{"id":422646,"date":"2024-10-20T06:42:14","date_gmt":"2024-10-20T06:42:14","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60404-72020-2\/"},"modified":"2024-10-26T12:33:54","modified_gmt":"2024-10-26T12:33:54","slug":"bs-en-iec-60404-72020-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60404-72020-2\/","title":{"rendered":"BS EN IEC 60404-7:2020"},"content":{"rendered":"

This part of IEC 60404 specifies a method of measurement of the coercivity of magnetic materials in an open magnetic circuit.<\/p>\n

This document is applicable to all magnetic materials with coercivities from 0,2 A\/m to 160 kA\/m.<\/p>\n

\n

NOTE Examples of magnetic materials covered by this document are amorphous alloys, nanocrystalline alloys, all softmagnetic crystalline materials (e.g. Fe, FeSi-, CoFe-and FeNi-alloys), soft ferrites, hard metals, semi-hard magnetic alloys (e.g. FeCoTiAl-, FeCoV-, FeCrCo-and AlNiCo-alloys) [1]. 1 <\/sup><\/p>\n<\/blockquote>\n

Special precautions are to be taken in measuring coercivities below 40 A\/m, in materials with high conductivity and in test specimens which have a shape different from ellipsoids (see Annex A).<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
6<\/td>\nFOREWORD <\/td>\n<\/tr>\n
8<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
9<\/td>\nFigures
Figure 1 \u2013 Demagnetizing B(H) and J(H) curves from saturation <\/td>\n<\/tr>\n
10<\/td>\n4 Principle of the method
Figure 2 \u2013 Circuit diagram for Methods A and B <\/td>\n<\/tr>\n
11<\/td>\n5 Test specimen
6 Solenoid
7 Compensation for the earth\u2019s magnetic field and static and dynamic magnetic noise fields
8 Magnetic shielding of the measurement region
9 Measurement
9.1 Magnetization <\/td>\n<\/tr>\n
12<\/td>\n9.2 Measuring methods
9.2.1 General
9.2.2 Method A
Figure 3 \u2013 Method A, magnetic flux sensing probe: Hall probe <\/td>\n<\/tr>\n
13<\/td>\n9.2.3 Method B
Figure 4 \u2013 Method A, magnetic flux sensing probe: differential fluxgate probe <\/td>\n<\/tr>\n
14<\/td>\n9.3 Determination of coercivity
Figure 5 \u2013 Method B, magnetic flux sensing probe: differential fluxgate probe <\/td>\n<\/tr>\n
15<\/td>\n9.4 Reproducibility
Figure 6 \u2013 Magnetic polarisation J over the length L of a cylindrical rod <\/td>\n<\/tr>\n
16<\/td>\n10 Test report <\/td>\n<\/tr>\n
17<\/td>\nAnnex A (normative) Precautions to be taken for measurements of coercivity below 40 A\/m, with a complex shaped test specimen and some special cases
A.1 Coercivity below 40 A\/m
A.2 Coercivity measurement of test specimens with complex shapes
A.3 Optimization of the amplitude and time of the magnetizing cycle for a test specimen of soft magnetic material
A.4 Mechanical stress and heating of the test specimen in the solenoid <\/td>\n<\/tr>\n
18<\/td>\nAnnex B (informative)Method C with a VSM (Vibrating Sample Magnetometer)
Figure B.1 \u2013 Schematic diagram of Method C with a VSM <\/td>\n<\/tr>\n
20<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Magnetic materials – Method of measurement of the coercivity (up to 160 kA\/m) of magnetic materials in an open magnetic circuit<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":422655,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-422646","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/422646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/422655"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=422646"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=422646"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=422646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}