Cov kua theem sensors hauv lub tank tso cai rau koj ob leeg ua qhov ntsuas tam sim no ntawm cov kua puv, thiab qhia txog qhov ua tiav ntawm nws qhov txwv qhov tseem ceeb. Cov khoom siv zoo li no muaj qhov ntsuas qhov ntsuas siab uas teb rau qee qhov ntsuas lub cev, thiab ntsuas ntsuas, tswj thiab ntsuas ntsuas hluav taws xob. Nyob ntawm daim ntawv thov, cov khoom siv tau siv sib txawv ntawm cov hauv paus ntsiab lus ntawm lawv txoj haujlwm.
Cov ntaub ntawv qhia hauv kab lus yuav pab koj kawm txog cov hauv paus ntsiab lus ntawm kev ua haujlwm ntawm ntau hom sensors thiab lawv thaj chaw ntawm kev thov. Kev tshuaj xyuas luv luv ntawm lawv qhov zoo thiab qhov tsis zoo yuav raug ua, cov tuam txhab tseem ceeb uas tau ua pov thawj lawv tus kheej hauv kev ua lag luam yuav raug qhia.
Kev faib cov khoom siv
Cov kua theem sensors hauv lub tank tuaj yeem yog qib ntsuas lossis ntsuas cov khoom siv. Thawj ntawm lawv yog tsim los rau kev ntsuas tas li ntawm cov kua theem ntawm lub sijhawm tam sim no.sij hawm. Lawv siv cov sensors uas ua haujlwm ntawm lub cev sib txawv. Kev ua haujlwm ntxiv ntawm cov teeb liab los ntawm lawv yog ua los ntawm analog lossis digital electronic circuits uas yog ib feem ntawm cov ntsuas ntsuas. Cov ntsuas tau tau raug tso tawm rau ntawm cov khoom siv.
Cov khoom siv taw qhia ceeb toom txog kev ncav cuag tus nqi ntawm cov kua qib hauv lub tank, ua ntej los ntawm cov khoom teeb tsa. Lawv lwm lub npe yog cov ntsuas dej hauv lub tank kom tua nws cov khoom siv ntxiv. Lawv cov teeb liab tso zis yog discrete. Cov lus ceeb toom yuav raug muab tso rau hauv daim ntawv ntawm lub teeb lossis lub suab tswb. Nyob rau hauv cov ntaub ntawv no, lub lag luam ntawm lub filling los yog draining systems yog cia li thaiv.
Kev ntsuas qib
Nyob ntawm cov khoom ntawm cov kua ntsuas hauv lub tank, siv cov kev ntsuas hauv qab no:
- Tiv tauj, nyob rau hauv uas cov kua theem sensor hauv lub tank lossis ib feem ntawm nws ncaj qha cuam tshuam nrog qhov ntsuas nruab nrab;
- tsis sib cuag, zam kev cuam tshuam ncaj qha ntawm lub sensor nrog cov kua (vim nws cov khoom hnyav lossis siab viscosity).
Cov khoom siv sib cuag tau nyob hauv lub tank ncaj qha rau ntawm qhov ntsuas cov kua (floats), hauv nws qhov tob (hydrostatic siab gauges), lossis ntawm phab ntsa tank ntawm qhov siab (phaj capacitors). Rau cov ntsuas tsis sib cuag (radar, ultrasonic) nws yog ib qho tsim nyog los muab thaj tsam ntawm kev pom ncaj qha ntawm cov dej ntsuas thiab qhov tsis muaj kev sib cuag nrog.nws.
cov ntsiab cai ua haujlwm
Ob theem ntsuas thiab cov cim qhia siv cov qauv kev ua haujlwm sib txawv los ua lawv txoj haujlwm. Cov khoom siv hauv qab no tau siv dav tshaj plaws:
- ntab sensors rau qib kua hauv lub tank;
- capacitive;
- hydrostatic kua theem sensors;
- radar yam khoom siv;
- ultrasonic sensors.
