A55 电磁计量 标准查询与下载

GB/T 40661-2021 工频磁场测量仪校准规范

本文件规定了工频磁场测量仪的一般要求、校准参数要求、校准条件、校准项目和校准方法.校准结果、校准间隔等要求。 本文件适用于新制造,使用中和修理后的测量额定频率为50 Hz 的工频磁感应强度的磺场测量仪的校准。 注:测量工频电场强度的工频电场测量仪的校准方法见附录A。

Calibration specification of measurement instrument for power frequency magnetic field

GB/T 30109-2013 交流损耗测量 液氦温度下横向交变磁场中圆形截面超导线总交流损耗的探测线圈测量法

本标准规定了利用探测线圈法测量横向交变磁场中复合超导线总交流损耗的方法。损耗可能包括磁滞损耗、耦合损耗和涡流损耗。IEC 61788-13已描述了只测量直流磁场或者低扫速率磁场中磁滞损耗的标准方法[2]。本标准适用于脉冲线圈和交流线圈中的金属和氧化物圆形截面超导线,在随时间变化(时变)的磁场和/或电流的应用中会产生交流损耗。在常规线圈应用的电磁位形中,交流损耗主要来自(时变)磁场。对于处于横向交变磁场中的超导线,本方法通常用在液氦温度、频率范围上限可达工频50/60 Hz的总交流损耗测量。采纳本方法测量的总交流损耗分为超导单丝中的磁滞损耗、丝间的耦合损耗和常导部分的涡流损耗。在超导线外没有厚度较大的正常导体包套的情况下,交流损耗主要是磁滞损耗和耦合损耗;由于每周耦合损耗与频率成正比,磁滞损耗部分可以通过在较低频率范围内所测得的交流损耗外推至频率为零时的损耗估算得到。

AC loss measurements.Total AC loss measurement of round superconducting wires exposed to a transverse alternating magnetic field at liquid helium temperature by a pickup coil method

YD/T 4183-2023 射频电磁场暴露数据采集方法和地图绘制要求

本文件给出了一种用于生成射频电磁场（RF-EMF）辐射地图的方法，包括辐射数据采集系统和地图绘制的技术要求，用以评估某些区域或向人们形象展示该区域射频电磁场的辐射暴露水平。 本文件适用于移动通信基站、广播电视发射台等无线电发射设备/设施所产生的射频电磁场（30MHz-300GHz）暴露数据的采集和辐射地图的绘制。

Data Collection Methods and Mapping Requirements for Exposure to Radio Frequency Electromagnetic Fields

DB43/T 2431-2022 离心机电磁兼容试验方法

Electromagnetic Compatibility Test Method for Centrifuge

DB43/T 2151-2021 等值反磁通瞬变电磁法探测系统通用技术条件

General technical requirements for equivalent anti-flux transient electromagnetic detection system

BS EN IEC 61788-17:2021 超导 电子特性测量 大面积超导薄膜局部临界电流密度及其分布

Superconductivity. Electronic characteristic measurements. Local critical current density and its distribution in large-area superconducting films

ASTM A927/A927M-18 用伏特计-安培计-瓦特计法测量环形磁芯试样的交流磁性能的标准试验方法

3.1 This test method is a derivative of Test Method A697/A697M specifically designed for testing of toroidal cores which are not covered in Test Method A697/A697M and for testing at magnetic flux densities above the knee of the magnetization curve. 3.2 Specimen size typically ranges from 1 to 1.25 in. [25.4 to 31.8 mm] in inside diameter to 1.5 in. [38.1 mm] in outside diameter with weights ranging from 30 to 60 g. Provided the test equipment is suitably chosen, there is no obvious limit to the overall size of core that can be tested. If basic material properties are desired, then the requirements of 5.1 must be observed. 3.3 The reproducibility and repeatability of this test method are such that this test method is suitable for design, specification acceptance, service evaluation, and research and development. 3.4 When testing under sinusoidal flux conditions at magnetic flux densities approaching saturation, highly peaked magnetizing waveforms will be present, and the test instruments used must have crest factor capabilities of at least 3; otherwise erroneous results will be obtained. 1.1 This test method covers the determination of several ac magnetic properties of either laminated ring or toroidal tape wound cores made from flat rolled product. 1.2 This test method covers test equipment and procedures for determination of specific core loss, specific exciting power, and peak permeability for power and audio frequencies (50 to 208201;000 Hz) under sinusoidal flux conditions. 1.3 This test method, because of the use of a feedback-controlled power amplifier, is well suited for determination of ac magnetic properties at magnetic flux densities above the knee of the magnetization curve and is particularly useful for testing of high-saturation iron-cobalt alloys (for example, alloys listed in Specification A801), although use of this test method is not restricted to a particular type of material. 1.4 This test method shall be used in conjunction with Practice A34/A34M and Terminology A340. 1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7

