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Low-Cost Vibrating Sample Magnetometer by marcos.roberto is a document available to read on EtoBox.

What is Low-Cost Vibrating Sample Magnetometer about?

The document describes a low-cost vibrating sample magnetometer built using audio components like a sound card. It compares the sensitivity of the sound card based instrument to commercial lock-in amplifiers. Three magnetic samples - nickel, perm-alloy thin film, and Co/Pt multilayer - are characterized to test the instrument. The sensitivity is optimized by varying the vibration frequency, with the best sensitivity of around 2 micro-emu achieved at 34.7 Hz using the sound card.

Author

marcos.roberto

Language

EN