Taw qhia rau khob Anemometer thiab Propeller Anemometer
Khob anemometer
Nws yog hom anemometer feem ntau. Lub rotating khob anemometer yog thawj zaug tsim los ntawm Robinson hauv tebchaws Askiv. Thaum ntawd, muaj plaub khob, ces peb khob tau siv. Peb lub khob 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 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 khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Nyob rau hauv qhov kev txiav txim ntawm cua quab yuam, lub khob cua rotates nyob ib ncig ntawm nws axis, thiab nws rotational ceev yog proportional rau cua ceev. Qhov ceev tuaj yeem kaw los ntawm kev sib cuag hluav taws xob, tachogenerators lossis photoelectric txee.
Ntiv nplhaib anemometer
Nws yog ib qho anemometer nrog ib txheej ntawm peb lossis plaub lub ntsej muag rotating ib ncig ntawm kab rov tav. Lub kiv cua yog mounted rau pem hauv ntej ntawm ib tug cua vane thiaj li hais tias nws rotating dav hlau yog ib txwm tig mus rau cov kev taw qhia ntawm cua los ntawm lub anemometer, thiab nws rotational ceev yog proportional rau cua ceev.
Lub hauv paus ntsiab lus ntawm anemometer yog dab tsi?
Lub anemometer yog ib qho cuab yeej siv los ntsuas cua ceev. Muaj ntau hom. Khob anemometers feem ntau yog siv nyob rau hauv huab cua chaw nres tsheb.
Nws muaj peb lub khob conical khoob khoob khoob khov kho rau ib leeg ntawm 120 degree rau kev txhawb nqa.
Tag nrho qhov kev hnov qab yog mounted ntawm ib txoj kab ntsug ntawm kev sib hloov. Nyob rau hauv qhov kev txiav txim ntawm cua, lub khob cua rotates nyob ib ncig ntawm nws axis ntawm ib tug ceev proportional rau cua ceev.
Lub hauv paus ntsiab lus ntawm ib qho anemometer yog muab cov hlau nyias nyias rau hauv cov kua dej thiab siv cov hluav taws xob tam sim no kom sov cov hlau saum qhov kub ntawm cov kua. Vim li no, anemometers raug xa mus rau "kub xov hlau".
Raws li cov kua dej ntws los ntawm cov xaim hauv txoj kab ntsug, nws tshem tawm qee qhov cua sov ntawm cov hlau thiab txo qhov kub ntawm cov hlau.
Raws li txoj kev xav ntawm kev quab yuam convection hloov hluav taws xob, nws tuaj yeem txiav txim siab tias muaj kev sib raug zoo ntawm qhov kub poob Q ntawm cov kab kub thiab qhov nrawm v ntawm cov kua.
Tus txheej txheem kub hlau sojntsuam muaj ob qhov kev txhawb nqa tuav taut los ntawm cov xov hlau luv luv. Hlau hlau feem ntau yog ua los ntawm platinum, rhodium, tungsten thiab lwm yam hlau nrog cov ntsiab lus melting siab thiab zoo ductility.
Qhov feem ntau siv hlau txoj kab uas hla yog 5μm thiab qhov ntev yog 2 hli; qhov me me txoj kab uas hla tsuas yog 1μm thiab qhov ntev yog 0.2mm. Raws li lub hom phiaj sib txawv, cov xov hlau kub sojntsuam kuj tuaj yeem ua rau ob lub xaim, triple hlau, kab pheeb ces kaum, V-puab, X puab thiab lwm yam.
Txhawm rau txhim kho lub zog, qee zaum cov yeeb yaj kiab hlau yog siv los hloov cov hlau hlau, thiab txheej txheej ntawm cov yeeb yaj kiab hlau feem ntau yog txau rau ntawm cov hluav taws kub insulating substrate, uas yog hu ua cov yeeb yaj kiab kub sojntsuam.
Kub hlau sojntsuam yuav tsum tau calibrated ua ntej siv. Static calibrations yog ua nyob rau hauv tshwj xeeb txheem cua tunnels.
Ntsuas qhov kev sib raug zoo ntawm tus nqi ntws thiab cov zis voltage thiab npaj nws raws li tus qauv nkhaus.
Dynamic calibration yog ua nyob rau hauv ib tug paub pulsating txaus teb, los yog ntxiv rau lub anemometer cua sov voj.
Lub teeb liab pulsating hluav taws xob yog siv los xyuas qhov zaus teb ntawm cov xov hlau kub anemometer. Yog hais tias qhov zaus teb tsis zoo, nws tuaj yeem txhim kho tau los ntawm kev siv cov nyiaj them rov qab.
