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固体声
相关语句
  solid state sound
     The Development of the Solid State Sound System for Fault Diagnosis
     固体声故障诊断系统研制
短句来源
     Alarm System Design for Approaching Train Based on Detection of the Solid State Sound
     基于固体声检测的列车接近报警系统设计
短句来源
     Experiment study on an alarm of approaching train based on detection of the solid state sound in rail
     基于钢轨固体声检测的列车接近报警实验研究
短句来源
     In order to make a diagnosis of the operating conditions of bearings in a mechanical system,an ac oustic noise detecting system,including its solid state sound transducer,and a holospectrum analysis of detected signals are developed according to the propagating path of the acoustic noise information flow.
     根据噪声信息流的传播途径研制了固体声传感器和检测系统,并采用全息频谱法分析处理固体声信息,以确定轴承的运行状态。
短句来源
     The paper measured the solid state sound of far pint when a train moving in the rail,and analyzed its wave guide effect,a mending covariance arithmetic is used to analyze the PSD of solid-state sound,the alarm system was designed for forcasting the approaching train base mit.
     分析了列车运行时轮轨激励声及在钢轨中传播的“波导效应”,进行了现场钢轨中固体声信号随列车接近时变化的远点测量,利用改进的协方差算法分析了该固体声功率谱密度,得到列车接近时固体声信号变化特点,设计了一种预报列车接近的报警系统。
短句来源
  the solid state sound
     The Development of the Solid State Sound System for Fault Diagnosis
     固体声故障诊断系统研制
短句来源
     Alarm System Design for Approaching Train Based on Detection of the Solid State Sound
     基于固体声检测的列车接近报警系统设计
短句来源
     Experiment study on an alarm of approaching train based on detection of the solid state sound in rail
     基于钢轨固体声检测的列车接近报警实验研究
短句来源
     The paper measured the solid state sound of far pint when a train moving in the rail,and analyzed its wave guide effect,a mending covariance arithmetic is used to analyze the PSD of solid-state sound,the alarm system was designed for forcasting the approaching train base mit.
     分析了列车运行时轮轨激励声及在钢轨中传播的“波导效应”,进行了现场钢轨中固体声信号随列车接近时变化的远点测量,利用改进的协方差算法分析了该固体声功率谱密度,得到列车接近时固体声信号变化特点,设计了一种预报列车接近的报警系统。
短句来源
  “固体声”译为未确定词的双语例句
     A solid borne sound based method for monitoring and controlling the grinding of hard brittle nonmetal work is presented in the paper.
     提出了非金属硬脆性材料磨削过程监测和控制的新方法——固体声监控。
短句来源
     Solid-Borne Sound Monitoring in Grinding of Hard Brittle Nonmetal Work
     非金属硬脆性材料磨削过程固体声监控
短句来源
     A Theoretical and Experimental Study on the Perturbation of Solid Acoustic Resonator
     固体声谐振子扰动的理论和实验研究
短句来源
     Using Finite Element and Boundary Element Method,the model for prediction of radiated noise of complex structures was constructed,which could be used to calculate sound field parameters,such as radiated sound power,sound pressure,soild sound power and radiation efficiency.
     采用有限元方法和边界元方法建立了复杂结构辐射噪声预测模型,可用于计算辐射声功率、场点声压、固体声和辐射效率等声场特性参数。
短句来源
     In this paper, in the different medium the shocked airborne sound(SARS), the shocked solid-borne sound on the boundary (SSBSB) and the shocked solid-borne sound in : and on the boundary (SSBSS) are measured, and are compared with the sense property in some animals.
     本文对不同介质的受击空气声(SABS)、界面固体声(SSBSB)和沙层固体声(SSBSS)进行了测量,并与某些动物的感觉特性相比较。
短句来源
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A power signal generator with single hoop frequency synthesis is presented for acoustooptic solid-state mode locking devices. The electrical parameters of this generator is given as well as its circuitry and principle of operation. And the technique of design and adjustment are detailed. Finally, the operational principle and block diagram of a power signal generator with double hoop frequency synthesis are outlined.

本文介绍了一种用于固体声光锁模组件中的单环式频率合成功率信号源以及该频率合成功率信号源的电性能指标,电路结构和工作原理,并叙述了单元电路的具体设计与调试方法。 最后简要概述了双环式频率合成功率信号源的工作原理及方框图。

Accrding to the frequency spectrum analysis and the theory of coherence fun ction, set up the mechanical model for the multiple input/single output system, by which the main noise source in the tractor cab can be distinguished. In addition, the ordinary coherence function , multiple coherence function and partical coherence function have been calculated with the help of the Computer Programms which is worked out by ourselves. And through the experiment and analysis the correctness of the mechanical model has...

