Abstract
A simple and compact apparatus for measuring small values of magnetostriction of ribbon-shaped ferromagnetic amorphous alloys was built. The apparatus consists of an open flux of highly sensitive and stable AC flux integrator, a set of solenoid coils to magnetise the ribbon and to pick up the flux change off the ribbon and a clamping jig to alloy tensile stress by a spring balance. The AC hysteresis loops along the ribbon axis are stored in a digital memory and recorded on an X-Y recorder. The measuring frequency, a typical field strength and the maximum tensile stress are 8 Hz, 0.8 to 3.2 kA m-1 and 109 N m-2, respectively. The apparatus makes it possible to measure the magnetostriction of the thin amorphous ribbon of the order of 10-6 to 10 -8 with an accuracy of 5 to 10%, by analysing constricted hysteresis loops of the stressed ribbon.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
