Method and means for measuring particulate matter on a filter
AssigneeElectric Power Research Institute, Inc.
InventorOwen J. Tassicker
Life of this patent
Estimating the term…
Abstract
The amount of particulate matter deposited on a fabric filter during operating conditions is determined by capacitive measurements. The fabric filter material is mounted on a first perforated electrode and a second electrode is spaced from the first electrode and capacitively associated therewith. Capacitance between the electrodes varies with the amount of particulate matter on the filter. Bridge circuitry is employed to determine the capacitance between the electrodes.
Claims7
A method of determining the amount of particulate matter on a fabric filter comprising the steps of
- providing a first electrode on which said fabric filter is mounted,
- providing a second electrode in association with one end of said first electrode, providing a second electrode in association with another end of said first electrode, and providing a plurality of fourth electrodes between said second and third electrodes and in association with said first electrode, and
- determining the capacitance between said first electrode and said plurality of fourth electrodes.
A fabric filter module for removing particulate matter in a gaseous fluid and which allows the determination of the amount of particulate matter deposited on said filter under operating conditions comprising a first conductive means including a first perforated electrode and filter support, fabric filter material mounted on said first conductive means, second conductive means spaced from said first conductive means, and means electrically contacting said first and second conductive means whereby capacitance between said first and second conductive means can be determined.
Dependencies are inferred from the claim text.