Accrding to the frequency spectrum analysis and the theory of coherence fun ction, set up the mechanical model for the multiple input/single output system, by which the main noise source in the tractor cab can be distinguished. In addition, the ordinary coherence function , multiple coherence function and partical coherence function have been calculated with the help of the Computer Programms which is worked out by ourselves. And through the experiment and analysis the correctness of the mechanical model has been verified, the main noise source and the main noise transmitting line in the tractor cab have been found.The three conclusions are obtained based on the test: ( 1 ) The main noise frequency in the tractor cab is basic burning frequency of engine. ( 2 ) The main noise source is the solid noise from vibration of the tractor cab and( 3 ) The vibration source of the tractor cab is the engine vibration.Based on the experiment and analysis, the measures to reduce the noise in the tractor cab has been taken and the driver's head noise has been reduced from 96 dB (A) to 90.5dB(A).

本文运用频谱分析和相干函数理论,建立了识别拖拉机驾驶室内主噪声源的多输入单输出力学模型,利用自编程序计算了常相干函数、重相干函数和偏相干函数,并且通过实验分析,验证了力学模型的正确性,确定了驾驶室内主噪声源和主噪声传递通道。 实验分析表明,驾驶室内主噪声频率是发动机的燃烧基频,主噪声源是由驾驶室板件振动辐射出来的固体声,驾驶室的主激振源是发动机的振动。根据分析结果,对驾驶室采取了降噪措施,使驾驶员的耳旁噪声由96dB(A)降低到90.5dB(A)。

In this paper, in the different medium the shocked airborne sound(SARS), the shocked solid-borne sound on the boundary (SSBSB) and the shocked solid-borne sound in : and on the boundary (SSBSS) are measured, and are compared with the sense property in some animals.In the frangibilio-rigid medium (Ⅰ) , the main peak fraqueney and the amplitude of the SABS are obviously higher than that of the medium with low rigidity (Ⅱ) and the medium with low rigidity consisting of the sections (Ⅲ), This suggests that the geographic...

In this paper, in the different medium the shocked airborne sound(SARS), the shocked solid-borne sound on the boundary (SSBSB) and the shocked solid-borne sound in : and on the boundary (SSBSS) are measured, and are compared with the sense property in some animals.In the frangibilio-rigid medium (Ⅰ) , the main peak fraqueney and the amplitude of the SABS are obviously higher than that of the medium with low rigidity (Ⅱ) and the medium with low rigidity consisting of the sections (Ⅲ), This suggests that the geographic difference in the timbre and the intencity of the macroscopic geosound and the hearing effect in ome animals before earthquakes are related to the property of the medium at each local region.The shocked energy(SE) being 3×105 erg, the SSBSB and ihe SSBSS of the medium I may be sensed by pigeons, eats and some insects, but of the medium Ⅱ cats may not sense and of the medium Ⅲ only may be sensed by some insects. the SE being 1.6×106 erg, the SSBSB and the SSBSS of the medium Ⅱ and Ⅲ may be sensed by pigeons, eats, rats and some inseets. The SSBSB and the SSBSS can be caused correspondingly by the energy of small quakes at one magnitude or so before some strong earthquakes, which has travelled to ground surface and attenuated by seven order of magnitudes, and it still may be sensed by these animals, In addition they are related to the property of the medium at each local region.

本文对不同介质的受击空气声(SABS)、界面固体声(SSBSB)和沙层固体声(SSBSS)进行了测量,并与某些动物的感觉特性相比较。脆硬介质(Ⅰ)的SABS的主峰频率和幅值都明显高于低硬介质(Ⅱ)和含断面的低硬介质(Ⅲ)。可见,震前宏观地声的音色和强度的地区差异和某些动物的听觉效应与局部地区的介质特性有关。冲击能量(SE)为3×10~5尔格时,介质Ⅰ的SSBSB和SSBSS可被鸽、猫和某些昆虫觉察到,但介质Ⅱ猫觉察不到,介质Ⅲ只有某些昆虫可觉察到。SE为1.6×10~6尔格时,介质Ⅱ和Ⅲ的SSBSB和SSBSS可被鸽、猫、鼠和某些昆虫觉察到。相当于某些强震前一级左右的小震能量传至地表衰减7个数量级所激起的SSBSB和SSBSS仍有可能被这些动物觉察到,并与局部地区的介质特性有关。

 
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