An electromagnetic micro power generator for low-frequency environmental vibrations

By Haluk Kulah, Khalil Najafi. 17th IEEE International Conference on Micro Electro Mechanical Systems. Maastricht MEMS 2004 Technical Digest, 2004

218 citations recorded by the source corpus.

Subfields: Electrical and Electronic Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/f4e30838906d64ac7723fe87175a5a63bf524e2d

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Citations in the corpus

A coupled piezoelectric–electromagnetic energy harvesting technique for achieving increased power output through damping matching (2009, background): “Other work in this area includes a novel approach of up-converting the frequency to achieve higher power output from low frequency sources [10].”
Energy Scavenging From Low-Frequency Vibrations by Using Frequency Up-Conversion for Wireless Sensor Applications (2008, background): “This paper reports the detailed analysis and macroscale implementation results for an EM vibration-to-electrical power generator, which can effectively scavenge energy from low-frequency external vibrations (1–100 Hz) by mechanically up-converting the ambient vibration frequency [23].”
Energy harvesting vibration sources for microsystems applications (2006, background): “4 50 30 cm3 Steel UK company Kulah [86] 2.”
Parylene-based electret power generators (2008, unknown): “Electromagnetic power generators generate power when conductors, usually in the form of coils, cut across a magnetic field from a magnet [10, 27, 28].”
A vibration energy harvesting device with bidirectional resonance frequency tunability (2008, methodology): “In addition to simple cantilever-based models, a novel way of up-converting the frequency was proposed to achieve higher power output from the given vibrations using electromagnetic power generation in a manner compatible with MEMS scale technology [10].”
Review of Microscale Magnetic Power Generation (2007, methodology): “Kulah and Najafi at the University of Michigan [52] extended this idea of resonating cantilevers, but devised a method of up-converting low-frequency mechanical vibrations to induce higher frequency resonance in the cantilevers.”
Potential benefits of a non-linear stiffness in an energy harvesting device (2010, background): “Kulah and Najafi [5] developed a generator which converts low frequency ambient vibrations to a much higher frequency through an electromechanical frequency upconverter using a magnet that provides efficient energy conversion even for low ambient frequencies.”
Harvesting traffic-induced vibrations for structural health monitoring of bridges (2011, background): “This mechanical transformation decouples the internal operation of the harvester from the ambient vibration frequency providing two important benefits: (1) by upconverting [19, 20] the ambient vibration frequency, the PFIG achieves better electromechanical coupling and efficiency in converting the l”
An Electromagnetic Micro Power Generator for Low-Frequency Environmental Vibrations Based on the Frequency Upconversion Technique (2009, methodology): “This technique was proposed first by Kulah and Najafi with a milliscale implementation [ 19 ] and shown to work in microscale for the first time in the work of Sari et al. [21].”
Toward the blue energy dream by triboelectric nanogenerator networks (2017, background): “The EMG is not effective for harvesting such “random” energy [36].”
Micro Power Generator for Harvesting Low-Frequency and Nonperiodic Vibrations (2011, methodology): “This concept is known as frequency up-conversion, and it was developed at the University of Michigan by Kulah and Najafi [31], [32].”