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GB0522888D0 - Measurement of the electrical impedance frequency spectrum - Google Patents

Measurement of the electrical impedance frequency spectrum

Info

Publication number
GB0522888D0
GB0522888D0 GB0522888A GB0522888A GB0522888D0 GB 0522888 D0 GB0522888 D0 GB 0522888D0 GB 0522888 A GB0522888 A GB 0522888A GB 0522888 A GB0522888 A GB 0522888A GB 0522888 D0 GB0522888 D0 GB 0522888D0
Authority
GB
United Kingdom
Prior art keywords
output
sample
analogue
impedance frequency
connection means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GB0522888A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAWAD SHADY D
University of Southampton
Original Assignee
GAWAD SHADY D
University of Southampton
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GAWAD SHADY D, University of Southampton filed Critical GAWAD SHADY D
Priority to GB0522888A priority Critical patent/GB0522888D0/en
Publication of GB0522888D0 publication Critical patent/GB0522888D0/en
Priority to PCT/GB2006/004185 priority patent/WO2007054700A1/en
Ceased legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

The invention provides apparatus for measuring the AC electrical parameters of a sample, such as an electric component, electric network, material when dry or in liquid, the apparatus comprising a generator for generating a pseudo random binary sequence, a digital to analogue (D/A) unit or equivalent, or other means to output the sequence in digital or analogue format, first connection means for connecting the output of the generator to the input of the D/A, sample input connection means adapted to apply the output of the D/A to the sample, sample output connection means for connecting a sample output to an analogue to digital converter (A/D) or equivalent, and an output processing unit being configured for subjecting the output of the A/D to a Hadamard Transform followed by a Fast Fourier Transform (FFT) for producing in use a measurement of the complex impedance frequency response of the sample . The inventive apparatus can acquire the impedance frequency spectrum (calculated from the measured transfer function) of a system in a very short time, typically 1 microsecond to 5 seconds.
GB0522888A 2005-11-10 2005-11-10 Measurement of the electrical impedance frequency spectrum Ceased GB0522888D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0522888A GB0522888D0 (en) 2005-11-10 2005-11-10 Measurement of the electrical impedance frequency spectrum
PCT/GB2006/004185 WO2007054700A1 (en) 2005-11-10 2006-11-09 Measurement of the electrical impedance frequency spectrum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0522888A GB0522888D0 (en) 2005-11-10 2005-11-10 Measurement of the electrical impedance frequency spectrum

Publications (1)

Publication Number Publication Date
GB0522888D0 true GB0522888D0 (en) 2005-12-21

Family

ID=35516654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0522888A Ceased GB0522888D0 (en) 2005-11-10 2005-11-10 Measurement of the electrical impedance frequency spectrum

Country Status (2)

Country Link
GB (1) GB0522888D0 (en)
WO (1) WO2007054700A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009114115A1 (en) 2008-03-10 2009-09-17 S.E.A. Medical Systems, Inc. Intravenous fluid monitoring
US9052276B2 (en) 2009-06-08 2015-06-09 S.E.A. Medical Systems, Inc. Systems and methods for the identification of compounds using admittance spectroscopy
SG176600A1 (en) 2009-06-08 2012-01-30 S E A Medical Systems Inc Systems and methods for the identification of compounds in medical fluids using admittance spectroscopy
MX2013002664A (en) 2010-09-09 2013-04-19 S E A Medical Systems Inc METHOD AND SYSTEMS FOR THE MANAGEMENT OF INTRAVENOUS PHARMACUS USING IMMITTANCE SPECTROSCOPY.
EE05668B1 (en) 2011-08-30 2013-08-15 Tallinna Tehnika�likool Method and apparatus for wide band analysis of systems and substances
JP5325963B2 (en) 2011-10-24 2013-10-23 本田技研工業株式会社 Sequential impedance measurement method, measurement device, and fuel cell system
DE102012218107B4 (en) 2012-10-04 2023-04-27 Bender Gmbh & Co. Kg Method for monitoring and measuring an insulation resistance with an interference-resistant measuring signal and associated signal generator
US11096629B2 (en) * 2015-09-14 2021-08-24 Stichting Imec Nederland Bio-impedance spectroscopy system and method for bio-impedance measurement
WO2024126422A1 (en) * 2022-12-12 2024-06-20 Ilmsens Gmbh Method and measuring system for performing measurements by means of impedance spectroscopy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9523406D0 (en) * 1995-11-16 1996-01-17 Aromascan Plc Sensor transduction

Also Published As

Publication number Publication date
WO2007054700A1 (en) 2007-05-18

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)