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transducer
相关语句
  换能器
    CALCULATION METHOD OF EQUIVALENT MASS OF TRANSDUCER WITH PER-FORATED STRUCTURE
    多孔结构换能器等效质量的计算方法
短句来源
    TRANSDUCER USED IN SEISMIC ULTRASONIC MODEL EXPERIMENT
    地震超声模型实验中的换能器
短句来源
    Origin of the Source Function of A Thin Spherical Shell Transducer and its Characteristics Analysis
    薄球壳换能器的源函数来源和特性分析
短句来源
    Multi-component Transducer
    多分量换能器
短句来源
    Theoretical Relationship Between Electric driving Signal and Radiated Acoustic Wave for Thin Shell Transducer.
    薄球壳换能器的电驱动信号与辐射声波之间的理论关系
短句来源
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  “transducer”译为未确定词的双语例句
    Study on Transducer Technology of Micro-Vibration Measurement with Grating
    光栅微振动测试传感技术的研究
短句来源
    New Developments in Transducer Technique and Its Application to Comprehensive Earthquake Observations (An Overview)
    换能技术及其在地震综合观测中应用的新进展(综述)
短句来源
    SYMPOSIUM ON DIGITAL DATA ACQUISITION AND TRANSDUCER TECHNOLOGY HELD IN WUHAN,NOV. 25-27, 1987
    数据采集和传感技术学术讨论会
短句来源
    Pressure Transducer with Quartz Crystal and Its Application in Well Logging.
    石英晶体测压探头及其在测井中的应用
短句来源
    On Transmitting Transducer of Far Detecting Acoustic Logging Tool
    远探测声波测井仪发射探头研究
短句来源
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  transducer
The conditioning force was monitored by a force transducer, while the modified wheel surface status was in-situ monitored by a coaxial optical distance measurement system.
      
Design of a piezoelectric transducer cylindrical phase modulator for simulating acoustic emission signals
      
To conveniently carry out the pipeline leak experiment in a laboratory, leak acoustic signals are simulated by using the converse piezoelectric effect of a piezoelectric transducer (PZT) cylindrical phase modulator.
      
Ultrasonic linear motor using the L-B mode Langevin transducer with an exponential horn
      
An ultrasonic linear motor is proposed and fabricated by using the longitudinal and bending vibration double mode bolt-clamped Langevin type transducer to meet high power and speed requirements in the aerospace and semiconductor industries.
      
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The character of a transmitting source plays an important part in seismic model experiments for obtaining a distinct wave form with short duration on the receiving record. The present paper describes two kinds of transmitting sources: the source of central expanding force and the source of normally concentrated force. A cylindrical piezo-electrical crystal of barium titanate inserted in the central hole of a circular plate was used as the source of a central expanding force. It is found when the initiating electrical...

The character of a transmitting source plays an important part in seismic model experiments for obtaining a distinct wave form with short duration on the receiving record. The present paper describes two kinds of transmitting sources: the source of central expanding force and the source of normally concentrated force. A cylindrical piezo-electrical crystal of barium titanate inserted in the central hole of a circular plate was used as the source of a central expanding force. It is found when the initiating electrical pulse has a time duration corresponding to one cycle of the radial resonant frequency of the crystal, the received seismogram shows the most distinct wave form with short duration. A rod type transducer of barium titanate in contact with the edge of a semi-circular plate with a thickness of 2mm was used as a source of normally concentrated force. It is found that when the diameter of the transducer is less than 5mm, the directional effect of intensity is similar to that of a point source. In general, this kind of transducer will produce a satisfactory wave form in the receiving record. The detector consisting of a barium titanate cylinder attached to the end of a brass rod with the same diameter were used in all the experiments.

本文討論二維模型試驗所用的二种振源:扩张中心型的振源和垂直集中力型的振源。扩张中心型的振源系用压电钛酸鋇短柱体的径向伸縮,以柱面为发射面而得到的。实驗証明,柱面上的伸縮主要是由直径决定的单頻振动。因此,用寬度相应于径向振动周期的矩形电脉冲来激发晶体时,可以消除由晶体自由振动所造成的“余震”,从而得到短暫的声脉冲。单力型振源是一个用钛酸鋇晶体和黄銅棒制成的杆状发射器。这种发射器在工作頻率范围內,实际上是一个非周期性器件,因此不存在器件的自由振动問題。在实驗中研究了三种不同直径杆状发射器的发射强度与波形同发射方向角间的关系。

The use of perforated structure can increase the bandwidth transducer, which is a new theoretical problem in designing transducer devices. This paper indicates that the decrease of equivalent mass that arises from drilling holes in the radiating block of transducer is the main cause of making transducer more bandwidth.It is difficult for transducer of drilling holes in the radiating block to solve vibration velocity distribution using usually analysed method. In this paper we use...

The use of perforated structure can increase the bandwidth transducer, which is a new theoretical problem in designing transducer devices. This paper indicates that the decrease of equivalent mass that arises from drilling holes in the radiating block of transducer is the main cause of making transducer more bandwidth.It is difficult for transducer of drilling holes in the radiating block to solve vibration velocity distribution using usually analysed method. In this paper we use finite element method to obtain the numerical solution of vibration velocity and to calculate equivalent mass and bandwidth of transducer. The mentioned method can be used in calculating equivalent mass of piezoelectric sandwich or compex transducer along axis perforaiton in front of radiating block or in the middle of radiating block.

利用多孔结构增加换能器频带宽度,是换能器设计方面的一个新的理论问题。本文指出,换能器辐射块钻孔引起等效质量的减少,是导致频带变宽的主要原因。 对园台形辐射块钻孔的换能器,用一般解析法求其振速分布是困难的。本文采用有限元方法求其振速的数值解,并算出了换能器的等效质量及带宽变化。该计算方法同样适用于辐射块前端或中间沿轴向钻孔的复合式和夹心式压电换能器等效质量的计算。

In this paper a reciprocity method of calibrating electromechanical transducers and seismographs by external mechanical loading reactance is discussed. It gives a description of the principle of the method and then its applications in calibrating an electromechanical transducer and an electromechanical seismograph produced by the Peking Shunhu Vibration Instrument Factory. The results agree quite well with that given by calibration on shaking table.

本文讨论了一种外加机械负载来标定电动式机电换能器和地震仪的互易法.介绍了互易法的原理.并对北京宣武测振仪器厂生产的电动换能器和电动地震仪进行了标定.结果表明,互易法标定与振动台标定符合较好.

 
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