介绍一种时差法超声波流量检测系统。
Study of Vehicle Object Detection and Traffic Flow Measuring System;
介绍了一种确定网络图关键线路的新方法——结点时差法。
This paper introduces a new method of determining the critical path of the network chart-node slack method.
本文讨论了时差法成品油超声波流量计的基本原理、优缺点等。
In this paper, the principle of transit-time differential method of ultrasonic flow measurement is introduced along with the discussion of its advantages and disadvantages.
论文根据时差法超声波流量计的测量原理，设计了一款超声波流量计专用芯片。
In the thesis, an ASIC for ultrasonic flowmeter is designed based on the principle of time difference.
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。
By researching on plenty of data, we put forward a DSP-core ultrasonic flowmeter's measurement and control module with Time-difference method.
声学时差法流量计适用范围广，性能好，是一种可以推广的河流流量自动测量仪器。
Acoustic transit time flowmeter of wide application and high performance it is a kind of automatic river discharge measurement instrument that can be widely promoted.
本文阐述了超声波流量计常用的时差法、多普勒法的测流原理，以及超声波流量计的分类。
This paper explained the commonly used principle of ultrasonic flow meter: time-difference method and Doppler method and introduced the classification of the ultrasonic flow meter.
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。
Ultrasonic wind velocity measurement with time-difference method and wind velocity measurement system based on ARM micro-controller were introduced.
针对铷频标日频率漂移率的指标测试要求，文中采用时差法，设计了铷频标日频率漂移率测量装置。
For testing daily frequency drift of rubidium frequency standard, this paper used the method of time difference, designed daily frequency drift measuring equipment for rubidium frequency standard.
运用流体力学原理，分析了利用时差法进行超声波流量检测时误差产生的相关原因，并提出了修正方法。
The interrelated factors of the error caused by sonic flowmeter using the time difference by hydrodynamics were analyzed, and the correction method was introduced.
以时差法为例，分析了超声波探头中超声射线入射角及振荡频率对测量精度的影响，给出了探头的选择原则。
This paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy. The option principle of ultrasonic sensor is presented.
文中以时差法为例，分析了超声波换能器中超声射线入射角及振荡频率对测量精度的影响，给出了换能器的选择原则。
The paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy and the choose principle of ultrasonic sensor is presented.
本文用泥岩声波时差法和沉积速率法对关键井的地层剥蚀厚度进行了恢复，在此基础之上，用回剥法恢复了关键井的沉降史。
Backstripping technique is used in the recovery of subsidence history of Wells on the basis of erosion thickness that is calculated by the interval transit-time of mudstone and the sedimentation rate.
概述了超声波衍射时差法(TOFD)，对目前世界上主要的七个TOFD检测标准或规范进行了分析和比较，归纳了其中十二个方面的异同点。
Time of flight diffraction (TOFD) was summarized as a new nondestructive testing method. The present seven main TOFD standards in the world were evaluated and compared in twelve different portions.
文中利用泥岩声波时差和镜质体反射率法计算了三塘湖盆地下白垩统的剥蚀量，两种方法得出的结果吻合较好。
In this paper, the mudstone acoustic time difference method and the vitrinite reflectance method are used to calculate the Lower Cretaceous denuded thickness in the Santanghu basin.
本文系统论述了单孔法剪切波速测量信号处理中的一种到时差识别方法。
An S-wave arrival time detection method for wave velocity measurement in single-hole method is presented in this paper.
多次波的剩余时差分析法是在CMP道集动校正基础上进行的。
The method of residual normal moveout analysis for multiple is based no NMO correction of CMP gather.
本文提出了一种声波时差曲线环境效正的方法——漫反射声路法。
A novel method for applying environment correction to sonic skew log is presented-an acoustic path scattered reflection method.
超声衍射时差(tofd)法是焊缝超声检测和缺陷定量很有发展前景的新技术。
Ultrasonic time-of-flight diffraction (TOFD) technique is a new successful one for detecting and sizing the discontinuities in welded joints.
在实际工程中工序的资源量是受到严格限制的，传统的CPM法不能给出正确的工序总时差和关键路线。
In the practical engineering processes, the amount of resources is strictly limited, so in the actual engineering, the traditional CPM can not give the correct total float and critical path.
在实际工程中工序的资源量是受到严格限制的，传统的CPM法不能给出正确的工序总时差和关键路线。
In the practical engineering processes, the amount of resources is strictly limited, so in the actual engineering, the traditional CPM can not give the correct total float and critical path.
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