| CPC B01D 46/0086 (2013.01) [B01D 46/009 (2013.01); B01D 46/429 (2013.01); B01D 46/442 (2013.01)] | 12 Claims |
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1. A filter element monitoring system comprising:
a filter media;
a passive circuit provided on the filter media;
the passive circuit having a notch in the form of at least one gap or break provided in the circuitry thereof, the notch being configured to provide a first state of the passive circuit in a clean state of the filter media;
wherein a stream of a fluid is configured to be directed through the filter media,
wherein the filter media is configured to remove particulates from the stream;
wherein the filter media is pleated and the passive circuit is located in a pleat of the filter media;
wherein the filter media is configured to collect a buildup of particulates until a contaminated state occurs in which at least one pleat of the filter media is deformed by the buildup or has reached a particular load of particulates,
wherein in the contaminated state of the filter media the circuitry is configured to provide a second state of the passive circuit;
wherein the buildup of particulates on the filter media causes an increase in pressure on the filter media of a filter element,
wherein the increase in pressure causes the deformation,
wherein the passive circuit comprises
a first side having an open circuit with the notch and
a second side having a conductive material with a pleat fold between the first side and the second side, and
wherein the deformation of the at least one pleat causes the first side to contact with the second side and the conductive material closes the open circuit.
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