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    Combined with the Interpolation method, the range of measurement is expanded to 200ns ~43s.
    通过与数字插入法相结合,使系统的测量范围达到了200ns~ 43s。
    some verification experiments have been performed using the whole temperature control system. The results of experiment mdicate that within the temperature range of 10 ℃~40℃, the resolution of the temperature measurement is 0.01℃, and the accuracy of temperature control is 0.2 ℃ (or even 0.1 ℃ at the room temperature,) and the establishing time is about 180 seconds.
    对整个温控系统进行了实验研究,结果表明:该系统在10℃一40℃温度范围内,测量分辨率为0.01℃,控温精度为0.2℃(室温附近可达0.1℃),系统建立时间为180秒左右。
    Actually, measure environment or setting is instable,thus dynamic measurement is of high value.
    实际测量环境大多不稳定或测量过程需动态进行,因此位移场的动态测量更具有实用价值。
    According to the simulation result with computer—aided design software, the integrated circuit is fabricated using Duriod5880 with 0.254mm thick and dielectric constant ε_r of 2.22 .The result in measurement is that the range of the conversion loss is from 12.5dB to 16.2dB when the IF changes from 100MHz to 1000MHz, and the mixer can meet the requirement of the system in application.
    根据软件的仿真结果,利用介电常数ε_r为2.22,厚度H为0.254mm的Duriod5880介质基片制作了混频电路,并对其进行了组装、测试。 测试结果表明:当混频器的中频输出范围为100MHz~1000MHz时,变频损耗值在12.5dB~16.2dB之间变化,达到预期的设计指标。
    The precise measurement is required for the large system with complicated influence factors, so the beam quality characterization must be researched specially and the measurement must find some non-related methods to verify the accuracy at the same time.
    系统庞大影响因素复杂,对测量精度要求却很高,加之对光束近远场强度分布要求特殊,因此对描述光束质量的评价参数必须进行有针对性的研究,光束质量测量也必须寻找各种非相关的手段以验证测量结果的可靠性和准确性。
    The measurement is made on X-band TE011 mode cavity.
    测量是在X波段TE_011模式腔上进行的。
    The precision of the measurement is less than 3nm,the appropriate length of fiber sample is about 0.3m~10m.
    该方法精度不劣于3nm,所用光纤样品长度 L 为0.3~10m。
    A digital IETS measuring system with a raicrocomputer is built. By means of a 12 digits D/A, A/D converter, an adapting DC amplifier and a buffer, the resolution of the IETS measurements is better than 2mv.
    本文描述了一个使用微型计算机的数字化IETS测量系统,12位D/A和A/D转换器以及适当的直流放大器、缓冲器的应用,使IETS测量的分辨率优于2mV。
    The precision of the measurement is less than 3nm, the appropriate length of fiber sample is about 0.3m-10m.
    该方法精度不劣于3nm,所用光纤样品长度L为0.3~10m。
    The repeat accuracy of laser wavelength measurement is 5×10~(-7).
    其重复精度为5×10~(-7)。
    Good agreement between the numerical results of theoretical calculation and experimental measurements is obtained in frequency ranges of 92.6-96.5 GHz (i. e. 3 mm band).
    3毫米频段上92.6—96.5GHz的实验结果,与理论分析数值计算值吻合良好。
 

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