This method was changed from measuring the dimension difference to the time difference measurement by using an optical system and circuitry.
这种方法利用一光学系统和电路，把线值差转换为时间差来测量。
This method is based on the measurement of the rate of air flow through a given area of fabric by a given pressure difference across the fabric.
这个方法是基于对空气流速的测量：在一块既定面积的面料上，通过面料两边不同的压差来获得。
On the basis of the relevant theory of colorimetry, a test system is designed for object color appearance measurement and its color-difference evaluation using photoelectric integrating method.
本课题在相关色度学理论的基础上，设计了一种采用光电积分型测量方法对物体表面颜色外貌进行测量并对其予以色差评价的检测系统。
Applied method and measurement accuracy of difference GPS technology on missile fire control system and its development prospect are introduced based on applied practice.
结合应用实践，论述了差分gps在导弹火控系统精度试验中的应用方法、测量精度及其发展前景。
This paper presents the problems which must be paid attention to on using the difference method in gyro measurement data processing.
本文介绍在陀螺测试的数据处理中应用差分法时应注意的一些问题。
A reference method for momentum measurement based on the TOF difference of proton and electron is introduced.
介绍了一种测量电子与质子飞行时间差的动量测量方法。
The emphasis of the research of the method of time difference measurement is how to suppress noise and interference effectively.
有效地抑制噪声和干扰是研究各种时差测量方法的重点。
In different measurement systems, the error correction effect is also different for the difference method and the ratio method.
差值法与比值法对不同测量系统的误差修正效果不一样。
In the case of large density difference, there is a velocity separation between different media, making the measurement more difficult, cross-correlation method is still usable.
在密度差别较大时，存在着不同介质间的速度分离，给相关法测量带来困难。
We have made a novel instrument for the measurement of work function using contact potential difference method.
利用接触势差法自行设计开发了一种新型的表面功函数测试装置。
A measurement system for sine signal phase difference is designed by using DSP and digital correlation method.
设计一个采用DSP技术和数字相关法测量两路正弦信号相位差的检测系统。
It provides a new method to estimate phase difference for test of characteristic parameters of fluid and measurement of a ship heave in deep-sea mining.
本文为实时估计两列波相位差提供了新方法，在流体物理检测、深海采矿船升沉运动位移等的检测中具有良好的作用。
But traditional method doesn't consider such factor, in result, outcome from calculation has a lot difference than that from measurement in tests.
而目前的一些计算方法均未考虑此因素的影响，以致计算结果均与实测结果有较大的差距。
It introduces briefly the method of the general gas flow measurement with the temperature and pressure compensation by the flow meter of pressure difference.
简要介绍使用差压式流量传感器进行一般气体流量测量时的温压补偿方法；
Ultrasonic wind velocity measurement with time-difference method and wind velocity measurement system based on ARM micro-controller were introduced.
介绍了超声波时差法风速测量的基本原理，以及基于ARM微控制器的风速测量系统的实现方法。
Accuracy of the CT method was calculated as the average difference between methods. Precision was measured as the standard deviation of the CT measurement.
以这两种方法间的平均差异来计算ct的准确性，以CT测量结果的标准差评估精确度。
Before the design of digital circuit, measurement method of phase difference is discussed. Two-way zero passage phase detector is chosen as solution finally.
在正式进入数字电路设计之前，先讨论了相位差测量方法，并选定双向过零鉴相作为实现方案。
After studying on the measurement principle of power system harmonic based on FFT theory, this paper presents a high-accuracy method based on phase difference correcting to measure the harmonic.
研究了基于FFT理论的电力谐波检测原理，提出一种基于相位差校正法的高精度电力谐波检测方法。
By researching on plenty of data, we put forward a DSP-core ultrasonic flowmeter's measurement and control module with Time-difference method.
通过研究大量的资料，提出了以DSP为核心的时差法超声波流量计测控模块。
This paper firstly introduces some measurement methods and then points out their deficiencies. At last, a new method is proposed, which uses aptotic phase shifting method to measure phase difference.
介绍了了几种测量相位差的方法，分析了各自的不足，最后提出了一种新型的利用固定相移测量同频正弦信号相位差的方法。
In a 2-d structure, the calculation results of a hybrid method, which is based on combing ray tracing and finite-difference time-domain (FDTD) method, agree well with the measurement.
在二维情形中，基于结合射线跟踪法和时域有限差分法(FDTD)的室内无线传播混合建模方法对于室内无线传播的预测结果与测量结果吻合较好。
This paper introduced the flow measuring principle of time-difference method of ultrasonic flow meter and the flow calculating method in flow measurement with velocity instrument.
论述了流速仪法测流及水轮发电机组现场效率试验的原理和计算方法。
This paper introduced the flow measuring principle of time-difference method of ultrasonic flow meter and the flow calculating method in flow measurement with velocity instrument.
论述了流速仪法测流及水轮发电机组现场效率试验的原理和计算方法。
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