synchronous. Qhov tseeb, lub sijhawm ntawm kev hloov pauv hauv lub tank raug kaw vim yog kev txhim kho ntawm cov hniav los ntawm lub hom phiaj nruab nrab. Tom qab ntawd cov electromechanical filling tuaj rau hauv kev ua si, uas qhib cov neeg sib cuag, xa cov teeb liab mus rau tus tswj relay.
Ntau yam los ntawm kev hloov hom
Feem ntau cov khoom siv taw qhia ua haujlwm nrog qhov taw qhia kev sib cuag, uas yog ob hom - electromechanical thiab lub xeev ruaj khov. Nyob rau hauv thawj rooj plaub, mechanical contacts los yog ib tug tswj relay yog siv. Lub zog ntawm electromechanics suav nrog kev muaj peev xwm ua haujlwm nrog cov hluav taws xob loj thiab qhov tam sim no, uas txhim kho kev ntsuas qhov tseeb.
Tib lub sijhawm, cov kev sib cuag no tsis cuam tshuam los ntawm evaporation, yog li cov kua theem hloov nrog electromechanics raug tso cai ua haujlwm hauvchav nrog kub kub. Nyob rau hauv lem, lub xeev cov keyboards tsis muaj txav txhua yam uas yuav tsum tau hnav. Ntawd yog, hauv cov txheej txheem ntawm kev siv cov cuab yeej no, tsis tas yuav hloov kho cov khoom siv tsis tu ncua. Tsis tas li ntawd, cov khoom siv hauv lub xeev hloov sai dua thiab teb rau lub teeb liab tau txais qhov system.
Zoo kawg
Nyob rau hauv kev xaiv cov cuab yeej tsim nyog rau kev kho cov qib ntim ntawm cov khoom ntim nrog qee yam khoom, nws tsim nyog xav txog ntau yam tsis muaj. Nws tsim nyog pib nrog cov yam ntxwv ntawm ib puag ncig thiab kev ua haujlwm ntawm lub cuab yeej. Qhov no yuav muab rau koj ib lub tswv yim ntawm qhov zoo tshaj plaws tsim thiab ntsuas scale.
Ntau qhov kev xaiv yog cuam tshuam los ntawm lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm qhov taw qhia qib, nrog rau txoj kev xa cov ntaub ntawv mus rau relay. Yam tsawg kawg nkaus, cov kev ntsuas no yuav txiav txim siab qhov tseeb ntawm qhov ntsuas. Tsis txhob las mees cov functionality ntxiv. Qhov nyuaj thiab kim cov khoom siv teeb liab, ntau lub sijhawm nws yuav muab rau kev sau cov yam ntxwv ntawm ib puag ncig. Yog li, ntxiv rau qib ntawm lub cev ntim ntawm lub thawv, tib lub qauv kho qhov muag thiab ultrasonic tuaj yeem xa cov ntaub ntawv hais txog qhov ntom ntom, qib viscosity thiab lwm yam zoo ntawm cov khoom.
