Gas sensors
AssigneeE2V Technologies (UK) Limited
InventorsGraham Hopkins, Andrew Hayward, Brian Thomas Wells
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Abstract
A gas sensor comprises a body (1) on which is mounted an optical source (7) and a detector means (8) sensitive to light from the source. The body further comprises a channel (5) arranged to admit gas, the channel comprising an elongated groove having reflective surfaces defining a folded optical path for light from the source. The groove is arranged as a serpentine shape or spiral shape so that light from the source to detector travels around the groove being internally reflected within the shape.
Claims19
A gas sensor comprising a body, on which is mounted an optical source and detector means sensitive to light from the source, the body further comprising a channel arranged to admit gas, the channel comprising an elongated groove having reflective surfaces defining a folded optical path for light from the source.
A gas sensor, substantially as hereinbefore described, with reference to, or as illustrated in, the accompanying drawings.
Dependencies are inferred from the claim text.