Tohoku University Technology: High-sensitivity and low cost vibration sensor: T17-103
Vibration detection using unique shape of sensor and amount of changing high frequency impedance
So far, the laser doppler vibrometer or the accelerometer using microelectromechanical system is known to be the most high sensitive vibrometer with actual technology. However, many vibrometers can’t be used in one object due to its high cost. On the other hand, the strain gauge is known to be cheap but the sensitivity is not enough high in order to detect abnormal vibration. This invention has focus on bending a magnetic material can generate a high sensitive permeability variation where it can be detected as HF impedance variation, and the shape of cantilever. This invention can provide high-sensitivity vibration sensor at low cost.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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