Coj Wave Radar Qib Transmitter
ZSRD70X Guided Wave Radar Explosion-proof Magnetic Level meter yog lub ntsuas ntsuas raws li lub hauv paus ntsiab lus ntawm lub sijhawm mus ncig. Lub radar nthwv dej khiav ntawm lub teeb nrawm, thiab lub sijhawm khiav tuaj yeem hloov pauv mus rau theem teeb liab los ntawm cov khoom siv hluav taws xob.
Hauj lwm lawm
Nqe lus piav qhia:
ZSRD70X Guided Wave Radar Explosion-proof Magnetic Level meter yog lub ntsuas ntsuas raws li lub hauv paus ntsiab lus ntawm lub sijhawm mus ncig. Lub radar nthwv dej khiav ntawm lub teeb nrawm, thiab lub sijhawm khiav tuaj yeem hloov pauv mus rau theem teeb liab los ntawm cov khoom siv hluav taws xob. Qhov kev sojntsuam xa tawm siab - zaus pulses thiab propagates raws cable lossis qws sojntsuam. Thaum cov pulses ua tau raws li qhov saum npoo ntawm cov khoom, lawv tau rov qab los thiab tau txais los ntawm lub receiver nyob rau hauv lub 'meter', thiab cov teeb liab nyob deb tau hloov mus rau hauv ib theem teeb liab.
Lub teeb pom kev pom mem tes xa mus rau hauv hluav taws xob hauv hluav taws xob ntawm lub ntsuas ntsuas raws li cov kab hluav taws xob lossis pas ntsuas ntsuas. Lub microprocessor ua cov teeb liab no los txheeb xyuas cov ncha uas tsim los ntawm microwave pulse ntawm cov khoom siv. Qhov tseeb echo teeb liab qhia tau ua tiav los ntawm pulse software, thiab qhov deb D ntawm cov khoom siv yog proportional rau lub sij hawm mus ncig T ntawm lub mem tes:
D=C×T/2
Qhov twg C yog qhov ceev ntawm lub teeb
Txij li qhov deb E ntawm lub tank khoob tau paub, qib L yog:
L=E-D
Los ntawm kev nkag mus rau lub tank qhov siab E (=zero point), lub tank puv
Qhov siab F (= tag nrho scale) thiab qee qhov kev thov tsis ua haujlwm
Kev teeb tsa, daim ntawv thov tsis ua haujlwm yuav ua rau lub ntsuas ntsuas hloov mus rau qhov ntsuas
Ntau qhov chaw, sib xws rau 4-20mA tso zis.
Kev ntsuas ntau:
H---- Kev ntsuas ntau
L ---- qhov deb ntawm lub tank
B---- saum qhov muag tsis pom kev
E ---- Yam tsawg kawg ntawm kev sojntsuam mus rau phab ntsa tank
Sab saum toj qhov muag tsis pom kev yog hais txog qhov tsawg kawg nkaus ntawm qhov siab tshaj plaws ntawm cov khoom siv thiab qhov ntsuas qhov taw qhia.
Qhov chaw dig muag hauv qab yog hais txog qhov kev ncua deb ze rau hauv qab ntawm lub cable uas tsis tuaj yeem ntsuas qhov tseeb.
Nws muaj qhov ntsuas ntsuas qhov ntev ntawm thaj chaw dig muag sab saum toj thiab hauv qab qhov muag tsis pom kev.
Taw qhia
1.1 Daim ntawv thov ua haujlwm
RD800X77-81GHz FM FMCW radar khoom (tseem hu ua millimeter yoj radar),
vim nws txais siab tshaj Ku band radar zaus millimeter yoj band, nyob rau hauv lub chaw taws teeb lub hom phiaj nrhiav kom tau, muaj zog pa taws plua plav puag ncig, nyob deb
Dab tsi yog millimeter yoj electromagnetic yoj: feem ntau 30-300GHz zaus sau npe
(wavelength yog 1 ~ 10 hli) electromagnetic yoj hu ua millimeter yoj, nws nyob rau hauv lub
microwave thiab deb infrared nthwv dej overlapping wavelength ntau, yog li nws muaj cov yam ntxwv ntawm ob lub spectra. 77-81GHz band ntawm cov khoom no yog qhov tsawg tshaj plaws to taub thiab tsim cheeb tsam, nrog rau cov nram qab no nta.
