Taw qhia rau kev siv anemometer
1. Ua ntej siv, saib seb lub pointer ntawm ammeter taw tes rau xoom point. Yog tias muaj qhov sib txawv, maj mam kho cov ntsia hlau hloov kho ntawm lub ammeter kom lub pointer rov qab mus rau xoom point;
2. Muab qhov hloov kho hauv qhov chaw tawm;
3. Ntxig lub ntsaws ntawm lub ntsuas ntsuas rau hauv lub qhov (socket), tso lub ntsuas ntsuas vertically upward, nias lub ntsaws ntsaws ntsaws ruaj ruaj kom kaw qhov kev sojntsuam, muab qhov "calibration hloov" ntawm qhov chaw tag nrho, thiab maj mam kho qhov "tag nrho cov kev hloov kho" pob qhov rooj kom tus pointer ntawm lub ' meter ' taw tes rau tag nrho cov nplai. degree txoj hauj lwm;
4. Muab lub "calibration hloov" ntawm "zero txoj hauj lwm", thiab maj mam kho ob lub pob qhov rooj ntawm "txhim kho qhov ntxhib" thiab "kev hloov kho kom zoo", kom lub pointer ntawm ammeter taw tes rau xoom txoj hauj lwm.
5. Tom qab cov kauj ruam saum toj no, maj mam rub lub ntsia hlau ntsaws kom nthuav tawm qhov kev sojntsuam ntawm lub ntsuas pas ntsuas (qhov ntev tuaj yeem xaiv tau raws li qhov xav tau), thiab ua kom lub ntsiab lus liab ntawm qhov kev sojntsuam ntsib lub cua kev taw qhia. Raws li kev nyeem ntawv ntawm lub ntsuas hluav taws xob, tshawb xyuas qhov ntsuas qhov nkhaus kom paub qhov ntsuas cua ceev;
6. Tom qab ntsuas tau ob peb feeb (kwv yees li 10 feeb), cov kauj ruam 3 thiab 4 saum toj no yuav tsum tau rov ua dua ib zaug kom ntsuas qhov ntsuas tam sim no hauv lub ntsuas.
7. Tom qab kev ntsuas, "calibration hloov" yuav tsum muab tso rau hauv qhov chaw tawm.
Lub anemometer yog ib qho ntsuas ntsuas ceev uas hloov cov teeb liab ntws tawm mus rau hauv cov teeb liab hluav taws xob, thiab tuaj yeem ntsuas cov dej kub lossis qhov ntom ntom. Lub hauv paus ntsiab lus yog hais tias ib tug nyias hlau hlau rhuab los ntawm hluav taws xob (hu ua kub hlau) yog muab tso rau hauv lub airflow, lub tshav kub dissipation ntawm kub hlau nyob rau hauv lub airflow muaj feem xyuam rau cov khiav ceev, thiab lub tshav kub dissipation ua rau kub hloov ntawm lub cov hlau kub ua rau muaj kev hloov pauv hauv kev tiv thaiv, thiab cov teeb liab ntws tawm tau hloov mus rau hauv hluav taws xob teeb liab.
Nws muaj ob hom kev ua haujlwm:
①Txoj kev ntws tsis tu ncua. Tam sim no los ntawm cov hlau kub tseem nyob tas li. Thaum qhov kub thiab txias hloov, qhov tsis kam ntawm cov hlau kub hloov, yog li qhov hluav taws xob hla ntawm ob qhov kawg hloov, yog li ntsuas qhov ntws ntws;
② Hom kub tsis tu ncua. Qhov kub ntawm cov hlau kub yog khaws cia tsis tu ncua, xws li 150 degree, thiab tus nqi ntws tuaj yeem ntsuas raws li qhov xav tau tam sim no. Cov hom kub tsis tu ncua yog siv dav dua li hom ntws tsis tu ncua. Qhov ntev ntawm cov hlau kub yog feem ntau nyob rau hauv thaj tsam ntawm 0.5-2 hli, txoj kab uas hla yog nyob rau hauv thaj tsam ntawm 1-10 microns, thiab cov khoom yog platinum, tungsten los yog platinum-rhodium hlau alloy. Yog tias nyias nyias (thickness tsawg dua 0.1 micron) cov yeeb yaj kiab hlau siv los hloov cov hlau hlau, nws yog cov yeeb yaj kiab kub anemometer, uas muaj cov haujlwm zoo sib xws rau cov hlau kub, tab sis feem ntau yog siv rau ntsuas qhov ntws ntawm cov kua. Ntxiv rau qhov zoo tib yam ib leeg-xaim, cov hlau kub kuj tseem tuaj yeem ua ke ob-xaim lossis peb-xaim hom los ntsuas qhov nrawm ntawm txhua qhov kev qhia. Cov hluav taws xob teeb liab tso tawm los ntawm tus xov tooj hotline yog nkag mus rau hauv lub computer tom qab amplification, them nyiaj thiab digitization, uas tuaj yeem txhim kho qhov ntsuas qhov tseeb, tuaj yeem ua tiav cov ntaub ntawv tom qab ua tiav cov txheej txheem, thiab nthuav cov kev ntsuas ceev, xws li ua tiav cov nqi tam sim thiab lub sij hawm nruab nrab tus nqi, ua ke ceev thiab ib nrab ceev, thiab turbulence. thiab lwm yam kev ntsuas ntawm turbulence parameters. Piv nrog rau lub pitot raj, lub kub hlau anemometer muaj qhov zoo ntawm me me sojntsuam ntim, kev cuam tshuam me me rau qhov chaw ntws, cov lus teb ceev ceev, thiab tuaj yeem ntsuas qhov nrawm nrawm; tuaj yeem ntsuas qhov nrawm nrawm (xws li qis li 0.3 m / s).
