同时提出在检测频率后,进一步检测谐波幅值的可能性。
At the same time, the paper brings forward the possibility to further detecting harmonic amplitude after detecting frequency.
推导了放置式探头线圈的特征频率,为检测频率的选择提供了参考。
Then, characteristic frequency of laid test coil is calculated, it is important to select the test frequency.
得出了在被检测结构一定的条件下,大的回波能量透射系数对应有一最佳检测频率。
In a certain medium structure, the echo energy transmission coefficient changing with the ultrasonic testing frequency is studied and the maximum magnitude is obtained.
地基检测器曾尝试在地球上探测引力波,但至今尚未成功,而且其只能检测频率相当高的引力波。
Ground based attempts to detect gravitational waves on Earth have so far been unsuccessful and can only look for gravitational waves with relatively high frequencies.
切合实际器件特性可以分析根据实际营运情况,由不同检测频率,测试信号水平和直流偏置。
Realistic device characteristics can be analyzed under actual operating conditions by varying the test frequency, test signal level, and dc bias.
因为大多数模式分类算法与信号的形状密切相关,而信号的形状很大程度上随检测频率的变化而变化。
Most pattern classification algorithms rely heavily on the shape of the signal, which can vary considerably with frequency.
在工业现场由于条件的限制,很多过程变量需要的检测频率并不一样,从而带来了多频多变量的控制问题。
Because of the limit in modern industry sites, the frequency of the process variables detect is different. We can resolve the problem by multi frequency and multi variable control.
轨道梁检测要求检测频率达到200~1000HZ,同时要求所有32路通道同步采集数据,并且要达到16位的A/D转换精度。
Special requirement in high speed guide way inspection including inspection frequency up to 200~1000HZ, synchronization in 32 channels and 16 bits A/D conversion are considered in this paper.
本文在实验室中建立了局部放电特高频检测系统和变压器典型局放模拟系统,对特高频检测中检测频率和带宽的选取原则进行了实验研究。
In this paper, an UHF PD detection system and a typical PD models simulated system are developed to study the influences of center frequency and bandwidth on UHF PD detection for transformers.
他表示,检测不同种的蚊子是有可能的,因为它们翅膀扇动的频率有着明显区别。
He says it is possible to detect different species of mosquito because their wings beat with a distinctive frequency.
这种变量的值可以在操作系统检测到更新频率发生变化或操作系统进行频率更改时进行改变。
The values for such variables can change when the operating system detects that the update frequency has changed, or if the operating system initiated the frequency change.
把小型压电声传感器安装到这种构造部位上,检测由航空级铝材裂纹所致的特定频率的噪音,靠这样就能监测飞机裂纹。
It does this by fitting small piezoelectric acoustic sensors to parts of the structure to detect the particular frequency of noise caused by a crack in aircraft-grade aluminium.
相位频率检测器用温度感测电路调整一个或更多个输出信号的最小脉冲宽度从而补偿温度变化。
The phase frequency detector adjusts the minimum pulse width of the one or more output signals using the temperature sensing circuit to compensate for temperature variations.
利用无线电频率或微波技术进行乳腺癌检测已经被美国、加拿大和英国的研究人员们所证实。
Using radio frequency or microwave technology for breast cancer detection has been proven by researchers in the US, Canada and UK.
结果表明:不检测转子磁链的滑差频率矢量控制系统具有结构简单、控制性能优良等特点。
The result show that the system possesses the features of simple structure and excellent control characteristics etc without detecting the slip frequency of the rotor's magnetic field.
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.
在电子技术领域内,频率是一个最基本的参数,频率的检测与许多电气参数的测量都有着十分密切的关系。
In the field of electronic technology, the frequency is basic parameter, frequency of Detection and many of the measurement of electrical parameters have a very close relationship.
分析了复合材料微波检测中电磁参量、电磁波频率和介质薄片厚度的计算方法。
The computation methods of electromagnetism parameters, electromagnetic wave frequency and medium slice thickness in microwave measuring for composite material were analyzed.
在大功率晶体管逆变器——电动机驱动系统中,它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制,而且能快速地检测出故障电流。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
每个检测项目的检测种类、频率、记录方式、测量设备都必须明确规定。
The type of inspection, frequency, type of documentation and measuring equipment must be defined for each inspection characteristic.
重点介绍激振力和激振频率的检测和处理技术。
Finally presents the detecting and processing technique of exciting power and frequence.
结果表明,低通滤波器的截止频率、阶数和类型对检测电路的动态响应过程、检测精度都有很大影响。
The simulation result shows that the dynamic response and the detection precision in detection circuit can be greatly influenced by the cut-off frequency, order and type of low pass filter.
智能手机频率检测器和联系式商品展示可以识别店中某个地点是人流驻足的“热点”。
Smartphone frequency detectors and connected displays could identify that one point in the store is a "hotspot" where traffic tends to halt.
文中分析了检测电路的频率特性,且理论上证明了系统的稳定性。
The authors analyze the frequency characteristic of detecting circuit and prove the stability of the proposed detecting system theoretically.
同时利用霍尔传感器将电机速度转换成脉冲频率反馈到单片机中,实现转速闭环控制,达到转速检测目的。
At the same time using Holzer sensors will be converted into pulse frequency motor speed feedback to the MCU, realize the speed closed-loop control, to achieve speed detection.
依照本发明的某些实施例,相位频率检测器包括温度感测电路。
According to some embodiments of the present invention, a phase frequency detector includes a temperature sensing circuit.
作为另一个示例,选择信号的逻辑状态可响应于提供给脉冲频率检测器的电源电压的变化而改变。
As another example, the logic state of the select signal can be changed in response to a change in the power supply voltage provided to the phase frequency detector.
只要输入信号落在检测器的频率范围内,则功率计就能给出准确的的功率。
If the input signal is anywhere in the frequency range of the detector, the meter will make a valid power measurement.
最后介绍了分选预处理器在电子战中的三种应用:威胁信号检测、无用信号滤波和脉冲重复频率选择滤波。
At last, the paper also presents three different applications of the sorting processor to electronic warfare: detection of threating signal, filtering of useless signal and PRF selection filtering.
因此,需要提供具有可控制最小脉冲宽度的相位频率检测器。
Therefore, it would be desirable to provide a phase frequency detector that has a controllable minimum pulse width.
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