CA2139940A1 - Device and method for identifying and quantifying layered substances - Google Patents

Device and method for identifying and quantifying layered substances

Info

Publication number
CA2139940A1
CA2139940A1 CA002139940A CA2139940A CA2139940A1 CA 2139940 A1 CA2139940 A1 CA 2139940A1 CA 002139940 A CA002139940 A CA 002139940A CA 2139940 A CA2139940 A CA 2139940A CA 2139940 A1 CA2139940 A1 CA 2139940A1
Authority
CA
Canada
Prior art keywords
substances
overlying
identifying
electrodes
quantifying
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.)
Granted
Application number
CA002139940A
Other languages
French (fr)
Other versions
CA2139940C (en
Inventor
Stuart Louis Inkpen
John Charles Ebenezer Hall
Chris Brobeck
Chris Nolan
Chris Marshall
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.)
Instrumar Ltd
Original Assignee
Individual
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
Priority claimed from CA002080067A external-priority patent/CA2080067C/en
Application filed by Individual filed Critical Individual
Priority to CA002139940A priority Critical patent/CA2139940C/en
Priority claimed from PCT/CA1993/000416 external-priority patent/WO1994008233A1/en
Publication of CA2139940A1 publication Critical patent/CA2139940A1/en
Application granted granted Critical
Publication of CA2139940C publication Critical patent/CA2139940C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

An apparatus for identifying and measuring in real time substances overlying a surface comprises a plurality of electrodes, a temperature sensor, an electrode control system connected to the plurality of electrodes for defining an electric field, an amplitude and phase measurement system connected to the plurality of electrodes and to the electrode control system for measuring a plurality of currents responsive to the electric field and converting the currents to a measurement set and computer for storing a map comprising a partition of a vector space of predetermined characteristics of substances into regions of profiles corresponding to the substances which could be overlying the surface. The computer correlates the measurement set with the map thereby identifying and quantifying the substances overlying the surface and generates an output signal corresponding to the identity and quantity of substances overlying the surface. A display responsive to the output signal displays the identity and quantity of substances overlying the surface.
CA002139940A 1992-10-07 1993-10-07 Device and method for identifying and quantifying layered substances Expired - Fee Related CA2139940C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002139940A CA2139940C (en) 1992-10-07 1993-10-07 Device and method for identifying and quantifying layered substances

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CA002080067A CA2080067C (en) 1992-10-07 1992-10-07 Device and method for identifying and quantifying layered substances
CA2,080,067 1992-10-07
US07/977,833 1992-11-17
US07/977,833 US5394340A (en) 1992-10-07 1992-11-17 Device and method for identifying and quantifying layered substances
CA002139940A CA2139940C (en) 1992-10-07 1993-10-07 Device and method for identifying and quantifying layered substances
PCT/CA1993/000416 WO1994008233A1 (en) 1992-10-07 1993-10-07 Device and method for identifying and quantifying layered substances

Publications (2)

Publication Number Publication Date
CA2139940A1 true CA2139940A1 (en) 1994-04-14
CA2139940C CA2139940C (en) 2004-03-30

Family

ID=27169210

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002139940A Expired - Fee Related CA2139940C (en) 1992-10-07 1993-10-07 Device and method for identifying and quantifying layered substances

Country Status (1)

Country Link
CA (1) CA2139940C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013102266A1 (en) 2012-01-06 2013-07-11 Instrumar Limited Apparatus and method of monitoring for matter accumulation on an aircraft surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013102266A1 (en) 2012-01-06 2013-07-11 Instrumar Limited Apparatus and method of monitoring for matter accumulation on an aircraft surface

Also Published As

Publication number Publication date
CA2139940C (en) 2004-03-30

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Legal Events

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EEER Examination request
MKLA Lapsed