Kev piav qhia ntawm plaub hom anemometers
1 Anemometer. Ib tug hlau hlau rhuab los ntawm ib tug hluav taws xob tam sim no dissipated los ntawm cov cua ntws. Cov cua kub dissipation yog linearly ntsig txog lub hauv paus square ntawm cua ceev, thiab ces linearized los ntawm ib tug hluav taws xob Circuit Court (kom yooj yim calibration thiab nyeem ntawv) los tsim ib tug anemometer. Muaj ob hom kev ntsuas cua nrawm: sab cua sov thiab cua sov ncaj qha. Sab cua kub hom feem ntau yog ua los ntawm manganese tooj liab hlau, nrog rau qhov kub thiab txias coefficient nyob ze rau xoom, thiab nws yog nruab nrog ntsuas kub ntsuas ntawm nws qhov chaw. Cov cua sov ncaj qha feem ntau yog ua los ntawm cov hlau platinum, uas tuaj yeem ntsuas nws tus kheej qhov kub thiab txias thaum ntsuas cua ceev. Lub anemometer muaj qhov rhiab heev ntawm qhov cua qis thiab tsim nyog rau kev ntsuas cua me me. Nws lub sij hawm tas li tsuas yog ob peb feem pua ntawm ib thib ob, ua rau nws yog ib qho cuab yeej tseem ceeb rau huab cua turbulence thiab kev ntsuas huab cua ua liaj ua teb.
2 cua khob anemometers. Nws yog ib hom anemometer. Lub anemometer rotary * tau tsim los ntawm Robinson hauv tebchaws Askiv thaum ntxov, nws yog plaub khob, thiab tom qab ntawd hloov mus rau peb khob. 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. Nyob rau hauv qhov kev txiav txim ntawm cua, lub khob cua rotates nyob ib ncig ntawm nws axis, thiab nws ceev yog proportional rau cua ceev. Qhov ceev tuaj yeem kaw tau siv cov hluav taws xob tiv tauj, ntsuas ntsuas lub tshuab hluav taws xob, lossis cov txee photoelectric.
3 acoustic anemometers. Cua ceev tivthaiv nyob rau hauv cov kev taw qhia ntawm lub suab yoj propagation yuav nce (los yog txo) qhov ceev ntawm lub suab nthwv dej propagation, thiab acoustic anemometers uas siv cov yam ntxwv no yuav siv tau los ntsuas cov cua ceev tivthaiv. Lub acoustic anemometer muaj tsawg kawg yog ob khub ntawm kev hnov lus, txhua khub nrog rau tus hais lus thiab tus txais. Ua kom lub suab nthwv dej ntawm ob tus neeg hais lus tshaj tawm nyob rau hauv qhov sib txawv. Yog hais tias ib pawg ntawm cov suab nthwv dej propagates raws cov cua ceev tivthaiv thiab lwm pab pawg neeg propagately tawm tsam cua, lub sij hawm sib txawv ntawm ob lub receivers tau suab pulses yuav proportional rau cov cua ceev tivthaiv. Yog tias ob khub ntawm cov khoom raug teeb tsa ib txhij nyob rau hauv kab rov tav thiab ntsug cov lus qhia, kab rov tav cua ceev, cua kev taw qhia, thiab ntsug cua nrawm tuaj yeem suav cais. Vim muaj qhov zoo ntawm kev cuam tshuam kev cuam tshuam thiab kev coj zoo ntawm ultrasound, qhov zaus ntawm lub suab tsis tawm los ntawm acoustic anemometers feem ntau yog nyob rau hauv ultrasound band.
4 kiv cua hom anemometer. Nws yog ib qho anemometer nrog ib txheej ntawm peb lossis plaub lub ntsej muag rotating ib ncig ntawm kab rov tav axis. Lub kiv cua yog ntsia rau pem hauv ntej ntawm lub cua vane, thiaj li hais tias nws rotating dav hlau yog ib txwm tig rau ntawm cua, thiab nws ceev yog proportional rau cua ceev.