Standard Test Method for Alternating-Current Magnetic Properties of Toroidal Core Specimens Using the Voltmeter-Ammeter-Wattmeter Method

BS 7856:2017 英国使用的有功电能交流电度表的特殊设计和其他功能规范（精度等级 A 和 B）

Specification for special design and other features of alternating current watthour meters for active energy for use in the UK (Accuracy Classes A and B)

DIN IEC/TR 60865-2:2017 短路电流.效应计算.第2部分:计算举例(IEC/TR 60865-2-2015)

Short-circuit currents - Calculation of effects - Part 2: Examples of calculation (IEC/TR 60865-2:2015)

ITU-T K.87-2016 电磁安全要求应用的指南. 综述

Guide for the application of electromagnetic security requirements �C Overview (Study Group 5)

JJG 1122-2015 机动车地感线圈测速系统

本规程适用于固定安装在道路上，通过一组地感线圈对机动车行驶速度进行测量的机动车地感线圈测速系统（以下简称地感线圈测速系统）测速计量性能的首次检定、后续检定和使用中检查。

Traffic Loop-based Speed Meters

EN 10330:2015 磁性材料.开放式磁路中磁性材料矫顽力的测量方法

This European Standard specifies the method of measurement of the coercivity of magnetic materials in an open magnetic circuit. It applies to magnetic materials having a coercivity up to 500 kA/m. Special precautions to take in measuring coercivities below 40 A/m and above 160 kA/m are given in Annex A.

Magnetic materials - Method of measurement of the coercivity of magnetic materials in an open magnetic circuit

EN 10251:2015 磁性材料.电工钢板和钢带的几何特性的测定方法

This European Standard is intended to define the test methods used for the determination of the following geometrical characteristics of electrical steel sheet and strip: - flatness; - residual curvature; - edge camber; - deviation from the shearing line due to internal stresses; - burr height of cut edges. This European Standard applies to electrical steel sheet and strip intended for the construction of magnetic circuits and corresponding to Clauses B2, C21 and C22 of IEC 60404-1:2000.

Magnetic materials - Methods of determination of the geometrical characteristics of electrical steel sheet and strip

KS A 0085-2015 同色异谱的不同观测者目视评估结果的鉴定方法

Evaluation method for degree of metamerism for change in observers

BS IEC 62055-41:2014 电量测量. 支付系统. 标准传输规格 (STS). 单程令牌载波系统的应用层协议

Electricity metering. Payment systems. Standard transfer specification (STS). Application layer protocol for one-way token carrier systems

DIN EN 61786-1:2014 关于人类接触的1 Hz至100 kHz的直流磁场, 交流磁场以及交流电领域的测量. 第1部分: 测量仪器的要求 (IEC 61786-1-2013); 德文版本EN 61786-1-2014

Measurement of DC magnetic, AC magnetic and AC electric fields from 1 Hz to 100 kHz with regard to exposure of human beings - Part 1: Requirements for measuring instruments (IEC 61786-1:2013); German version EN 61786-1:2014

IEEE Std C37.26-2014 低压(1000 V AC或更低)电感试验电路功率因数的测量方法指南

Guide for Methods of Power-Factor Measurement for Low-Voltage (1000 V AC or lower) Inductive Test Circuits

DIN EN 50413/A1:2014 有关人体暴露于电场, 磁场和电磁场的测量和计算程序的基本标准(0 Hz至300 GHz); 德文版本EN 50413-2008/A1-2013

Basic standard on measurement and calculation procedures for human exposure to electric, magnetic and electromagnetic fields (0 Hz - 300 GHz); German version EN 50413:2008/A1:2013

BS EN 61786-1:2014 关于人类接触的1 Hz至100 kHz的直流磁场, 交流磁场以及交流电领域的测量. 测量仪器的要求

Measurement of DC magnetic, AC magnetic and AC electric fields from 1 Hz to 100 kHz with regard to exposure of human beings. Requirements for measuring instruments

JJF 1457-2014 线缆测试仪校准规范

本规范适用于测试各种弱电线缆(或线束)工频交流耐电压、绝缘电阻、线缆直流电阻、线间电容的线缆测试仪的校准。本规范不适用于测试线缆高频特性的线缆测试仪的校准。

Calibration Specification for Cable Testers