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current testing
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  电流测试
     A Discussion on Capacitive Current Testing for 10 kV Grounding System
     10kV接地系统电容电流测试方法的探讨
短句来源
     Fault diagnosis in analog circuits based on dynamic supply current testing
     基于动态电源电流测试的模拟电路故障诊断
短句来源
     Dynamic Current Testing on Power Supply Noise
     面向电源噪声的动态电流测试
短句来源
     A Fault Simulation Algorithm for Dynamic Current Testing
     一种用于动态电流测试的故障模拟算法
短句来源
     The Validation of a Dynamic Power Supply Current Testing Method by SPICE
     一种动态电流测试产生方法的SPICE模拟验证
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  电流检测
     Study on the current testing system in the constant control of spot welding
     点焊恒流控制中电流检测系统的研究
短句来源
     Solid electrolyte of Li_(1.3)Al_(0.3)Ti_(1.7)(PO_4)_3 thin films were prepared by sol-gel technique. The phase identification and surface morphology were investigated by X-ray diffraction and scanning electron microscopy. Electrochemical window and electronic insulating properties were examined by cyclic voltammetry and current testing instrument.
     采用溶液沉积法制备Li1.3Al0.3Ti1.7(PO4)3薄膜,用X射线衍射、扫描电子显微镜检测和分析薄膜的物相及表面形貌,采用循环伏安检测不同条件下制备的Li1.3Al0.3Ti1.7(PO4)3薄膜的电化学窗口,采用电流检测仪测定薄膜的电子绝缘性能.
短句来源
     Study on A New Method for AC Servo Current Testing
     一种新型交流伺服系统电流检测方法的研究
短句来源
     At last, the difficulties occurred in the system debugging and the simulation result of current testing channel are analysed.
     文章最后对系统调试过程中出现的问题及电流检测通道的模拟检测结果进行了分析。
短句来源
     A Novel Magnetic-Field Measurement Apparatus Design Applied in Ground Current Testing of the Steel Plate in Vessels
     适用于舰船钢板地电流检测的新型磁场测量仪器设计
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  电流试验
     This paper deals with the requirement for the testing system in the switchgear heavy current testing , Presents computer data acquisition , processing system and its main contents, and briefly analysizes practical hardware and software.
     本文在叙述开关电器强电流试验对测试系统要求的基础上对计算机数据采集和处理系统及其主要内容进行了介绍,并对实用的硬件和软件做了简要的分析和论述。
短句来源
     Using the energy transition between energy-storage components, a new high efficiency 10/350 μs impulse current circuit is put forward, and the circuit can be used as impulse current testing power supply for I(B) surge gap.
     利用回路中储能元件间能量转换提出的高效10/350μs冲击电流发生回路可用于I(B)级防雷间隙的冲击电流试验
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  “current testing”译为未确定词的双语例句
     A Description of Standard JB/T 4730—2005 Nondestructive Testing of Pressure Equipments:Eddy Current Testing (Ⅰ)
     JB/T 4730—2005《承压设备无损检测》答疑——涡流检测部分(Ⅰ)
短句来源
     A Description of Standard JB/T 4730—2005 Nondestructive Testing of Pressure Equipments:Eddy Current Testing(Ⅱ)
     JB/T 4730—2005《承压设备无损检测》答疑——涡流检测部分(Ⅱ)
短句来源
     Study on Eddy Current Testing Virtual Instrument System under LabWindows/CVI
     基于LabWindows/CVI的涡流检测虚拟仪器系统的研究
短句来源
     Compilation instruction for testing method GB/T17990-1999 of point eddy current testing used in the testing of round steel rods
     GB/T17990-1999圆钢点式(线圈)涡流探伤检验方法编制说明
短句来源
     The Design of Eddy Current Testing System Based on AC1856
     基于AC1856的电涡流微机检测系统的设计
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  current testing
In this study we used an auto-scanning eddy current testing method to detect oxide films entrapped in Al alloy castings.
      
Eddy-current testing of mechanical characteristics of pressure vessel metals at high frequencies
      
Eddy current testing, X-ray diffraction, remanent magnetization measurement and magnetic etching techniques have been used to corroborate the AE results.
      
IDDQ or steady state current testing has been extensively used in the industry as a mainstream defect detection and reliability screen.
      
We present industrial results of a quiescent current testing technique suitable for RF testing.
      
