G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/02 (2006.01) G01N 25/00 (2006.01) G01N 25/14 (2006.01) G01N 27/22 (2006.01)
Patent
CA 2139940
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.
Brobeck Chris
Hall John Charles Ebenezer
Inkpen Stuart Louis
Marshall Chris
Nolan Chris
Heenan Blaikie Llp
Instrumar Limited
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