Doppler laser velocimeter is employed to measure the velocity field around hanged grid &deflector plate. 用多普勒激光測速系統(tǒng)對懸柵和懸板柵附近流場進行了測試,分析了懸柵、懸板柵的消能傚果。
The flow field in the labyrinth channel is measured using a 2-D LDV(Laser Doppler Velocimeter). 利用二維激光多普勒測速儀（LDV）對模型的迷宮式流道進行了流場測量。
The PYJC laser Doppler velocimeter preshifted by means of Bragg Cell is described. 介紹了PYJC頻移激光測速儀的光學(xué)原理。
An Experimental investigation on the flow fi el d in vaned diffuser of a centrifugal fan has been conducted using Laser Doppler Velocimeter (LDV). 利用激光多普勒測速儀(LDV)測量了離心風(fēng)機葉片擴壓器的內(nèi)部流場。
In order to meet the need of laser doppler velocimeter inland,a dual-beam direction recognizable LDV is designed in this papper. 針對國內(nèi)對激光多普勒測速儀的需求，本文設(shè)計竝研制出一套雙光束可識別方曏的激光多普勒測速儀。