US 12,222,320 B2
Photoionization detector and method of operating same
Miao Xu, Bolingbrook, IL (US); Wenfeng Peng, North Aurora, IL (US); Mariusz Kloza, Orlando, FL (US); and Amram Netanel Afenzer, Skokie, IL (US)
Assigned to Molex, LLC, Lisle, IL (US)
Filed by Molex, LLC, Lisle, IL (US)
Filed on Dec. 22, 2023, as Appl. No. 18/393,741.
Application 18/393,741 is a continuation of application No. 18/107,131, filed on Feb. 8, 2023, granted, now 11,885,766.
Application 18/107,131 is a continuation of application No. 17/549,182, filed on Dec. 13, 2021, granted, now 11,604,164, issued on Mar. 14, 2023.
Claims priority of provisional application 63/124,892, filed on Dec. 14, 2020.
Prior Publication US 2024/0159707 A1, May 16, 2024
Int. Cl. G01N 27/66 (2006.01); G01N 33/00 (2006.01)
CPC G01N 27/66 (2013.01) [G01N 33/0047 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A photoionization detector comprising:
a counter electrode on a top surface of an electrically insulative substrate configured to apply a first electric potential;
a sensing electrode on a bottom surface of the electrically insulative substrate configured to apply a second electric potential;
a third electrode configured to apply a third electric potential and having a pin mounting hole positioned for a first pin to pass therethrough the substrate and electrically separate the sensing electrode from the counter electrode; and
a cavity of the electrically insulative substrate wherein gas is capable of being ionized.