US 11,988,591 B2
Modular optical particle counter sensor and apparatus
David Pariseau, Los Altos, CA (US); and Adam Giandomenico, Walpole, MA (US)
Assigned to Particles Plus, Inc., Stoughton, MA (US)
Filed by Particles Plus, Inc., Stoughton, MA (US)
Filed on Dec. 31, 2020, as Appl. No. 17/139,625.
Claims priority of provisional application 63/061,761, filed on Aug. 5, 2020.
Claims priority of provisional application 63/047,230, filed on Jul. 1, 2020.
Prior Publication US 2022/0003654 A1, Jan. 6, 2022
Int. Cl. G01N 15/14 (2006.01); G01N 15/1404 (2024.01); G01N 15/1429 (2024.01)
CPC G01N 15/1429 (2013.01) [G01N 15/1404 (2013.01); G01N 2015/1402 (2013.01); G01N 2015/1486 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A compact optical particle counter comprising:
an optical particle counter having a housing that contains a controller, a light source, a light detector, a flow channel manifold to move a particle flow through a beam of light, wherein the flow channel manifold includes a venturi;
a signal processing circuit to process detected signals above a threshold for at least one output channel, an analog to digital converter that converts analog signals above the threshold to digital signals to generate particle count data;
wherein the controller is connected to a memory and a communication port connected to a communication network, wherein the controller operates a communication interface that transmits operational state data for the optical particle counter regarding an operational mode to an external computing device; and
a circuit board on which the signal processing circuit and the controller are mounted, the circuit board further comprising a connector to electrically connect the controller to a detachable circuit board module that controls at least one operational mode of the optical particle counter.