Cov kab lus yuav tham txog cov ntsuas qib kua uas siv hauv ntau qhov kev lag luam - los ntawm tsheb mus rau tsev neeg thiab kev lag luam. Yuav kom automate ntau yam txheej txheem, nws yog ib qho tsim nyog los tswj cov qib ntawm cov kua. Qhov no tuaj yeem ua tiav siv cov sensors tshwj xeeb. Lawv xa cov teeb liab mus rau chav tswj hwm txog qib uas cov kua nyob hauv lub tank. Cov hauv qab no yuav piav qhia txog yam tseem ceeb ntawm cov sensors thiab cov yam ntxwv ntawm lawv txoj haujlwm.
txoj cai ua haujlwm thiab tsim
Tus tsim ntawm hom sensor no nyob ntawm nws txoj haujlwm. Qhov kev ntsuas no cuam tshuam rau hom ntaus ntawv - nws tuaj yeem yog qhov taw qhia lossis ntsuas. Thawj qhov yuav tsum tau ua txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm, cov txheej txheem yuav tsum tau muab tshem tawm. Qhov kawg tso cai rau koj los tswj cov kua dej tas li.
raws liLub hauv paus ntsiab lus ntawm kev ua haujlwm kuj tseem tuaj yeem dag hauv hluav taws xob conductivity, hydrostatics, electromagnetism, acoustics, optics, thiab lwm yam.
Thiab txoj kev ntsuas yuav tsis tiv tauj lossis tiv tauj.
Nws tseem tsim nyog sau cia tias tus qauv tsim nyob ntawm thaj chaw uas siv cov cuab yeej siv. Koj yuav tsum nkag siab tias kev ntsuas qib ntawm cov dej haus los yog cov khoom siv hluav taws xob yog ob yam sib txawv.
Ntau yam ntawm sensors
Cov ntsuas dej hauv cov chav boilers tuaj yeem siv sib txawv. Qhov loj tshaj plaws yog tias lawv tiv taus lub load. Muaj ntau yam khoom siv:
- Float.
- Siv ultrasound.
- capacitive sensors.
- Devices nrog electrodes.
- Ua haujlwm ntawm lub hauv paus ntsiab lus ntawm radar.
- Hydrostatic devices.
Cov no yog cov khoom siv yooj yim tshaj plaws uas tuaj yeem pom nyob txhua qhov chaw. Los ntawm cov khoom siv zoo li no, koj tuaj yeem ua qhov ntsuas ntsuas qhov ntsuas cua txias rau lub tsheb. Cov zoo sib xws yog ntsia rau hauv cov roj tso tsheb hlau luam. Los ntawm txoj kev, txawm nyob rau hauv cov tais diav yooj yim siv lub ntab sensor, tsuas yog nws tswj kev ua haujlwm ntawm lub tshuab tsav uas kaw cov dej thaum lub siab tshaj plaws tau mus txog.
Raws li qhov yooj yim tshaj plaws hluav taws xob hom qib sensors, lawv muaj cov hlau nplaum mounted ntawm lub ntab ntab thiab ob lub reed keyboards. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub cuab yeejzoo li no:
- Thaum lub thawv ntim tas rau qhov tsawg kawg nkaus, cov hlau nplaum yuav rov qab hloov pauv hloov pauv hloov pauv. Cov kev sib cuag raug kaw thiab lub tshuab hluav taws xob hluav taws xob tau hloov mus. Nws yog nrog nws cov kev pab uas koj tuaj yeem hloov lub zog ntawm lub twj tso kua mis.
- Thaum qhov siab tshaj plaws tau mus txog, qhov hloov pauv thib ob tau qhib, uas muab lub teeb liab qhib lub zog hluav taws xob. Yog li ntawd, kev muab dej lossis lwm yam kua raug tso tseg.
Tab sis yog tias koj tsis siv cov hloov pauv hloov pauv, tab sis cov xaim hloov pauv hloov pauv, koj tuaj yeem txuas nws mus rau voltmeter. Thiab tom qab ntawd koj yuav tuaj yeem tswj tau qib hauv lub tank.
Ultrasonic devices
Nws yog ib qho tsim nyog sau cia tias qhov yuav tsum tau ua rau cov ntsuas qib ua kua tau txais txiaj ntsig zoo - lawv tuaj yeem siv rau hauv cov kua nruab nrab. Tab sis lawv ua haujlwm zoo nrog cov khoom qhuav. Rau qib sensors ntawm hom no, cov zis tuaj yeem yog discrete lossis analog. Hauv lwm lo lus, lub cuab yeej tuaj yeem txwv kev sau thaum nws ncav cuag ib qho taw qhia. Nws tseem ua tau los saib xyuas cov qib. Tus tsim muaj xws li ib tug ultrasonic teeb liab emitter, ib tug receiver thiab ib tug maub los uas tso cai rau cov teeb liab ua.
