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JJF 1656-2017 English PDF

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JJF 1656-2017: Calibration Specification for Magnetometers Based Magnetic Force
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Basic data

Standard ID JJF 1656-2017 (JJF1656-2017)
Description (Translated English) Calibration Specification for Magnetometers Based Magnetic Force
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A55
Classification of International Standard 17.220
Word Count Estimation 16,145
Date of Issue 2017-11-20
Date of Implementation 2018-02-20
Regulation (derived from) AQSIQ Notice 2017 No. 103
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to magnetic field measurement range of 0. 05 mT ~ 10 mT magnetic magnetometer calibration.

JJF 1656-2017: Calibration Specification for Magnetometers Based Magnetic Force

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Magnetic force magnetometer calibration specification) People's Republic of China National Metrology Technical Specifications Magnetic Magnetometer Calibration Specifications Published on.2017-11-20 2018-02-20 Implementation The State Administration of Quality Supervision, Inspection and Quarantine issued Magnetic Magnetometer Calibration Specifications Integral Unit. National Electromagnetic Measurement Technical Committee Drafting unit. Beijing Institute of Metrology and Detection Shandong Institute of Metrology This code entrusts the National Electromagnetic Measurement Technical Committee to explain The main drafters of this specification. Lei Zhang (Beijing Institute of Metrology and Detection) Wu Yixuan (Beijing Institute of Metrology and Detection) Yan Hongrui (Shandong Institute of Metrology Science) Participating drafters. Gu Yang (Beijing Institute of Metrology and Detection) Sun Xiaoyan (Shandong Institute of Metrology Science) Yang Mei (Shandong Institute of Metrology)

table of Contents

Introduction (II) 1 Scope (1) 2 Overview (1) 3 Metrological characteristics (2) 3.1 The basic error of magnetic induction (2) 4 Calibration Conditions (2) 4.1 Environmental Conditions (2) 4.2 Measurement Standards and Other Equipment (2) 5 Calibration Items and Calibration Methods (3) 5.1 Calibration Items (3) 5.2 Calibration Methods (3) 6 Calibration result expression (3) 7 Re-school interval (4) Appendix A Evaluation of Measurement Uncertainty of Magnetic Magnetometers (5) Appendix B Calibration Original Record Format (8) Appendix C Calibration Certificate Inside Page Format (10)

Introduction

This specification is based on the national measurement technical specification JJF 1071-2010 "Rules for the preparation of national measurement calibration specifications", JJF 1001 "General Measurement Terms and Definitions", JJF 1059.1 "Evaluation and Expression of Measurement Uncertainty" was prepared. This specification is the first release. Magnetic Magnetometer Calibration Specifications

1 Scope

This specification is applicable to the calibration of a magnetic magnetometer with a magnetic field measuring range of 0.05mT to 10mT.

2 Overview

The magnetic force magnetometer works on the principle of magnetic force, and the instrument has a built-in magnetic pole connection pointer, when the magnetic magnetometer is in When the effective position is measured, the magnetic pole inside the instrument and the magnetic field to be measured will act to cause the pointer to deflect, and thus The magnetic induction intensity of the measured magnetic field is shown. Magnetic magnetometers are used to directly measure the remanence and non-destructive testing of objects. For example can be used in ferromagnetic materials and gold In the processing of the component parts, the amount of magnetization of the parts is measured directly, and it can also be used to measure the remaining parts of the demagnetized parts. Magnetic field. Magnetic magnetometer is generally a single range, the middle indicator is 0, the pointer indicates, close to or fit in the measurement Measuring the surface of the object directly. Its working principle is shown in Figure 1. Fig. 1 Principle of Magnetic Magnetometer The dial structure is shown in Figure 2.

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