磁性リボンを用いたリモート粘度・密度センサ(ソフト磁性材料)

概要

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This paper describes the use of magnetoelastic ribbon as a remote viscosity and density sensor. Magnetoelastic ribbon was placed in an AC magnetic field generated by an external coil. The vibration of the ribbon could be monitored with a pickup coil and it reached its maximum value at the mechanical resonant frequency based on the magnetostriction effect. We confirmed that the mechanical resonant frequency of the ribbon was proportional to the square root of the product of the viscosity and density of the surrounding liquids. Moreover, we demonstrated that we could measure the viscosity of the liquid when it was very high by dipping only the edge of the ribbon in the liquid. These results suggest that this configuration is a promising candidate for use as a remote viscosity and/or density sensor
社団法人日本磁気学会の論文
2005-02-01