Lub kaw lus ua haujlwm raws li hauv qab no:
- Impulse los ntawm tus emitter.
- Lub teeb liab tau txais los ntawm lub cuab yeej.
- Qhov attenuation ntawm lub teeb liab ultrasonic tau raug tshuaj xyuas. Nyob rau hauv cov ntaub ntawv uas lub tank puv, ces lub teeb liab yuav siab tshaj plaws. Yog tias nws khoob, ces nws tsawg heev.
Ultrasonic tsis tiv tauj cov kua theem tswj cov cuab yeejthiab tsis muaj xov hlau, yog li lawv tuaj yeem siv tau txawm tias qhov chaw tawg thiab ua phem.
Tom qab kev teeb tsa thawj zaug tau ua tiav, tsis tas yuav ua haujlwm rau lub cuab yeej - nws cov peev txheej yog siab heev, tshwj xeeb, vim tsis muaj cov khoom txav.
Electrode sensors
Sensors ntawm hom no tso cai rau koj los tswj ib lossis ntau qib hauv lub tank. Muaj tsuas yog ib qho feature - cov khoom, qib uas ntsuas, yuav tsum ua tam sim no. Yog li ntawd, nws tsis tuaj yeem ntsuas qib ntawm cov dej distilled nrog cov cuab yeej no. Cov khoom siv zoo li no tau siv, piv txwv li, hauv cov dej yees.
Thaum cov dej poob qis dua qhov tsawg kawg nkaus tus nqi tso cai, qhov qis thiab nruab nrab electrodes qhib - lub teeb liab tau muab los qhib qhov chaw nres tsheb. Thaum cov pej thuam puv, qhov nruab nrab thiab sab sauv electrodes raug kaw, cov twj tso kua mis raug kaw. Cov qauv tsim yog yooj yim thiab txhim khu kev qha, tab sis koj yuav tsum siv cov xov hlau los ua haujlwm. Thiab yog tias lawv tawg thiab qhov no tshwm sim hauv lub caij ntuj no hnyav? Kev ua haujlwm rov qab los yuav muaj teeb meem.
Capacitive sensors
Txoj kev yooj yim tshaj plaws los tswj cov kua dej yog txiav iav rau hauv lub thawv. Nyob rau hauv cov ntaub ntawv no, tsis xav tau ib tug ntsuas qib kua, vim hais tias cov filling yuav pom. Tab sis feem ntau qhov no tsis tuaj yeem ua tau, yog li ntau yam khoom siv tsim tau siv los tso saib qib.
Nrog kev pab los ntawm cov khoom siv capacitive, koj tuaj yeem txiav txim siab qhov siab tshaj plaws ntawm lub tank. ThiabNws raug tso cai los ntsuas tus nqi ntawm cov kua tshuaj thiab cov khoom loj.
Kev ua haujlwm ntawm lub sensor zoo ib yam li lub capacitor - lub capacitance yog ntsuas ntawm ob daim hlau ntawm lub caij. Thaum tus nqi pib ntawm lub capacitance mus txog, lub teeb liab raug xa mus rau cov ntaub ntawv ua khoom siv - microcontroller. Qee lub sij hawm hu ua kev sib cuag qhuav yog koom nrog. Nyob rau hauv rooj plaub no, lub 'meter' yog cais los ntawm cov khoom, muab tso rau tom qab phab ntsa ntawm lub tank.
Cov khoom siv no tuaj yeem ua haujlwm hauv qhov kub thiab txias. Ntxiv mus, hluav taws xob hluav taws xob tsis tuaj yeem cuam tshuam rau kev ua haujlwm.
Radar hom sensors
Cov khoom siv taw qhia zoo li no yuav luag thoob ntiaj teb, vim lawv ua haujlwm nrog txhua yam khoom. Lawv tuaj yeem siv tau txawm tias nyob hauv ib puag ncig hnyav thiab tawg. Thiab nws yuav tsum raug sau tseg tias qhov kub thiab txias tsis tuaj yeem cuam tshuam qhov ntsuas qhov tseeb.
Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog qhov yooj yim heev - xov tooj cua nthwv dej tau tawm hauv qhov nqaim heev. Raws li nrog cov khoom siv ultrasonic, qib ntawm lub teeb liab lub zog poob yog ntsuas.
YHydrostatic sensors
Yog tias nws tsis tuaj yeem siv qhov ntsuas qhov muag pom tau, koj yuav tsum siv lub tshuab hluav taws xob. Hydrostatic tso cai rau koj ntsuas ob theem txwv thiab lub xeev tam sim no. Nyob rau hauv rooj plaub no, lub siab yog ntsuas, uas tsim ib kem ntawm cov kua. Hom sensors no nrov heev, nws tuaj yeem siv tau rau txhua qhov tib yamdej yees kom tshem tau cov electrodes, uas tsis yooj yim heev.
