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Home > chinese-english > "测量频率" in English

English translation for "测量频率"

measuring frequency
survey frequency
Example Sentences:
1.The method of assess uncertainty in measurement frequency based on frequency compare method
基于频标比对法测量频率的不确定度评定方法
2.In the comparison of frequency standard , the ordinariest and the simplest method is phase comparison
测量频率标准指标的比对中,最常见且最简单的是采用比相测量的方法。
3.Comparing with the conventional methods using equipments , this approach is simple , efficient and precise and precise and can be realized easily
与传统的借助于硬件测量频率稳定度的方法相比,此方法灵活简单,可达到较高的测量准确度,容易实现。
4.Magnetic materials - part 6 : methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 hz to 200 khz by the use of ring specimens
磁性材料.第6部分:使用环形样品测量频率在20hz到200khz的磁性软金属和粉末材料磁性能的方法
5.2800 serial product is lcr automatic test serial instrument . the serial product is able to satisfy different users with different precision , measurement range and different frequency
2800系列产品为lcr自动测量仪系列产品。以其不同的测量精度、不同的测量范围、不同的测量频率满足不同用户的需要。
6.This algorithm successfully estimated sonobuoy position for simulated aircraft data . the effect of aircraft - to - sonobuoy range , the frequency of measurement , and changes in altitude are also analyzed
仿真表明,对于给定的飞行模式和飞机参数,该算法可以成功地估计浮标的位置,并且分析了飞机与浮标的距离、测量频率和飞行高度对定位的影响。
7.The improved method is used to predict the existence and the approximate location of the crack by using relative changes of frequencies and modal shapes of the damaged platform , in the absence of parameters of the intact structure
提出了利用2次测量频率变化量的频率检侧方法,在无未损伤模型参数的情况下也可以发现损伤的存在,并对损伤进行初步定位;同时提出利用不完全振型的相对变化,判断某些构件的断裂。
8.Measurement of quartz crystal unit parameters by zero phase technique in a - network ; part 3 : basic method for the measurement of two - terminal parameters of quartz crystal units up to 200 mhz by phase technique in a w - network with compensation of the parallel capacitance c
在型网络中用零相位技术测量石英晶体单元参数.第3部分:在具有并联电容c补偿的w型网络中用相位技术测量频率200mhz及以下石英晶体单元的二端参数的基本方法
9.Advanced fpga technology is introduced to improve the integration of digital circuits , and all digital circuits in the original module are integrated in the fpga chips , which could not only reduce the cost , but also improve the reliability and measurement precision of the circuits . high speed digital signal processor ( dsp ) is selected as the coprocessor instead of scm ; it can receive all kinds of commands sent from vxi , analyze and execute the commands , harmonize each section of the module and process the data . higher - conversion - speed comparator chip is adopted to convert the input signals being measured into square waveform signals which could be identified by fpga chip ; it can expand the measurement range of frequency dramatically
本文在原有vxi总线四通道计数器模块的设计基础上,通过对原模块缺陷的分析,采用一些新的技术和新的电子器件来重新设计该计数器模块:采用最新的fpga技术来提高数字电路的集成度,将原模块中的所有数字电路全部集成在fpga芯片中,这样不仅能节约成本,还能提高电路的可靠性和测量精度;采用高速的数字信号处理器( dsp )取代原有的单片机作为协处理器,来接收vxi发来的各种命令,分析命令、执行命令、协调模块各部分的工作以及对数据的处理;采用转换速率更高的比较器芯片将输入的被测信号转换为fpga芯片能够识别的方波信号,能极大提高测量频率的范围;采用d / a转换芯片和隔离运算放大器得到隔离通道所需的比较电平,该比较电平值能够根据实际需求进行设置,能增强模块的使用灵活性。
10.However , this module exposes some questions gradually along with the developed electronics and increasement of practical requirement . the main questions are that the measurement precision and measurement range of frequency could not meet higher and higher practical requirement , some electronic components adopted have stopped production or could not keep up with the era development , poor integration of digital circuits and the comparative level value could not be set with the actual requirement
但随着电子技术的发展和实际需求的提高,该模块也暴露出一些问题,主要是测量精度和测量频率的范围已不能满足日益提高的实际要求、所采用的一些电子器件已经停产或者跟不上时代发展的需要、数字电路集成度较差和隔离测试通道中的比较电平值不能随实际需求进行设置。
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