Photoionization detector (pid) for detecting gas
AssigneeLife Safety Distribution AG
InventorsChuang HUANG, Feng LIANG, Hao ZHU, Yu HU
Life of this patent
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Abstract
A photoionization detector (PID) and method for PID is disclosed. The PID comprises a primary pole and a secondary pole spaced apart from the primary pole. The secondary pole is coupled to a bias voltage source. The secondary pole is exposed to ultraviolet (UV) light emitted from at least one UV light source for generating photo-induced electrons. The PID further comprises at least one gas port associated with the secondary pole configured to flow gas in between the primary pole and the secondary pole for absorbing the UV light to alter the generated photo-induced electrons.
Claims20
A photoionization detector (PID) comprising:
- a primary pole;
- a secondary pole spaced apart from the primary pole and coupled to a bias voltage source, wherein the secondary pole is exposed to ultraviolet (UV) light emitted from at least one UV light source for generating photo-induced electrons;
- and,
- at least one gas port associated with the secondary pole configured to flow gas in between the primary pole and the secondary pole for absorbing the UV light to alter the generated photo-induced electrons.
A method for photoionization detector (PID), the method comprising:
- exposing, via at least one ultraviolet (UV) light source, a secondary pole to UV light to generate photo-induced electrons, wherein the secondary pole is spaced apart from a primary pole, and coupled to a bias voltage source;
- facilitating, via at least one gas port associated with the secondary pole, flow of gas in between the primary pole and the secondary pole, for absorbing the UV light to alter the generated photo-induced electrons.
Dependencies are inferred from the claim text.