Note: Optical filter method for high-resolution magnetostriction measurement using fiber Bragg grating under millisecond-pulsed high magnetic fields at cryogenic temperatures
High-resolution magnetostriction measurement of ΔL/L ∼ 10−6 at a speed of 5 MHz is performed using the optical filter method as the detection scheme for the fiber Bragg grating (FBG) based strain monitor under 35-ms pulsed high magnetic fields up to 45 T at 2.2 K. The resolution of magnetostriction...
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Veröffentlicht in: | Review of scientific instruments 2018-09, Vol.89 (9), p.096103-096103 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | High-resolution magnetostriction measurement of ΔL/L ∼ 10−6 at a speed of 5 MHz is performed using the optical filter method as the detection scheme for the fiber Bragg grating (FBG) based strain monitor under 35-ms pulsed high magnetic fields up to 45 T at 2.2 K. The resolution of magnetostriction is about the same order as the conventionally reported value from FBG based magnetostriction measurement systems for millisecond pulsed magnetic fields. The measurement speed is ∼100 times the conventional ones. The present system can be a faster alternative for the conventional FBG based magnetostriction measurement system for millisecond pulsed high magnetic fields. |
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ISSN: | 0034-6748 1089-7623 |
DOI: | 10.1063/1.5034035 |