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Impedance Analyzer

Tech ID #: 1329.1 CONNECT WITH A MANAGER FOR LICENSING

Areas of Application

There are many industries that would benefit from an accurate portable, low-cost impedance analyzer including:

  • Agriculture
    • Monitoring growth, ageing, ripeness and possible contamination
    • In-field long-time monitoring
  • Food Characterization
    • Quality assessment, water composition (i.e., dairy products, meat)
    • Expiration dates
  • Biomedical applications
    • Diagnostics - determine different physiopathological states
    • Fitness devices - estimate body composition
    • Glucose measurement
  • Cancer detection
  • Research
    • Detection of cellular responses
  • Automotive Industry
    • Determine paint quality and detect corrosion
IP Status
  • Patent Filed
Publication List
  • A. A. Al-Ali, A. S. Elwakil, B. J. Maundy, “Bio-impedance Measurements with Phase Extraction using the Kramers-Kronig transform: Application to Strawberry Aging”, submitted to IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), 2018
  • A. A. Al-Ali, B. J. Maundy, A. S. Elwakil, “Design and Implementation of a Bio-Impedance Analyzer Based on The Kramers-Kronig Transform”, Accepted in The International Symposium on Circuits and Systems (ISCAS) 2018
  • A. Al-Ali, A. Elwakil, B. Maundy, and T. Freeborn, “Extraction of phase information from magnitude-only bio-impedance measurements using a modified Kramers–Kronig transform,” Circuits, Systems, and Signal Processing, vol. DOI: 10.1007/s00034-017-0727-y, pp. 1–16, 2018
  • A. A. Al-Ali, A. S. Elwakil, A. Ahmad, and B. J. Maundy, “Design of a portable low-cost impedance analyzer,” in 10th Joint Int. Conf. on Biomedical Engineering Systems and Technologies (BIOSTEC 2017) and Biomedical Electronics and Devices (BIODEVICES-2017), vol. 1, Feb. 2017, pp. 104–109
Competitive Advantages
  • Low cost and simple design
  • Low-power
  • Accurate - comparable to precision lab devices
  • Portable/Hand-held
Stage Of Development

This portable impedance analyzer is based on a novel phase extraction algorithm that has been tested on standard circuits as well as many types of fruits and vegetable samples. The accuracy, when compared to BAS-Zahner IM6 and N4L PSM 1735 which are precise commercial impedance analyzers, is excellent.