● Kev ua tau zoo nyob rau lub sijhawm: lub mem tes dav ntawm qhov band no tuaj yeem nqaim hauv qib -picosecond (ps), yog li nws tuaj yeem siv rau lub sijhawm- daws qhov kev kawm ntawm ntau yam ntaub ntawv, ntsuas qhov
molecular qauv; los ntawm kev ntsuas ntsuas thev naus laus zis, tuaj yeem cuam tshuam kev cuam tshuam ntawm cov suab nrov tom qab liab.
● Muaj qhov dav dav dav: qhov band mem tes no feem ntau tsuas yog xav tau ob peb lub voj voog ntawm electromagnetic yoj poob siab, thiab ntau lub zog macromolecular vibration thiab rotational zog, dielectric, semiconductor, superconducting, nyias zaj duab xis khoom molecular
vibration theem ntawm band ze rau. Yog li ntawd, qhov band spectrum no tuaj yeem siv los ua ib qho
zoo txhais tau tias txhawm rau txheeb xyuas cov ntaub ntawv xov xwm hauv millimeter yoj band, uas yog qhov tsim nyog rau kev ntsuas cov khoom nqus spectrum, thiab tuaj yeem siv rau qhov zoo.
daim ntawv sau npe.
● Coherence: dipole oscillation tsav los ntawm coherent tam sim no los yog nonlinear sib txawv zaus cuam tshuam ntawm coherent laser mem tes;
● Tsis tshua muaj zog: millimeter yoj photon zog tsuas yog ob peb millielectron volt, yuav tsis muaj X-ray ionization thiab kev puas tsuaj ntawm cov khoom yuav raug kuaj pom, yog li nws tsis yooj yim rau kev puas tsuaj rau cov khoom kom kuaj tau.
● Muaj zog nkag mus: nrog lub zog nkag mus rau cov khoom tsis muaj polar, ntau
non-cov ntaub ntawv uas tsis yog xim hlau muaj me ntsis ray nqus ntawm cov qhab no, yog li nws tuaj yeem siv los kuaj xyuas cov qauv sab hauv ntawm cov khoom. Piv txwv li, ceramics / cardboard / yas
cov khoom / ua npuas ncauj yog pob tshab rau qhov band electromagnetic radiation, thiab tseem tuaj yeem siv rau kev saib xyuas kev nyab xeeb ntawm tshav dav hlau / chaw nres tsheb, xws li kev tshawb nrhiav cov tshuab / khoom tawg thiab tshuaj, lossis rau kev kuaj xyuas cov khoom siv hluav taws xob.
Radar Bit Meter
● Ib qho yooj yim kom nqus tau los ntawm cov polar molecules: cov kab no muaj qhov tawg tsawg dua nyob rau hauv cov khoom tsis yog-ib txwm, thiab tuaj yeem ntes thiab ntsuas cov dej vapor. Lawv kuj tuaj yeem ua tau
kawm los ntawm kev txheeb xyuas lawv cov yam ntxwv profiles lossis los ntawm kev tswj xyuas qhov zoo.
Raws li 78GHz band radar siv nyob rau hauv kev lag luam ntsuas, siab precision thiab
tsis yog- qib sib cuag thiab ntsuas qib kua muaj qhov zoo sib xws ntawm lwm yam
zoo tib yam microwave pulse radar thiab coj yoj radar. Nws nqaim heev beam thiab
Kev muaj peev xwm nkag tau tuaj yeem hloov kho kom haum rau kev ua haujlwm nyuaj heev yam tsis muaj qhov ua tau zoo ntawm kev ntsuas.
1.2 RD800X Cov khoom tsim nyog rau daim ntawv thov teb
● Cov khoom lag luam electromagnetic yoj emission lub kaum sab xis yog tsawg dua 3 degree, uas tsim nyog rau qhov chaw nqaim lossis qhia yoj kav dej ntsuas
● Cov khoom tuaj yeem ncav cuag qhov ntsuas 120M, haum rau kev ntsuas ntawm lub tank loj heev
● Cov khoom ntsuas qhov muag tsis pom hauv thaj tsam 7-8CM, haum rau lub tank me me
● Cov khoom muaj qhov ntsuas qhov tseeb heev, haum rau kev ntsuas siab
● Cov khoom muaj nplua nuj ncha ua algorithm thiab kev paub cov ntaub ntawv ntawm ntau yam kev ua haujlwm, sib tov thiab cua sov pas nrig.