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The distribution coefficients of Am(Ⅲ) and Eu(Ⅲ) by di-(2-ethylhe-xyl)phosphoric acid(HDEHP) from nitric acid solution were measured as a function of the diluent, concentration of extractant, acid in aqueous phase and aluminium nitrate or sodium nitrate. The distribution coefficients of Sr (Ⅱ) were also measured-for the same system as a function of nitric acid concentration and extractant concentration. For practical purpose, the extraction properties of purified HDEHP have been compared with those of the commercial...

The distribution coefficients of Am(Ⅲ) and Eu(Ⅲ) by di-(2-ethylhe-xyl)phosphoric acid(HDEHP) from nitric acid solution were measured as a function of the diluent, concentration of extractant, acid in aqueous phase and aluminium nitrate or sodium nitrate. The distribution coefficients of Sr (Ⅱ) were also measured-for the same system as a function of nitric acid concentration and extractant concentration. For practical purpose, the extraction properties of purified HDEHP have been compared with those of the commercial reagent. Finally, several conditions were suggested for multistage counter current test.

本文测定了用二-(2-乙基已基)磷酸(HDEHP)从硝酸溶液中萃取Am(Ⅲ)和Eu(Ⅲ)分配系数与稀释剂、萃取剂浓度、水相酸度和硝酸铝、硝酸钠浓度的关系。并以Sr(Ⅱ)为裂片元素代表,测定了萃取剂浓度和酸度与分配系数的关系。考虑到实际应用,比较了经纯化和未经纯化的HDEHP对萃取、分离的影响。最后提出了几种可能采用的串级实验条件。

This paper describes an eddy current test method for determining the depth of crack and slits on metal surface. Its measuring principle may be explained as follows: the frequency variation of the detecting oscillator takes place due to coil inductance variation, the magnitude of which depends on the crack depth, when there is a crack within such a surface part, the eddy current line is forced to bypass the crack on a longer way. In this case, due to skin effect, the coil inductance variation takes...

This paper describes an eddy current test method for determining the depth of crack and slits on metal surface. Its measuring principle may be explained as follows: the frequency variation of the detecting oscillator takes place due to coil inductance variation, the magnitude of which depends on the crack depth, when there is a crack within such a surface part, the eddy current line is forced to bypass the crack on a longer way. In this case, due to skin effect, the coil inductance variation takes place and causes a small frequency variation, which will be detected, thus the depth of crack may be measured through the signal transform in terms of the amount of voltage which increases with the depth of crack. This test method can be used to detect the micro-crack on the surface of ferrous and non-ferrous metals, such as austenite stainless steel and compound metal, iron and cast iron, steel and cast steel, copper and aluminum, etc. The measurement accuracy of this instrument is ±10μm for quenching crack of 50-1, 000μm in depth.

本文叙述了采用涡流变频法原理的测量方法来确定金属表面裂纹深度。本测量原理是基于涡流线沿着裂纹深度旁路通过的,随着检测振荡器的线圈阻抗对应于不同裂纹深度而变,致使频率发生变化,经过适当的信号处理即可测出相应的裂纹深度。 本仪器专门用于检测金属表面微细的浅裂纹,特别适用于各类不同材质的金属如奥氏体和粗晶粒的金属。铸铁、铸钢及其合金,以及有色金属铜、铝等。本仪器的测量精度在裂纹深度为50~1000μm时,精度为士10μm。

It is reported in this paper that the structure and the characteristics of a new eddy-current testing system used for the dynamic detection of contact fatigue cracks, which has not been reported at home and abroad. The relation curves of magnetic intensity and phase angle with the eddy-current permeation depth were first quantitatively determined. The relations of various parameters with the major frequency of flaw signal and the major frequency of interference signal were also determined. The laws...

It is reported in this paper that the structure and the characteristics of a new eddy-current testing system used for the dynamic detection of contact fatigue cracks, which has not been reported at home and abroad. The relation curves of magnetic intensity and phase angle with the eddy-current permeation depth were first quantitatively determined. The relations of various parameters with the major frequency of flaw signal and the major frequency of interference signal were also determined. The laws were summarized, and the machanism was studied, which furnished a example of the application of eddy-current testing in the new area.

本文报道了国内外尚很少系统开展研究的接触疲劳裂纹涡流法动态检测系统的组成及特点,首次在涡流渗透深度方面定量测定了磁场强度和相位的变化.定量测定了各种参数与伤信号主频率f_s和干扰信号主频率f_g间的关系,总结了规律、研究了机理,为涡流探伤在新领域的应用提供了一个实例.

 
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