换能器由阵列微压电结构组成，这种压电材料在合适频率下的振动能够将电信号转换成超声波。
Transducers are made from arrays of tiny piezoelectric structures that convert electrical signals into ultrasound waves by vibrating at an appropriate frequency.
实验中，采用直探头与可变角探头作为超声波换能器做了接收宽带兰姆波信号的对比。
In the experiment, both the normal probe and variable Angle probe are used to receive broadband Lamb wave signals.
研究了超声换能器阵列驱动信号的相位调控精度对阵列聚焦声场的影响。
The effect of phased accuracy of the driving signals for array transducers on focused ultrasound field was studied.
再由压电方程得出与试样直接相耦合的压电换能器的输出信号。
The piezoelectric equation is then used to obtain the output signal of the transducer coupled to the sample.
粗铝丝超声引线键合；换能器驱动电流；信号时频分析；特征提取；质量在线监测。
Aluminum wire ultrasonic bonding; transducer drive current; signal time-frequency analysis; feature selecting; quality online monitoring.
对声速测定(超声)实验中接收换能器在入射波和反射波激励下，换能器的响应信号进行了分析。
The responding signal of the receiving transducer under inspiring by the input supersonic and its reflection wave in experiment of sound velocity measurement is analyzed.
自行设计研制了由超声轮式换能器、驱动系统以及微型计算机控制的信号采集与处理系统组成的管道爬行器。
Together with the wheel probe, the driving system, and the signal collecting and processing system, an automatic pigging system is developed.
由此表明，选择合适的声发射换能器，有助于提高液位检测回波信号的强度。
The result shows that in order to obtain the strong echo signal, a suitable selection of the ultrasonic transducer operating frequency is necessary.
设计了超声波换能器的结构和信号处理电路，能够实现二重气泡监测功能。
The design of structure of ultrasonic transducer and circuit for signal disposing can realize dual air bubbles monitoring function.
方法：采用水听器作为换能器，通过采集超声信号在空间声场内一点的声压波形。
Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound.
方法：采用水听器作为换能器，采集超声信号在空间声场焦平面上一点的声压波形。
Method:A hydrophone is used as energy converting equipment to collect waves of acoustic pressure in the field of ultrasonic.
声学时反镜是指由收发合置的换能器组成的基阵对声源信号进行接收、时间反转和再发送，时反后的信号会在声源处实现聚焦。
Acoustic Time Reversing Mirror(TRM) can be implemented with an array of transducers that listens to a remote sound source and then transmits a time reversed version of what was heard.
通过超声波测试仪发射和接收换能器信号，输出的电压信号送入计算机的A/D卡。
We emit and receive signals fromtransducers by using Measuring Ultrasound Equipment, and then put continent voltages to the A/D card in the computer.
第二换能器(8)可以被安装用来传输第二音频信号。
A second transducer (8) may be provided for transmitting a second audio signal.
同时指出光纤水听器与传统压电换能器在性能指标、信号传输和处理等方面的差异。
At the meantime, the differences in performances, signal transmission and processing and other aspects between optic fiber hydrophone and traditional piezoelectric transducer have been given.
本文是研制超声相控阵换能器动态聚焦系统，它包括数字式多通道信号发射系统和两种超声相控阵换能器。
This paper focuses on developing a digital ultrasonic phased array transducer system which can realize the focusing and scanning of sound beams.
换能器(14)被布置用来再现大体上彼此异相的两个音频信号。
A transducer (14) is provided for reproducing two audio signals which are substantially out of phase with each other.
它是利用超声换能器的振动产生的超声波与弹性介质相互作用，从而携带大量有关材料性能的信息，这种信息以超声回波信号的形式被接收到。
By interaction between ultrasonic waves and elastic medium, it has carried much information of material, which are received in the form of ultrasonic echo signals.
被动测距声纳系统是利用换能器基阵接收的目标辐射（噪声）信号来估计目标距离。
The system of passive ranging SONAR makes use of the target noise received by the equipment which converts energy from one form to another to estimate the target distance.
由此设计的超声换能器，其输出信号的幅度达8 ~10v。
From this, the ultrasonic energy transducer is desired and the output signal is around 8 ~ 10v.
所述超声仪构造成，基于在第一对换能器之间传输的声信号来确定诊断数据。
The ultrasonic meter is configured to determine diagnostic data based on acoustic signals transmitted between the first transducer pair.
它是利用超声换能器的振动产生的超声波与弹性介质相互作用，从而携带了有关材料组织性能的信息，这种信息随同超声回波信号被接收到。
By interaction between ultrasonic waves and elastic medium, it carries much information of material, which is received in the form of ultrasonic echo signals.
驱动电路与STOP信号转换电路是根据换能器的发射接收原理设计的分频、选择、比较电路。
The drive module and STOP signal conversion module are sub-frequency, select and comparison circuit based on the transducer's launch and reception principles.
超声换能器是把超声电信号转换成超声振动信号作用于人耳后的乳突骨。
The system also includes a transducer for converting the ultrasonic frequency electric signal to an ultrasonic inertial vibration.
为了客观地反应噪声信号的频谱结构，对井下噪声换能器的频谱响应特性提出了一定的要求。
Requirements for the characteristics of frequency response of the noise transducer are put forward so as to analyze the actual spectrum structure of noise.
一对换能器(10,32)也被提供并被安排用来再现包括所述两个音频信号之间的差的信号。
A pair of transducers (10, 32) is also provided and arranged to reproduce a signal comprising the difference of the two audio signals.
所述信令机构响应于来自压力换能器表示探测到压力改变的信号，将位置改变探测信号发送到所述主机。
A signaling mechanism sends a repositioning detection signal to the host in response to a signal from the pressure transducer indicating the detection of the pressure change.
因此，本换能器的瞬态回应极佳，声电信号变换，无论从低频到高频；
Due to the extremely low mass of the ribbon, the transducer of this microphone boasts a premium transient response in converting acoustic energy into electronic signals.
换能器发出的超声信号携带输入的音频信号信息，在空气中发生非线性作用，解调为可听声。
The ultrasonic signal which is emitted from the transducer carries the input audio signal information, does the nonlinear interaction in the air and is demodulated into audible sound.
一声频定向换能器，以定向发射超声波给接听者，其中该超声频段部分经空气自解调而还原为原音频信号。
Because the ultrasonic wave has the directivity, the audible audio frequency demodulated from the interior of the ultrasonic wave also has the directivity and forms a directional audible sound.
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