Sample monitoring and flow control systems and methods are disclosed for monitoring of airborne particulates. A system may include a particle collection filter. The system also includes a fluid moving device for moving a sample through the particle collection filter. Further, the system includes a light source configured to direct irradiating light towards the particle collection filter. The system also includes a light detector positioned to receive the irradiating light passing through the particle collection filter and configured to generate a signal representative of an amount of the received light. Further, the system includes a controller configured to receive the signal and to control the fluid moving device based on the amount of the received light.
Systems, devices, and methods for flow control and sample monitoring control
Clayton, A. C., Walls, H. J., Ensor, D. S., & Khlystov, A. Y. (2019). Systems, devices, and methods for flow control and sample monitoring control. (U.S. Patent No. 10,345,216). http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=10,345,216.PN.&OS=PN/10,345,216&RS=PN/10,345,216
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