Float, nyob rau hauv lem, yuav ua tau txhua yam, discrete thiab magnetostrictive. Thawj peb pawg ntawm cov sensors suav nrog cov cuab yeej siv kev sib cuag ntawm kev ntsuas, lwm ob yog cov khoom siv tsis sib cuag.
Mechanical ntab keyboards
Lub teeb ntab, tas li nyob rau saum npoo ntawm cov kua hauv lub tank, txuas nrog los ntawm cov txheej txheem ntawm cov tshuab levers mus rau nruab nrab lub davhlau ya nyob twg ntawm potentiometer, uas yog caj npab ntawm tus choj tiv thaiv. Nrog rau qhov tsawg kawg nkaus ntawm cov kua hauv lub tank, tus choj yog suav tias yog sib npaug. Tsis muaj qhov hluav taws xob hauv nws txoj kab pheeb ces kaum.
Raws li lub tank ntim, lub ntab saib xyuas txoj haujlwm ntawm cov kua theem los ntawm kev txav mus los ntawm kev sib cuag ntawm potentiometer los ntawm lub zog qib. Hloov qhov tsis kam ntawm lub potentiometer ua rau muaj kev ua txhaum ntawm lub xeev sib npaug ntawm tus choj. Qhov hluav taws xob uas tshwm sim hauv nws qhov ntsuas kab pheeb ces kaum yog siv los ntawm cov hluav taws xob hluav taws xob ntawm cov khoom siv. Nws cov analog lossis cov kev nyeem digital sib raug rau cov kua hauv lub tank tam sim no.
Discrete ntab keyboards
Discrete teeb liab nyob rau hauv daim ntawv ntawm ib lub voj vooglos yog qhib kev sib cuag ntawm lub reed hloov yog siv los ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob kom ceeb toom tias cov kua dej hauv lub tank tau mus txog qhov muaj nqis. Cov hlau tiv tauj, uas yog ua los ntawm cov khoom siv uas tsis tshua muaj kev tiv thaiv thaum lawv raug kaw, muab tso rau hauv lub qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob.
Lub ntsuas dej hauv lub tank nrog cov zis tsis sib xws suav nrog cov lus qhia hauv daim ntawv ntawm lub raj hollow rau hauv cov kua dej los ntawm lub tank tsis nkag. Cov kev sib cuag ntawm ib lossis ntau lub reed relays yog tsau rau hauv phau ntawv qhia. Lawv qhov chaw nyob yog nyob ntawm cov ntaub ntawv uas yuav tsum tau txais lub tswb thaum cov kua theem nce mus txog tus nqi teev.
Lub ntab ntawm lub sensor nrog lub me me mus tas li hlau nplaum tsim rau hauv nws txav raws cov lus qhia thaum cov kua theem hauv lub tank hloov. Kev ua haujlwm ntawm pawg neeg sib cuag tshwm sim thaum lub sijhawm nws nkag mus rau hauv qhov chaw sib nqus ntawm cov hlau nplaum ruaj khov ntawm cov ntab. Lub teeb liab los ntawm cov xov hlau txuas nrog cov neeg sib cuag ntawm cov dej theem sensor nyob rau hauv lub reed hloov tank mus rau lub tswb Circuit Court.
Magnetostrictive ntab sensors
Sensors ntawm hom no muab lub teeb liab tas li nyob ntawm qib ntawm cov kua hauv lub tank. Lub ntsiab tseem ceeb, raws li nyob rau hauv cov ntaub ntawv dhau los, yog ib tug ntab nrog ib tug mus tas li hlau nplaum nyob rau hauv, uas yuav siv sij hawm nws txoj hauj lwm nyob rau hauv cov kua thiab txav mus rau hauv ib tug ntsug dav hlau raws li cov lus qhia.
