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Gerald Wiegand Phones & Addresses

  • Boston, MA
  • San Francisco, CA
  • Redwood City, CA
  • 25200 Carlos Bee Blvd, Hayward, CA 94542

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Gerald Wiegand

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Location:
United States

Publications

Us Patents

Highly Time Resolved Impedance Spectroscopy

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US Patent:
7015701, Mar 21, 2006
Filed:
Mar 4, 2003
Appl. No.:
10/382732
Inventors:
Gerald Wiegand - San Francisco CA, US
Erich Sackman - Muenchen, DE
International Classification:
G01R 27/02
US Classification:
324603
Abstract:
A highly time resolved impedance spectroscopy enhances measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a. c. , or transient, voltage signal is used as the perturbation signal, non-stationary time to frequency transformation algorithms are used when processing the measured time signals of the voltage and current to determine impedance spectra which are localized in time; and the system-characterizing quantities are determined from the impedance spectra using equivalent circuit fitting in a time-resolution-optimized form. Also provided are measuring cells and methods for measuring impedance spectra of biofunctional molecules and aggregates.

Highly Time Resolved Impedance Spectroscopy

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US Patent:
6556001, Apr 29, 2003
Filed:
Sep 29, 2000
Appl. No.:
09/675705
Inventors:
Gerald Wiegand - Hayward CA, 94542
Erich Sackman - D-81827 Munich, DE
International Classification:
G01N 332
US Classification:
324 7621, 324 711, 324 712, 73808
Abstract:
A highly time resolved impedance spectroscopy that enhances the measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a. c. , or transient, voltage signal is used as the perturbation signal, non-stationary time to frequency transformation algorithms are used when processing the measured time signals of the voltage and current to determine impedance spectra which are localized in time; and the system-characterizing quantities are determined from the impedance spectra using equivalent circuit fitting in a time-resolution-optimized form.
Gerald Wiegand from Boston, MA, age ~52 Get Report