组建了光声检测系统。
铁路固定设备。轨道设施和维护工具。声检测锤。
Fixed railway installations. Track service and maintenance tools. Sounding hammer.
声测管是灌注桩实行超声检测法时探头进到桩身外部的通道。
Acoustics detection ultrasound screening pile pipe is execute when the probe into the pile body external channel.
实验结果表明，这些措施都能使光声信号增强，有效地提高光声检测的灵敏度。
The experimental results showed that the PA signal enhancement can be obtained by making use of the every one of the factors above, and so the sensitivity of PA detection was increased effectively.
采用数字仿真和数字检测技术，对轴承异常声检测特征量的选择进行了分析讨论。
Adopting the numeric simulation and the numeric detection technique, the analysis and discussion is made for the eigenvector selection in the measurement of abnormal sound of bearings.
传统的检测地下管道漏水的方法是以声—电转换为基础，这使得灵敏度、深度和距离都受到很大限制。
To detect water leaking of underground tube, the traditional method relies on the sound-electricity transformation. Therefore, detection sensitivity, depth and distance suffer great limitation.
声表面波(SAW)传感器能将被测量转换成容易检测的频率信号，即一种准数字信号的输出。
The surface acoustic wave (SAW) sensor can transform the measured object into frequency output, viz a kind of digital signal output.
本文设计了专门用于检测次声武器各项性能的次声波信号采集系统和传输特性分析系统。
In this paper, the signal collection system and analytic system of transmission characteristic of infrasound are designed, which are used for testing the performance of infrasound.
相对于传统的声压水听器矢量水听器检测技术能检测到的包含空间方位信息的声矢量信号。
Compared with traditional transducer, the vector detection technique can get the acoustic vector signal's spatial direction information.
针对含磷毒气快速检测问题，以自制的杂化酞菁钯-聚苯胺为敏感膜材料，设计了一种双信道声表面波(SAW)传感器。
Aimed at the problem of quickly detecting phosphorus-containing toxic gas, we used home-made hybrid PdPc-PANI as the material for sensitive film and designed a binary channel SAW sensor.
在此背景下，本文尝试综述声矢量传感器信号处理研究的当前进展，如信号检测、DOA估计、波束形成等。
Under this background, we try to review recent progress in study on acoustic vector sensor signal processing, such as signal detection, DOA estimation, beamforming, and so on.
结论声刺激检测新生儿听力能代表绝大多数新生儿听力状态，且检测记录方便，理应做为新生儿听力筛查的方法之一。
Conclusions Sound stimulation test is simple, convenient and economic in neonatal hearing screening, so that it is a good method for early detection of hearing disability.
与传统的储粮害虫检测方法相比，害虫的声测报技术作为一种快速、实用的新方法，正日益受到重视。
Compared with traditional inspection methods, the technique of detecting acoustic signals of pests in stored grain is a quick and practical method which is attracting increasing attention.
目的探讨漏声表面波生物传感器液相检测系统的影响因素。
Objective to investigate the influential factors in the detection system of the leaky surface acoustic wave biosensor in liquid phase.
光声技术由于其高灵敏度的特性目前被广泛应用于痕量气体检测领域。
Photoacoustic technology is widely used in fields of trace gas detection due to its high sensitivity.
在三山西大桥拱肋缺陷检测中，通过声时波形参数计算拱肋缺陷的大小，并进行了钻孔验证。
In Sanshan West Bridge arch's defect detection, we calculate the defect's dimension through analysis the wave time and wave shape parameters, and then verify the results by boring a hole.
牛津大学的研究人员周四声称他们已经开发出第一种基因检测疗法，可以用来预测结肠癌患者复发的概率。
Researchers from the University of Oxford announced on Thursday that they have developed the first genetic test for predicting the likelihood that a patient's colon cancer will recur.
摘要：为了解决水下远程目标被动探测问题，提出了一种声矢量圆阵的信源数检测方法。
Abstract: to solve the passive detection problems of underwater remote targets, we propose a method for detecting source Numbers with a uniform circular acoustic vector sensor array.
相对于传统的声压水听器矢量水听器检测技术能检测到的包含空间方位信息的声矢量信号。
The signal detection technique with vector hydrophone measures acoustic vector components comprising the direction information comparing to the traditional hydrophone.
对于某些由开关操作数得出喀呖声率的被测设备，目前大部分检测实验室的断续骚扰分析仪可能会漏计算一些开关操作。
For some of the equipments under test, those click rate are derived from the number of switching operation , some switching opertions maybe omitted unavoidably by the analyzer in most test laboratory.
运用自研的脉搏声谱检测仪，对不同项目和不同水平的运动员在训练前的脉搏声进行了测试。
Pulse sound monitor developed by the authors was applied in testing pulse sounds of athletes of different events and levels before training.
声回波对消中，双端语音检测用以判定远端语音是否混和有近端语音。
Doubletalk detection(DTD) is used to sense whether the far-end speech is corrupted by the near-end speech in echo cancellation.
采用D-S证据理论，提出了利用声激励和超声探头检测金属与非金属粘接状态的融合方法，并进行了验证分析。
This paper Studies and analyzes on data fusion for Ultrasonic adhesive detecting by D-S theory of evidence.
介绍声表面波(SAW)气体传感器原理及其信号处理电路原理，重点设计了传感器的频率检测电路。
The principle of SAW gas sensor and signal processing circuit is discussed, especially a circuit of frequency measurement is designed.
概述超声表面SH波的声场特性、声参数测定方法和检测灵敏度的影响因素及其评价。
The acoustic field characteristics and related parameters determination of surface SH waves are outlined. The factors influence surface SH wave testing sensitivity are evaluated.
所述用于检测血液分析物浓度的系统可以包括光声装置或新陈代谢热整合装置。
The system for detecting blood analyte concentration may include a photoacoustic device or a metabolic heat conformation device.
实验表明，脉冲压缩可有效增加浅海低频声脉冲的传输距离，信道匹配可用于消除多途对脉冲信号检测信噪比的影响。
Experimental results show that low frequency pulse compression and channel match method can be used in shallow water sound channel to improve the SNR.
本文介绍了一种声和光指示的瞬间电脉冲检测器的研制及其特殊用途。
This article discusses the research and special usage of a sound and light indicator of a kind of logic pulse probe.
采用D-S证据理论，提出了利用声激励和超声探头检测金属与非金属粘接状态的融合方法，并进行了验证分析。实验证明，提出的方法是可行的。
This paper Studies and analyzes on data fusion for Ultrasonic adhesive detecting by D-S theory of evidence. The result shows that the fusion method is feasible.
采用D-S证据理论，提出了利用声激励和超声探头检测金属与非金属粘接状态的融合方法，并进行了验证分析。实验证明，提出的方法是可行的。
This paper Studies and analyzes on data fusion for Ultrasonic adhesive detecting by D-S theory of evidence. The result shows that the fusion method is feasible.
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