1.3 RD800X Khoom nta
● 77GHz-81GHz FM yoj radar
● 5GHz super-loj FM scanning zaus dav, dav daim ntawv thov nto
● Standard HART, RS485 / MODBUS cov txheej txheem tsheb npav tau txais kev txhawb nqa
● Txhawb nqa lub tshuab sab saud teeb tsa software, tank sab rooj thiab lwm hom kev ua haujlwm
● 24VDC fais fab mov
● Cov qauv kev teeb tsa yooj yim, yoog rau ntau hom kev teeb tsa ntawm qhov chaw
SPECIFICATIONS
INSTALL
3.1 Installation site
● Tsis txhob mount lub twj tso kua mis nyob rau hauv nruab nrab txoj hauj lwm los yog ze ntawm ntug ntawm lub thawv, txwv tsis pub nws yuav ua tau nyeem ntawv tsis raug.
Piv txwv ntawm kev zam spurious echoes
Ladder txoj hauj lwm thiab grille tank kho
Phab ntsa dai thiab grille tank kho
Lub kaum sab xis installation
● Beam scattering: vim cov nyhuv polarization ntawm lub teeb liab microwave thiab phab ntsa ntawm lub nkoj, qhov ntsuas qhov deb ntawm lub thawv yuav tsum tsis pub tsawg tshaj 20mm los ntawm phab ntsa.
● Polarization nyhuv:
(1) Emission cones ntsib cov teeb meem tiaj tus thiab ntsug struts tuaj yeem ua rau loj
spurious reflections. Cov teeb meem no muaj kev cuam tshuam radar teeb liab ntawm loj amplitude. Qhov saum npoo ntawm ncig obstaclescatthe reflected nthwv dej ntawm radar teeb liab, ua rau tsis tseeb xav txog me me amplitude.
(2) Yuav kom tau txais qhov kev xav tsis tseeb tsawg kawg nkaus, cov cuab yeej raug hloov ua ntej kom tau txais qhov
Qhov zoo tshaj plaws teeb liab (qhov qis tshaj qhov tsis tseeb echo amplitude), thiab tom qab ntawd qhov tsis tseeb echo nkhaus yog tsim.
Daim duab 3-5 Schematic daim duab ntawm lub radar beam chaw geometry ntawm lub ntsuas
● FM daws teeb meem
RD800X Zaus modulation bandwidth ntawm B=5.1GHz, qhov tsawg kawg nkaus kev daws teeb meem
IF teeb liab ntawm RD800X tau soj ntsuam los ntawm nws tus kheej algorithm nrog kev ntsuas qhov tseeb ntawm 0.1mm.
● Distance daws teeb meem (Range Resolution)
Feem ntau hais lus, kev daws teeb meem nyob deb yog hais txog qhov deb npaum li cas ob yam khoom sib nrug, thiab me ntsis radar tuaj yeem paub qhov txawv ntawm ob yam khoom ntau dua li ib qho thiab ntsuas lawv qhov sib txawv.
nyob deb.
Yog tias qhov kev ncua deb ntawm ob yam khoom tsawg dua qhov kev daws teeb meem ntawm cov khoom radar, ces lub radar tsuas tuaj yeem ntsuas tus nqi nyob deb, uas tsis sib npaug rau qhov kev ncua deb ntawm ob qho khoom, tab sis kev sib xyaw ntawm qhov kev ncua deb ntawm ob yam khoom.
● Kev ntsuas qhov tseeb (Qhov tseeb)
Yog tias tsuas muaj ib qho khoom thiab cov khoom txav mus rau qhov deb me me, seb lub radar txoj hauj lwm puas tuaj yeem paub qhov kev ncua deb. Qhov taw qhia uas txiav txim siab qhov kev txav deb ntawm tus kheej cov khoom yog hu ua precision.
DIMENSION
Cim npe nrov: coj wave radar theem transmitter
Xa kev nug
Koj Tseem Yuav Zoo Li
