查询词典 anemometer

The sand fixed hedge has been using at Taiwan's coastally, how is the best desing for different from angle between main hedge and wing hedge, it is still no results. In this study, there are two part of experiment that are field study and wind tunnel. The field study is analysis by BSNE sand sampler and multi-layer anemometer at Yuanli coastally, the wind tunnel experimental that study different length and angle of hedge.

中文摘要堆砂篱於台湾沿海虽已被广泛使用，然堆砂篱是否需要大面积全面铺设，才能获得最显著功效；主篱与翼篱之间夹角应如何规划，才能达到最佳化设计，至今尚无具体结果，为能深入探讨本研究分为现地及风洞试验，现地试验以苑里沿海为试区，架设BSNE垂直集砂器及多层风速计等进行观测；风洞试验则依翼篱长度与角度从事模型吹砂试验。

A hotwire anemometer was used to measure the jet velocity at the exit of the precessing jet nozzle and the power spectrum density was obtained afterwards in order to analyze the precessing feature of the jet. It is shown that an obvious precession motion is generated in a nozzle even with a large expansion ratio E=10 and a small length-to-diameter ratio LD=2. The precessing frequency is mainly dependent on the nozzle diameter and the intake flow rate, increasing with the enhancement of the flow rate and with the reduction of nozzle diameter.

采用热线风速仪测量旋进喷嘴出口射流的速度，并对该射流进行功率谱分析以研究其旋进特性，结果表明，实验所用的膨胀比E=10、长径比L/D=2的喷嘴同样能产生明显的旋进射流，旋进频率主要取决于喷嘴的尺寸和射流的流速，并随流速的增大和喷嘴直径的减小而增大。

Equipment ability: imported portable testing equipments, 1027-radon detector, CO infrared analyzer, cp 3800, TSP-large flow PM10 sampler, UV8500 double beam UV-visible spectrophotometer, air sampling device, laser dust particle counter, hot-anemometer, air particle counter, Stone and other radioactive detector.

设备能力：测氡仪、CO红外分析仪、气相色谱仪、TSP-PM10大流量采样器、双光束紫外可见分光光度计、大气采样器、浮游微生物采样器、激光尘埃粒子计数器、热球风速计、空气粒子计数器、石材放射性检测仪等。

In order to study the intake air flow characteristics in four-valve diesel engines, in this dissertation hot-wire anemometer and PIV twodimension instantaneous measuring technique are used. Extensive experimental study on two intake valve exit flow fields and longitudinal section flow field in cylinder are performed for different type of diesel engines. Great researching progress have been made on the interaction between two intake ports, and the formation process of in-cylinder swirl and flow field structure of cross and longitudinal section for four valve diesel engines. These results are presented in China for the first time and without such kind of research work reported abroad as detailed and deepgoing as this dissertation. The author designs and makes a set of hot wire measuring velocity device to measure the velocity distribution around the intake valve annulus and the cross section flow field in cylinder.

为了研究四气门柴油机进气过程中气体流动的变化规律，本文利用热线测速和PIV二维瞬态测速技术，对四气门柴油机两进气门出口全圆周流速场和缸内横、纵剖面的气体流动流场进行了大量的试验研究，在四气门柴油机两进气道之间相互影响的变化规律，缸内涡流的形成过程及缸内横、纵剖面流场结构等方面取得了重大的研究进展，这一研究工作在国内尚属首次，在国外也未见有如此全面、深入的研究报道。

Products covered by the company dewpoint meter / dew point transmitter, portable / fixed toxic gas detector, combustible gas detector, gas detector-one, ambient air quality monitoring / surveillance systems, a variety of toxic and hazardous gas monitoring and analytical instruments, sensors and anemometer wind speed, wind direction and wind direction sensors and instruments, gas analyzers / smoke detector and so on.

公司产品涵盖了露点仪/露点变送器、便携式/固定式有毒气体检测仪、可燃性气体检测仪、五合一气体检测仪、环境空气质量监测仪/监测系统、各种有毒有害气体的监测及分析仪器、风速传感器及风速仪、风向传感器及风向仪、气体分析仪/烟气检测仪等。

The wind measurement system 10 includes an anemometer and a wind vane, which monitors real-time wind situations and sends the signal to the wind turbine control system.

风测量系统10包括风速仪和风向标，监测即时风况，并将信号传给风机控制系统。

Other anemometer types include ultrasonic or laser anemometers which detect the phase shifting of sound or coherent light reflected from the air molecules.

此外，还有超声和激光测风仪，分布利用声音的相位移和空气分子光的相干来测风。

The performance curves of the experimental fan have been obtained and the flow field has been measured at the best efficiency point of each setting angle, in fixed plane downstream the rotor with a constant temperature hot-wire anemometer and a periodic multisampling and averaging technique by an on-line microcomputer.

对轴流式通风机在不同安装角时的流场变化进行了实验研究，得到了通风机的总性能曲线；并用固定在转子前、后测量平面的热线，测量了最高效率点处不同安装角时叶片通道进、出口轴向和切向速度的分布，从而能够清楚地了解到，通风机在安装角变化时，叶片通道进、出口截面流动结构的变化。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。