US 11,927,579 B2
Device for detecting insect larvae and adult insects in stored products by sensing their volatile pheromones and semiochemicals
Nicholas Joseph Smilanich, Rocky River, OH (US); Samuel Firestone Reichert, Brunswick, OH (US); and Frank Bernard Tudron, Mentor, OH (US)
Assigned to Sensor Development Corporation, Elyria, OH (US)
Filed by Sensor Development Corporation, Elyria, OH (US)
Filed on Jan. 20, 2022, as Appl. No. 17/580,158.
Application 17/580,158 is a division of application No. 16/558,490, filed on Sep. 3, 2019, granted, now 11,272,699.
Application 16/558,490 is a continuation in part of application No. 16/265,368, filed on Feb. 1, 2019.
Claims priority of provisional application 62/784,916, filed on Dec. 26, 2018.
Claims priority of provisional application 62/625,000, filed on Feb. 1, 2018.
Prior Publication US 2022/0132822 A1, May 5, 2022
Int. Cl. G01N 33/00 (2006.01); A01M 1/02 (2006.01); G01N 27/12 (2006.01)
CPC G01N 33/0047 (2013.01) [A01M 1/026 (2013.01); G01N 27/123 (2013.01); G01N 27/127 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of identifying an insect infestation of a stored product by detecting one or more target volatile organic compounds (VOCs) within a target fluid flow, the method comprising:
heating, via a device comprising a plurality of VOC sensors, at least one of the plurality of VOC sensors to at least a first operating temperature;
contacting the one or more VOC sensors with the target fluid flow;
determining a set of conductance change values (ΔK) corresponding to each of the one or more VOC sensors contacted with the target fluid flow; and
determining a gas component concentration ([X]n) for one or more of the target VOCs within the target fluid flow based on the set of conductance change values,
wherein at least one of the plurality of VOC sensors is configured to detect the presence of an insect egg-specific VOC.