Ultrasonic power ultrasonic frequency may adjust according to the needs.
超声功率与超声频率可根据需要调整。
Ultrasonic power and ultrasonic frequency may adjust according to the needs.
超声功率与超声频率可根据需要调整。
The good news is that because this call has an ultrasonic frequency, we are unable to hear it.
好在这些声音是超声波频率，所以我们听不到这些声音。
Experiment showed control the direction of laser could be controlled by changing ultrasonic frequency.
实验证明，通过改变超声频率可实现对激光光束方向的控制。
And a ultrasonic generator with ultrasonic frequency and power adjustment is designed, as well as its portable shell.
设计超声波发生电路和超声波换能器的外壳，使超声波发生器方便携带。
The system also includes a transducer for converting the ultrasonic frequency electric signal to an ultrasonic inertial vibration.
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 effects of ultrasonic frequency, ultrasonic intensity, cleaning time, cleaning temperature on oil sand separating were investigated.
考察了超声频率、超声声强、清洗时间和清洗温度对油砂分离的影响。
RESULTS & CONCLUSION: The extraction effects were different in using ultrasonic extractors with different power levels and ultrasonic frequency.
对同批样品进行反复测试结果与结论：不同功率、频率超声提取仪提取效果和对含量测定的结果不同。
A comparison study on two situations, with and without coal load on a steel plate, has been carried out by using audio and ultrasonic frequency.
应用声超声及超声穿透试验对钢板上有无煤负载两种情况进行了对比研究。
It has been researched systematically on abroad, and an analysis technology was put forward to predict all the velocity's dispersive of frequency from zero to ultrasonic frequency.
国外在这方面有较系统的研究，并提出了一种预测零频到超声波频率之间全部速度频散的分析技术。
This device can make the pressure inside the oil film changed at ultrasonic frequency, which enable the specimen surface to be damaged by cavitation erosion in a comparatively short time.
该装置能使油腊中的压力以超声频率变化，从而使试样表面在较短的时间内发生气蚀磨损。
The influences of ultrasonic frequency, ultrasonic time and solvent content on the extraction rate of fat oil in Elaeagnus angus-tifolia L. were studied. The optimum extraction condition was obtained.
用均匀设计法考察超声频率、超声时间和溶剂用量对沙枣油提取率的影响，得到提取沙枣油的优化超声工艺条件。
Torres-Sanchez, along with colleagues at Strathclyde University, is experimenting with low-frequency ultrasonic irradiation to ‘excite’ molten polymers as they begin to foam.
托雷斯 -桑切斯，与斯特拉斯克莱德大学的同事一起，正在试验当聚合物开始冒泡的时候，用低频率的超声波照射来“激发”熔融聚合物。
Frequency tracking is an important characteristic of ultrasonic power.
频率跟踪是超声波电源的一个重要特性。
High frequency ultrasonic power supply controlled by AT89C51, can adjust its power, frequency and phase in high performance.
以单片机at89c 51控制的高频超声电源，其功率、频率及相位可进行有效的调节。
The experiment of filter fabric ultrasonic cleaning is fulfilled by the ultrasonic cleaning device with frequency auto-tracking system.
采用具有频率自动跟踪系统的超声清洗设备对滤布进行强化清洗试验。
The very simple match circuits of the ultrasonic sensors were obtained by analyzing the frequency properties of the ultrasonic sensors.
通过对超声波传感器频率特性的分析而求得一个十分简单的超声波匹配电路。
Objectives To detect ultrasonic knife frequency and correct the result.
目的：实现对超声刀频率的检测，并对结果进行校正。
Methods High-frequency ultrasonic findings in 17 cases with PVNS were analyzed and a comparison between surgical and pathological results was made.
方法分析17例PVNS的高频超声表现，并与手术病理结果进行对照分析。
The paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy and the choose principle of ultrasonic sensor is presented.
文中以时差法为例，分析了超声波换能器中超声射线入射角及振荡频率对测量精度的影响，给出了换能器的选择原则。
This paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy. The option principle of ultrasonic sensor is presented.
以时差法为例，分析了超声波探头中超声射线入射角及振荡频率对测量精度的影响，给出了探头的选择原则。
The characteristic of linear and nonlinear responses between arc excited ultrasonic emission and excited frequency was realized by the received signal from the acoustic to the ultrasonic spectrum.
对受激电弧的声发射信号分析表明，从音频到超声频带，电弧声发射与激励频率之间存在着线性响应和非线性响应特征。
Moreover, the requirements of the ultrasonic vaporation of liquid to ultrasonic intensity and frequency were introduced.
本文进一步分析了液体超声蒸发对超声声强和频率的要求。
Ultrasonic technology is based on high-frequency sensors to measure the sound.
超声波技术是根据高频率的声音感应来测量的。
Conclusion This paper realizes the quantitative detection of ultrasonic knife frequency without related national standard and industrial standard.
结论：在目前国内无国家标准和行业标准对超声刀驱动频率检测前提下，实现了超声刀频率的定量检测。
Based on equivalent four-terminal networks of the longitudinal ultrasonic transformer, the resonant frequency equation and the amplitude magnification coefficient, with reactive load, are studied.
在负载为纯力抗的状况下，利用纵振型变幅杆等效四端网络，对频率方程和放大系数进行了研究。
A low frequency ultrasonic (Lamb like) wave method is used for characterizing the shear, longitudinal wave velocities, the thickness, and the density of ultra thin two layered bonding composite.
提出用低频超声类兰姆波定征方法来估计超薄双层胶结复合结构各层的纵波声速、横波声速、厚度和密度等参数。
This paper studies two factors affecting the demulsification and dehydration effect of ultrasonic wave: frequency and acoustic intensity.
研究了影响起声波破乳脱水效果的两个因素；频率与声强。
The paper puts forward a convenient and efficient method on the analysis of vibration natural frequency for ring ultrasonic wave motor stator.
本文提出了一种用于分析环形超声波电动机定子振动固有频率的简便、有效的方法。
The paper puts forward a convenient and efficient method on the analysis of vibration natural frequency for ring ultrasonic wave motor stator.
本文提出了一种用于分析环形超声波电动机定子振动固有频率的简便、有效的方法。
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