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Material- and system integration

Energy Harvesting Sensor Monitoring Micro Power Generator Low -Frequency Vibrations


Self-powered remote systems and sensor networks are needed in many emerging applications including environmental monitoring, medical devices, and others. Energy harvesting has become popular recently because of the need for long-lasting renewable energy sources. By harvesting energy, power can be generated from various environmental sources such as ambient heat, light, acoustic noise, vibration, and ambient RF signals. We are working on advancing the state-of-the-art by developing integrated energy harvesting systems using novel materials, advanced mechanical design, non-traditional fabrication, and cutting-edge power management electronics.

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Fields of application

  • Wireless Sensor Monitoring

  • Micro Power Generator


  • Dr. Tzeno Galchev, Post-Doc

  • B.SC. Abdalrahman Sayed Herbawi, M.Sc. student

  • Roy Raz, scientific collaborator



Project promotion by the Alexander von Humboldt foundation

Selected publications

  • T. Galchev, H. Kim, and K. Najafi
    Micro Power Generator For Harvesting Low-Frequency and Non-Periodic Vibrations
    2011, IEEE/ASME Journal of Microelectromechanical Systems, volume: 20, pages: 852-866

  • T. Galchev, J. McCullagh, R.L. Peterson, K. Najafi, and A. Mortazawi
    Energy Harvesting of Radio Frequency and Vibration Energy to Enable Wireless Sensor Monitoring of Civil Infrastructure
    2011, SPIE Smart Structures/NDE, San Diego, CA

  • T. Galchev, E. E. Aktakka, and K. Najafi
    A Piezoelectric Parametric Frequency Increased Generator for Harvesting Low-Frequency Vibrations
    IEEE/ASME Journal of Microelectromechanical Systems, in press


Alexander von Humbold Foundation


Tzeno Galchev

Email: Tzeno.galchev@imtek.de

Tel.: +49 (0) 761 203-7199

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