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- The EMI noise source impedance of an SMPS is essential in EMC design. 开关电源的电磁干扰噪声源阻抗在电磁兼容性设计中是个非常重要的参数。
- impedance of noise source 噪声源阻抗
- The method of noise source identification and location based on Wave Superposition Method(WSM) is proposed. 提出了基于波叠加的噪声源识别和定位方法。
- So it is important to research the noise from photomultiplier itself, for example, different kinds of noise source, noise characters and so on. 也就是说,在一个给定的时间间隔里输出脉冲的计数提供了光子撞击光阴极速率的测量。
- They use a bridge to measure the impedance of the transducer. 他们用电桥来测量传感器的阻抗。
- Abstract: In this paper the main noise source of SQ6450 type light car was judged by means of spectrum and correlation analysis of noise signal.The corresponding proposal reducing noise was presented. 文摘:对SQ6450轻型汽车进行了噪声测试,通过对噪声信号的频谱分析和相干分析,找出了主噪声源,并提出了降噪措施。
- In this paper the main noise source of SQ6450 type light car was judged by means of spectrum and correlation analysis of noise signal.The corresponding proposal reducing noise was presented. 对SQ6450轻型汽车进行了噪声测试,通过对噪声信号的频谱分析和相干分析,找出了主噪声源,并提出了降噪措施。
- She made a lot of noise about the poor food. 她高声抱怨食物太差。
- Technique on noise powerspectrum of aeroengine test is introduced, noise level, primary noise source and characters with the technique of noise powerspectrum of turboprop are discussed. 通过讨论航空发动机试车台噪声的声功率谱分析技术,对某型涡轮螺旋桨发动机试车噪声的声功率谱进行分析,讨论该型发动机的噪声级、主要噪声源及其特征;
- According to the distribution of noise source and characteristics,noise isolation,noise absorpition and muffling are individually applied to each part in accordance with their feature. 根据噪声源的分布及控制特点,分别采用隔声、吸声和消声等噪声控制技术综合利用设计箱体结构。
- The dentist's drill made a lot of noise. 牙钻发出很大的噪音。
- Greening attenuation of noise was affected largely by belt width.For wider tree belt, the inner half close to noise source had more significant effect to reduce traffic noise than the outer half. 交通噪声的绿化衰减同林带宽度有很大关系,对于较宽林带,靠近声源前半部分的林带对噪声有较好的减轻作用,但后半部分的减噪效果较小。
- Use of shield for return current to noise source. 用屏蔽体作为负载电流的返回路径。
- An Investigation of Noise Sources and Me-asure of Noise Control in the City Undergro-und Buildings. Chen Yanxun. 城市地下建筑内噪声源调查及建筑噪声控制措施研讨
- What is the impedance of half wavelength single pole antenna? 直译:一半波长独身者杆的阻抗是什么天线?
- The children were ramping about in the backyard, making a lot of noise. 孩子们在后院哄闹,发出很响的喧哗声。
- It explores the effect of different channels of noise sources,including FEXT,NEXT,HDSL,T1,ISDN,AWGN,to get the relationship between ADSL transmit capacity and length of line. 仿真中参考了6种典型的CSA环路作为分析的依据,讨论了近端串音(NEXT)、远端串音(FEXT)以及高斯白噪声对传输线路的影响,并将ADSL线路和HDSL、T1以及ISDN线路近端串音作了比较,最后得到ADSL信道的传送容量与线路长度的关系曲线。
- S (a software established by the laboratory CRESSON in France).C.H.A.O.S can mark all kinds of noise sources and social sound-scapes in maps following a time sequence. S,通过在一个“时间轴”上标识各种类型的噪声源、各种有“社会-文化”价值的声音场景,实现对城市声音环境的高质量再现。
- It should broadly determine the works district of noise sources and the pollution responsibility of each pollution units,and levy the noise pollution based on different situation. 应从广义上界定噪声源厂界并分清各排污单位的噪声污染责任,根据不同情况采取不同的超标排污费收费标准计征。
- Finally we compare frequency characteristics to rasping degrees by three different frequency domains.The result shows there are about 77% of noise sources have a good match. (4)室内生活噪音之频谱特性,依低频域、中频域及高频域加以分析,与刺耳程度问卷调查结果比较,相似之比例约77%25。