Cov kab noj hniav sab hauv ntawm phau ntawv qhia, cais tawm ntawm cov kua, yog nyob ntawm lub waveguide. Nws yog ua los ntawm magnetostrictivekhoom. Hauv qab ntawm lub ntsiab yog qhov chaw ntawm cov pulses tam sim no uas propagate raws nws.
Thaum lub xov tooj hluav taws xob mus txog qhov chaw ntawm ntab nrog cov hlau nplaum, ob qhov chaw sib nqus sib cuam tshuam. Qhov tshwm sim ntawm qhov kev cuam tshuam no yog qhov tshwm sim ntawm cov neeg kho tshuab kev vibrations uas nthuav tawm rov qab raws lub waveguide.
Ib lub piezoelectric yog tsau nyob ib sab ntawm lub tshuab hluav taws xob mem tes, uas ntes cov neeg kho tshuab kev co. Ib qho hluav taws xob hluav taws xob sab nraud txheeb xyuas lub sij hawm ncua ntawm cov emissions thiab tau txais pulses thiab xam qhov kev ncua deb ntawm lub ntab, uas yog tas li nyob rau saum npoo ntawm cov kua. Lub ntsuas hluav taws xob tsis tu ncua qhia txog qib kua hauv lub tank.
capacitive sensors
Kev ua haujlwm ntawm cov sensors ntawm hom no yog ua raws li cov khoom ntawm lub capacitor hloov nws cov hluav taws xob capacitance thaum lub dielectric tas li ntawm cov khoom uas ua rau qhov chaw ntawm nws daim hlau hloov. Coaxial capacitors yog siv, uas yog ib khub ntawm coaxial hollow hlau thooj voos kheej kheej ntawm txawv diameters.
Cov tom kawg yog cov phaj capacitor, nruab nrab ntawm cov kua tuaj yeem nkag mus tau yooj yim. Lub dielectric qhov tsis tu ncua ntawm huab cua thiab kua nruab nrab muaj qhov sib txawv. Sau lub tank ua rau kev hloov pauv ntawm tus nqi ntawm tag nrho dielectric tas li ntawm coaxial capacitor thiab, raws li, nws cov hluav taws xob capacitance.
zaus ntawm oscillatory circuit, hauvlub Circuit Court uas lub capacitor txuas nrog kev hloov pauv hauv kev faib ua feem rau qhov kev hloov pauv hauv nws cov capacitance. Lub tshuab hluav taws xob zaus / hluav taws xob hloov hluav taws xob saib xyuas qhov kev hloov pauv no thiab qhia txog tus nqi sib npaug rau qhov ntsuas ntawm lub tank.
Hydrostatic sensors
Lwm lub npe rau cov cuab yeej no yog lub ntsuas ntsuas, lossis lub siab hloov pauv. Lawv tuaj yeem nyob ruaj ruaj, tsau rau hauv qab ntawm lub tank ntim nrog kua, lossis nqa tau yooj yim. Nyob rau hauv rooj plaub tom kawg, lub siab transducers tau nruab nrog ib lub cable ntawm qhov ntev ntev. Qhov no tso cai rau lawv siv rau cov tso tsheb hlau luam ntawm qhov ntau thiab tsawg geometric.
Lub ntsiab lus rhiab ntawm hydrostatic sensor yog ib daim nyias nyias uas pom lub siab ntawm cov kua kem saum nws. Nws hloov kho yog ua nyob rau hauv xws li ib txoj kev uas atmospheric siab tsis ua rau deformation ntawm daim nyias nyias. Lub siab ntawm qhov ntsuas ntsuas tuaj yeem siv los txiav txim siab qhov siab ntawm cov kua kem lossis qhov ntsuas ntawm qhov ntim ntawm lub tank.
Tus nqi ntawm daim nyias nyias deformation yog hloov mus rau hauv hluav taws xob proportional tus nqi, uas yog siv los tso saib cov kua theem hauv lub tank. Kev kho yog siv los txiav txim siab qhov ntom ntawm qhov ntsuas nruab nrab thiab qhov nrawm ntawm lub ntiajteb txawj nqus ntawm qhov ntsuas.
