Method and means for measuring particulate matter on a filter

Details Method and means for measuring particulate matter on a filter Method and means for measuring particulate matter on a filter

1981-05-29

1983-08-30

Gill, James J.

Measuring and testing

Gas analysis

Solid content of gas

55270, 324 61R, 340607, B01D 4600, G01D 2100

Patent

active

044009712

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.

REFERENCES:
patent: 3221248 (1965-11-01), Batteau et al.
patent: 3502970 (1970-03-01), Thayer
patent: 4134063 (1979-01-01), Nicol et al.
patent: 4183029 (1980-01-01), Isayama et al.

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