A measuring system for magnetostriction of silicon steel sheet using optical methods and a single sheet tester has been developed to establish a standard test method for IEC and JIS. Various factors affecting measurement accuracy and reproducibility of the developed system are examined. Two optical instruments, such as a laser Doppler vibrometer and a heterodyne displacement meter, are compared. 3-D characteristics of magnetostriction under ac excitation in the rolling direction are measured up to 2.0 T
en-copyright= kn-copyright= en-aut-name=NakaseTomoya en-aut-sei=Nakase en-aut-mei=Tomoya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=NakanoMasanori en-aut-sei=Nakano en-aut-mei=Masanori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=FujiwaraF. en-aut-sei=Fujiwara en-aut-mei=F. kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=TakahashiN. en-aut-sei=Takahashi en-aut-mei=N. kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Okayama University affil-num=2 en-affil= kn-affil=Okayama University affil-num=3 en-affil= kn-affil=Okayama University affil-num=4 en-affil= kn-affil=Okayama University en-keyword=Doppler measurement kn-keyword=Doppler measurement en-keyword=ferromagnetic materials kn-keyword=ferromagnetic materials en-keyword=iron alloys kn-keyword=iron alloys en-keyword=magnetic variables measurement kn-keyword=magnetic variables measurement en-keyword=magnetostriction kn-keyword=magnetostriction en-keyword=measurement by laser beam kn-keyword=measurement by laser beam en-keyword=silicon alloys kn-keyword=silicon alloys END start-ver=1.4 cd-journal=joma no-vol= cd-vols= no-issue= article-no= start-page=220 end-page=220 dt-received= dt-revised= dt-accepted= dt-pub-year=1998 dt-pub=19981 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Measuring System of Magnetostriction Under AC Excitation Using Optical Methods en-subtitle= kn-subtitle= en-abstract= kn-abstract=A measuring system for magnetostriction of silicon steel sheet using optical methods and a single sheet tester has been developed to establish a standard test method for IEC and JIS. Various factors affecting measurement accuracy and reproducibility of the developed system are examined. Two optical instruments, such as a laser Doppler vibrometer and a heterodyne displacement meter, are compared. 3-D characteristics of magnetostriction under ac excitation in the rolling direction are measured up to 2.0 T
en-copyright= kn-copyright= en-aut-name=NakaseTomoya en-aut-sei=Nakase en-aut-mei=Tomoya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=NakanoMsanori en-aut-sei=Nakano en-aut-mei=Msanori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=FujiwaraF. en-aut-sei=Fujiwara en-aut-mei=F. kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=TakahashiN. en-aut-sei=Takahashi en-aut-mei=N. kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Okayama University affil-num=2 en-affil= kn-affil=Okayama University affil-num=3 en-affil= kn-affil=Okayama University affil-num=4 en-affil= kn-affil=Okayama University en-keyword=Doppler measurement kn-keyword=Doppler measurement en-keyword=ferromagnetic materials kn-keyword=ferromagnetic materials en-keyword=iron alloys kn-keyword=iron alloys en-keyword=magnetic variables measurement kn-keyword=magnetic variables measurement en-keyword=magnetostriction kn-keyword=magnetostriction en-keyword=measurement by laser beam kn-keyword=measurement by laser beam en-keyword=silicon alloys kn-keyword=silicon alloys END