testing and sampling

[经] 检查与抽样

  • High-speed transient signal is tested with the testing methods of high-speed oscillograph and fast electronics pulse sampling .

    采用高速示波器法 电快脉冲 取样测试高速瞬态信号。

  • According to the requirement of air conditioner testing code on temperature and humidity sampling devices compares several structures of mixture receiving boxes in air enthalpy difference test system and proposes an optimal structure by CFD simulation .

    根据空调器 测试标准对温湿度 取样装置的要求,比较了空气焓差法测试系统中空气接收混合箱的几种结构,并通过CFD模拟进行了优化设计。

  • Dynamic time measuring using high current testing of constant current source and voltage sampling of break fracture is presented in this paper furthermore new type of testing apparatus is developed specifically for this kind of breaker .

    文中提出大电流恒流源 采样断口电压的动态电阻 测试方法,并研制出专门针对此类高压开关的新型测试仪器。

  • Development of Engine Emission Testing and Analyzing System Based on Dilution Constant Volume Sampling System

    基于 CVS 通用发动机排放 测量 分析系统开发

  • An embedded intelligent dynamic balance testing system for rigid rotator is developed based on the methods and theory of data sampling and processing .

    在此基础上 结合信号 采集与预处理处理方法研制出一套针对刚性转子的单片机动平衡 测试系统。

  • During the welding process photoelectric signal testing and analyzing system is applied for electric signal sampling such as welding current voltage waveform and so on .

    在双丝脉冲MIG焊过程中采用为本试验开发的光电信号 测试分析系统实现对焊接电流、电压波形等电信号的 采集

  • This paper introduces a testing and controlling system for hot - battery which realizes electronic control activation discharge sampling data processing etc automatically .

    本文介绍了能实现电控、激活、放电、 采样、处理、显示、存储自动化的热电池 参数 测控系统。

  • By testing and adjusting the system again and again we have the basic functions such as Adding Storage Transmission of the Data of Digital BOXCAR and the basic sampling signal testing .

    通过反复的 测试 调整,我们已经实现了数字 BOXCAR的基本叠加、存储和数据传送。

  • The way of receiving harmonic data from harmonic testing instrument is improved and this work greatly increases the sampling speed and the data handling efficiency .

    实践表明这大大提高了谐波 测试 样本 采集速度和谐波数据后续分析处理的效率。

  • Referring to some national code and trade code and combined with project commissioning and testing experience take a discussion about the confirming of the necessary amount of sampling spot and the necessary sampling times for per spot during the period of clean room testing and commissioning .

    本文根据有关国家标准和行业标准,结合工程 测试实践,对洁净室洁净度测定中必要测点数 每个测点的必要 采样次数等问题进行探讨。

  • Ultrasonic nondestructive testing of strength of the mortar between bricks is described . Comparison is carried out between the testing result and those of sampling and model test .

    介绍超声波砌缝砂浆强度无损检测方法,并将其 检测结果 取样 检测和模型试验结果进行了比较。

  • In the test 2 the effect of society on the changing of enrolled young peoples was further discussed . Testing result of 25 466 recruits from Sichuan province in 2008 and 2009 were used as cluster sampling group .

    在实验二中,进一步探讨社会因素对应征青年心理特征变化的影响,运用整群 抽样 方法,以四川省2008 2009两年全部应征青年心理 检测数据为研究对象,共计 25466人。

  • The paper describes about the sampling theorem in the procedure of transient signal testing and the basic problem in the sampling design .

    本文研究了瞬态信号 测试过程中采样原理 采样设计所面临的基本问题。

  • In this paper a high-precision testing and measuring system of gear transmission error is constructed by using NI virtual instrument theory the precision grating as sensors with time synchronous sampling mode and a zero incremental interpolation count method of sinusoidal pulse .

    本文采用NI的虚拟仪器理论,以高精度的光栅盘为传感器,采用同步定时 采样模式,设计正弦脉冲零值增量计数插值法,构建一套高精度的齿轮传动误差 测试系统。

  • A typical eddy current testing system is composed of the excitation signal source the magnetic field measure devices and the signal sampling and processing system .

    典型的涡流 检测系统由激励信号源、磁场测量装置 信号 采集处理系统三部分组成。

  • The testing results showed significant differences between the multiple-spot sampling group and the normal sampling group by t-test ( P < 0.01 ) and the effect of the form was better than that of the latter .

    多点布控组 常规 布控监测结果经t检验,有显著性差异(P<0.01)。多点布控采样效果优于常规布控组。

  • The functions of portable data recorder for adjusting test of safety valves are introduced the testing data are collected treated and typed in time and then the sampling differentiation conditions of safety valve set and reseat pressures are discussed the optimum programm is determined .

    介绍便携式安全阀调整试验用数据记录仪的功能,对 试验数据进行实时采集、处理 打印试验记录等,并对安全阀起跳压力和回座压力 采样的判别条件进行了讨论,确定了最佳方案。

  • PCR testing is simple celerity and delicate . Testing is not restricted with time and sampling parts . The result of the method is credible .

    用PCR技术进行品种鉴定,简便、快速、灵敏度高,需要的样品量少, 检测不受时间 取样部位限制,且结果可靠。

  • An integrated ultrasonic nondestructive testing and evaluation system based on MATLAB is established in the present paper . Having multi-functions of signal sampling analysis processing and evaluation and having a defect base the system is very convenient in ultrasonic nondestructive testing and evaluation works .

    本文建立了一个基于MATLAB的集成化的超声波无损 检测 无损评价系统,该系统集信号 采集、分析、处理、评价于一体,还有典型缺陷库,用于超声波无损检测和评价时十分方便。

  • We monitor and record the testing process of tractor analyze and control the testing process through sampling inspection by attributes and this can make the test process quality be in controlling .

    对拖拉机 试验过程进行监视记录,运用计数 抽样检验法则对试验过程进行分析 控制,从而达到试验过程质量可控。

  • The article presents issues on undefined criterion existing in technical testing requirements of LED display discusses the application of counting and adjusting method to sample to testing LED display and also introduces related sampling methods and acceptable criterion of technical tests .

    提出了LED显示屏技术要求检测中存在的合格判据不明确的问题,探讨了计数调整型抽样方法在LED显示屏 检测中的应用 介绍了相关技术条件检测的 抽样方法和合格判据。

  • At the sampling site testing Water temperature PH value and other physical and chemical indicators record the sampling table .

    在采样现场 检测水温、PH值 理化指标,记录 采样表。

  • The integrity of the foundation pile nondestructive testing method has a lot of kinds the common method has low strain gauge high strain gauge acoustic wave transmission method and drill sampling method .

    基桩的完整性无损 检测方法有很多种,常使用的方法有低应变法、高应变法、声波透射法 钻芯 取样法。

  • The paper is written when testing to signal in digital oscilloscope measurement and calibration and the actual application Choose the difference bandwidth 、 Sampling rate 、 Sampling mode 、 The interpolation mode and opening different number of channels To the calibrate and test the result effect .

    本文就在用数字示波器进行计量校准和实际应用中进行信号 测试时,选用不同的带宽、 采用率、采样方式、拟合方式及打开通道数目的不同,对校准和测试结果的影响。

  • Spherical near-field measurements have been one of the best ways in high-performance antenna testing . The measurement accuracy and efficiency are decided by near-field data sampling and mathematical transformation .

    球面近场测量技术是目前国内外测量天线最为理想的 测试手段之一,在测量中,数据的 采集和数学的变换决定了测量的有效性 精度的优劣性。