三叶虫在房屋周围飞来飞去，发出超声波信号，绘制出房间的地图，以备日后清洁时使用。
The Trilobite scuttles around homes emitting ultrasound signals to create maps of rooms, which are remembered for future cleaning.
超声波传感器发射和接收超声波信号。
Ultrasonic sensors are transmitting and receiving ultrasonic signals.
庞贝表明正确的超声波信号产生的各种声音都可以听见。
The correct ultrasound signal, Pompei suggests, can produce any kind of audible sound.
超声波信号穿过所有常见的金属和塑料管材。
The ultrasonic signal travels through all common metal and plastic pipe materials.
介绍了激光超声的机理、光激超声波信号的检测方法及其应用。
Principle and testing method of laser generated ultrasonic and its applications are introduced.
研究过程中设计的超声波轮式探头，发出超声波信号测量管道壁厚。
A roller ultrasonic probe was designed in the subject, and it sends ultrasonic wave to detect the pipe wall's thickness.
采用数字手段测取了超声波信号的衰减系数，通过衰减系数可得出含沙量。
By using the digital means, the attenuation coefficient of the ultrasonic signal is measured, through which the sediment content can be obtained.
通过发射超声波信号进入管壁，然后分析反射信号，这是能够确定金属的厚度。
By emitting ultrasound signals into the pipe walls and then analyzing the reflected signals, it's able to determine the thickness of the metal.
当舱口盖被关闭时，产生的超声波信号的发射器被放置在货舱(空或装载货物)里发射超声波。
After the hatch covers are closed, a transmitter generating an ultrasonic signal is placed in the cargo hold (empty or loaded with cargo) emitting ultrasonic waves.
本文建立了沿不同方向的多个超声波信号作用下的多维声光衍射的耦合波方程，并求出相应的解。
A set of coupled wave equations for multiple dimensional acoustooptic diffraction with multiple acoustic waves along different directions is put forward and its solutions are derived.
自动增益控制算法中的峰值检测算法使用信号能量的方法可以快速有效的测量得到超声波信号的峰值。
By using the peak detection algorithm in automatic gain control algorithm, we make use of the signal energy to measure the peak value of ultrasonic signal quickly and efficiently.
本文从超声波信号模型出发，对超声电视测井井下仪器的接收机、发射机的指标和方位检测精度进行了详细分析。
With a model for the ultrasonic signal, the requirement on receiver and transmitter performance and the detection accuracy of the bearings of an ultrasonic borehole televiewer are discussed.
笔者采用数字手段去测取超声波信号的频差，通过频差法可得出流体的平均速度，进而获得高含沙量流体的流量。
A digital signal processing way is established to obtain ultrasonic signal frequency shift in the test of high sand content fluid flow.
对超声波信号检测采用本文提出的这种软硬件结合的预处理措施，结果显示能达到满足的抑制各种噪声和干扰的效果。
This combinational way of software and hardware to pre-process the receiving ultrasonic signals demonstrates the capacity to suppress noise and interferences efficiently.
在研究了超声波信号的产生、接收电路的基础上，分析了提高测量精度的关键在于如何精确地寻找到超声波回波信号的起点时刻。
Based on studying the generating and receiving circuit of ultrasonics, this dissertation analyzes that the key to improve measuring accuracy is how to seek the starting time of ultrasonic echo signal.
其他的室内定位系统尝试通过使用无线电，超声波或者红外信号来给用户定位。
Other indoor positioning systems try to find a user's position using radio, ultrasound or infrared signals.
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.
雷达信号可以穿透包含灰尘或蒸汽的蒸汽空间，这对于超声波装置是有问题的。
Radar signals can penetrate vapor space containing dust or steam which is problematic for ultrasonic devices.
超声波能产生脉冲信号，用以检测金属中各种缺陷。
Ultrasonic waves produce pulsed signals, by means of which various defects in metal can be detected.
这个实验的一部分，研究者也将同时发送给沃里克一些大脑通常不能处理的信号，例如X射线，超声波和红外数据，以观测他的大脑如何处理这些信号。
In a portion of the experiment, researchers will also send Warwick signals that the brain can't usually process, such as X-ray, ultrasound, and infrared data, to see how his mind handles them.
在超声波探伤信号耦合的理论和方法上，填补了国内空白。
The theory and method of ultrasonic inspection signal coupling have filled the country blank.
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.
与采用超声波、电容作为传感器的相关测量法相比，利用压力传感器测量压力脉动随机信号的相关测量法成本较低。
Compared with correlation measure by adopting ultrasonic and capacity as sensor, it has lower cost that adopting random signal of fluctuating pressure by pressductor measured.
这些功能的实现是通过系统中电控部分的电源、时钟、存储、超声波脉冲信号发生、处理、温度采集、串行通信电路实现的。
These functions are realized by the circuits of power, clock, memory, ultrasonic pulse signal occurs and handle, temperature gathered and serial communication in system.
设计了超声波传感器及信号转换与处理电路，并设计了相应的检测软件，在此基础上进行了浓度检测实验。
The ultrasound sensor, the signal transform and treatment circuits are designed. The testing software is developed. Then the experiments for the concentration testing are made.
对模拟量超声波传感器的输出信号进行了数字滤波。
The digital filter was done to the output signal of the analog ultrasonic sensor.
介绍一种便于工业现场使用的超声波检验仪，其快速自动信号分析功能可以降低对操作环境的要求。
An ultrasonic instrument for industrial field application is presented. Its fast automatic signal analysis function can decrease the requirements for operation circumstances.
介绍车轮超声波探伤信号数字化处理的研究，以及系统的设计思想、构成和现场应用效果。
Research on the signal digitalization processing for ultrasonic inspection of train wheels is described including the design idea, composition and application results of the system.
外监护。通过集中超声波束于胎儿心脏来描记胎心率，胎儿监护翻译多普勒信号。
B. External fetal monitoring. The FHR is measured by focusing an ultrasound beam on the fetal heart. The fetal monitor interprets Doppler signals.
超声波缺陷信号的定量分析虽然已经有过较多的研究，但能符合工程要求的却不多。
Although previous researches on quantitative analysis of ultrasonic defective echoes have been done, few can meet the engineering requirements.
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