The virtual signal generator has 12-channels outputs for linear scanning frequency signal or fixed frequency sine wave excitation signal.
该发生器可以输出相位差可调的12通道线性扫频正弦激励信号或者输出12通道定频正弦激励信号。
The EB scanning track, scanning frequency and energy density distribution at heating zone could be programmed off-line and adjusted on-line.
利用该系统可对电子束扫描轨迹、扫描频率以及加热区域电子束能量密度的分配进行离线编辑和在线调节。
A method of frequency spectrum analysis is introduced, which be realized by collect the virtual value of appoint frequency vibration through scanning frequency.
介绍了一种用频率扫描抽取指定频率振动分量有效值的方法实现硬件频谱分析的工作原理。
This paper presents formula to calculate the scanning frequency, scanning Angle, scanning width and excessive focal length of the wide-band laser scanning device.
介绍了激光宽带扫描装置，提出了多棱镜宽带扫描的扫描频率、扫描角度、扫描宽度、过剩聚焦长度的解析式。
The 72 sampling points on the circumference of a spare part was set by the automatic detecting system of coaxial degree according to the scanning frequency of the laser sensor.
同轴度自动检测系统根据激光位移传感器扫描频率，在圆周面上选择72个采样点。
Therefore, the scanning period is shortened, the scanning frequency and system accuracy are enhanced and the data acquisition reliability is enhanced compared with the prior art.
从而缩短扫描周期，加快扫描频率并提高系统精确度，相对于现有技术使数据采集的可靠性提高。
By counting the number of such X-rays while scanning the frequency of the laser pulse, the team could make a very precise measurement of the photon energy required to drive the 2s-2p transition.
通过统计所发出X光的数量，然后对照激光脉冲的频率，测量小组能得出一个非常精确的测量值，从2s能级到2p能级跃迁所需的量子能量。
Objective: to study the effects of respiratory movement frequency and scanning time on the image results in the treatment of lung cancer by stereotactic radiotherapy.
目的：研究立体定向放射治疗肺癌中呼吸运动频率与图像扫描时间对靶体积定位成像结果的影响。
The white noise scanning test was conducted before the shaking table test and repeated at every interval of each test to obtain the law of the basic frequency vary with the time.
在模拟地震试验前和各阶段模拟地震试验后均对模型进行了白噪声扫描试验，考察了模型的频率变化规律。
Computer memory play, and set various broadcast modes such as time play, double frequency scanning, low speed, stop motion, paragraphs repeat, etc.
电脑记忆播放，设置时间播放，倍速扫描、慢速、逐格、段落重复等多种播放方式。
The zigzag waveform movement curve is often used in the scanning mirror of thermal imager, so its performance and frequency are limited by the delay time of returning movement.
热像仪扫描摆镜通常采用锯齿波形运动曲线，扫描频率和效率取决于回扫间隔时间。
Q scan, a qualitative analysis method, is analogous to velocity scanning or frequency scanning.
前者类似于速度扫描或频率扫描，属于一种定性分析方法；
The physical meaning of instantaneous frequency is analyzed. Its application in the evaluation of the bandwidth of IR scanning systems is discussed.
分析了瞬时频率的物理概念，指出在红外扫描系统中，用瞬时频率来计算系统带宽是值得讨论的。
It is a property for practical application as a frequency scanning antenna since it ensures a stable radiation pattern with little distortions while beam is being scanned.
对频率扫描天线能保证当波束扫描时，可以保持一个相对稳定不畸变的辐射方向图。
Embodiments of the invention are concerned with improvements to Doppler radar systems, and are suitable for use with frequency scanning radar systems.
本发明的实施例涉及多普勒雷达系统的改进，且适合与频率扫描雷达系统一起使用。
Methods Liver scanning was performed with a high frequency transducer to measure the velocity acceleration time and resistant index of portal vein and hepatic artery after finishing the anastomosis.
方法选用高频手术专用探头，于手术中门静脉、肝动脉吻合完成后立即测量肝动脉及门静脉血流速度，并计算快速充盈时间及阻力指数。
The method USES FFT instead of the cyclic frequency scanning.
该方法利用FFT运算代替循环频率遍历搜索。
This instrument can clue on baseline shift to decide the frequency of background scanning, which can deduce NIR analysis error and improve NIR veracity.
该仪器具有基线漂移提示功能，从而确定仪器背景采集的频率，可以降低分析误差，提高检测结果的准确度。
After thoroughly studying the MEM process, the frequency range of inertia force, which is caused by the scanning movement of extrusion head, has been found.
本文在深入分析MEM工艺过程之后，找出喷头扫描运动产生的惯性力的频率范围。
The result showed that the analyzer has wide input frequency range, narrow RBW (Resolution Bandwidth) and high scanning accuracy, and it reaches the international advanced level.
测试结果表明所设计的分析仪输入频带宽、频率分辨力和扫频准确度高，达到国际同类产品先进水平。
Furtheremore, the analysis indicates that the Doppler frequency shift cannot be Used to explain the wavelength self-scanning initially towards the longer wavelength.
进一步的分析显示，多普勒频移不能解释朝长波方向扫描的波长自扫描现象。
Based on the analytic method of cyclic spectrum density, the paper pointed out that the impact frequency could be extracted effectively with the help of scanning cyclic frequency domain.
通过对循环谱密度分析方法的特性分析，指出应用循环谱密度分析方法可以在循环频率域有效提取出滚动轴承的冲击故障频率。
In coordination with the application of post-set arc suppression coil, a frequency scanning based modified method for detecting system capacitance to earth is proposed.
为配合随调式消弧线圈的使用，提出了一种扫频检测系统对地电容的改进型方法。
The deformation and fracture of mild steel under high frequency bending fatigue has been studied by optical microscope, scanning electron microscope and microhardness determination.
用光学、扫描电子显微镜及显微硬度计，研究了低碳钢在高频弯曲疲劳过程中的形变及断裂。
While the alterable frequency and scope sawtooth sweep signal for TFFP can neatly change the scanning range of the system, which is more improved the demodulation speed.
同时变频变幅的TFFP锯齿波扫描信号可以灵活地改变系统的扫描范围，进一步提高了系统的解调速度。
This paper describes a new mono-frequency laser interferometer using a self-scanning photoelectric diode array (SSPDA) as the receiving device of laser interference fringes.
本文介绍一种采用自扫描光电二极管列阵(SSPDA)作为激光干涉条纹接收器的新型单频激光干涉仪。
Employing the interlaced scanning, current TV system can compress the frequency band of TV signal effectively and facilitate transmission.
现行的广播电视系统由于采用隔行扫描方式，从而有效地压缩了电视信号的频带，有利于传输；
The clock transition frequency and linewidth of the clock transition line were obtained by scanning the microwave frequency in a narrow region.
通过减小微波扫描的频率范围，得到钟跃迁频率和谱线线宽。
The highest speed of the irradiation bed can be determined by the frequency of modulator, scanning width, and the size of electron beam spot...
根据速调管调制器主振脉冲频率、扫描宽度和电子束的束斑大小可以定出辐照床的最高运动速度以实现高效率的辐照。
The highest speed of the irradiation bed can be determined by the frequency of modulator, scanning width, and the size of electron beam spot...
根据速调管调制器主振脉冲频率、扫描宽度和电子束的束斑大小可以定出辐照床的最高运动速度以实现高效率的辐照。
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