Radar hom sensors
Lub tank kua theem sensor siv txoj kev ntsuas tsis sib cuag raws li cov khoom ntawm qhov nruab nrab ntawm txhua qhov ceevthiab viscosity los cuam tshuam cov teeb liab hluav taws xob. Qhov zaus ntawm lub teeb liab tawm ntawm lub radar nyob rau saum npoo ntawm qhov ntsuas cov kua theem hloov raws li txoj cai linear.
Reflected los ntawm qhov chaw, nws tuaj txog ntawm lub tshuab txais nrog kev ncua sij hawm txiav txim los ntawm qhov ntev ntawm txoj kev mus. Yog li, muaj qhov sib txawv ntawm qhov zaus ntawm ob lub cim. Los ntawm qhov loj ntawm qhov kev hloov pauv ntau zaus, cov cuab yeej tshuaj ntsuam xyuas ntawm qhov chaw txiav txim siab txoj kev taug kev los ntawm lub teeb liab lossis qib ntawm cov kua dej uas cuam tshuam rau qhov chaw ntawm lub radar.
Ultrasonic qib sensors
Cov txheej txheem ntsuas siv rau cov sensors ntawm hom no sib raug rau qhov uas tau tham hauv tshooj dhau los ntawm kab lus. Qhov chaw txoj kev ntsuas yog siv nyob rau hauv lub ultrasonic wavelength range.
Cov ntaub ntawv tau txais txiav txim siab lub sijhawm sib txawv ntawm lub tshuab xa tawm thiab cov cim tau txais los ntawm tus txais. Siv cov ntaub ntawv ntawm qhov ceev ntawm kev nthuav tawm ntawm ultrasound nyob rau hauv qhov chaw saum npoo ntawm cov kua, cov cuab yeej tshuaj ntsuam xyuas qhov kev ncua deb ntawm lub teeb liab, los yog theem ntawm cov kua hauv lub tank.
Cov ntsiab lus luv luv ntawm cov tuam ntxhab
Ua kua theem sensors hauv lub tank "ARIES" tso cai rau koj los ntsuas qhov tsim nyog ntawm qib siab. Kev tshaj tawm ntawm lawv cov khoom tuaj yeem pom ntawm ntau qhov chaw txawv teb chaws.
Tsim nyog tau txais kev saib xyuas rau cov khoom lag luam ntawm cov neeg tsim khoom hauv tsev thiab cov chaw tsim khoom L-CARD, suav nrog hauv Xeev Kev Sau Npe ntawm Kev Ntsuas Ntsuas. Alta Group, uas tau nyob rau hauv Lavxias teb sab kev lag luam rau ntau tshaj 10 xyoo, muajzoo tsim nyog cov lus pom zoo.
Zoo kawg
Cov kua theem sensors hauv lub tank yuav tsum raug xaiv raws li cov xwm txheej ntawm lawv cov kev siv, cov khoom ntawm cov kua dej, qhov ntsuas qhov ntsuas qhov tseeb. Kev nyeem ntawv tseeb tshaj plaws tuaj yeem tau txais los ntawm kev siv radar-hom sensors, magnetostrictive meters.
Nws yuav tsum nco ntsoov tias qhov tseeb tiag yuav tsum muaj cov khoom siv ntau dua. Float sensors thiab signaling devices yog cov cuab yeej siv yooj yim tshaj plaws, tab sis lawv txoj kev siv yog txwv los ntawm kev vibration vim yog cov kua ua npuas dej, nws cov viscosity, thiab qhov hnyav ntawm qhov nruab nrab.
Qhov kev daws teeb meem zoo tshaj plaws, raws li tus nqi / qhov zoo piv, yog kev siv cov hydrostatic thiab capacitive sensors, raug txwv rau cov khoom ntawm cov dej ntsuas.
