FLUOROMETER WITH MULTIPLE DETECTION CHANNELS

摘要

An optical sensor may have multiple detection channels to detect different characteristics of a fluid. For example, an optical sensor used in industrial cleaning and sanitizing applications may have multiple detection channels to detect when a system is both clean and properly sanitized. In one example, an optical sensor includes an optical emitter that directs light into a fluid, a first optical detector that detects light transmitted through the fluid, a second optical detector that detects light scattered by the fluid, and a third optical detector that detects fluorescent emissions emitted by the fluid. The optical emitter and optical detectors can be positioned around an optical analysis area. The optical sensor may include filters that control the characteristics of light detected by each of the optical detectors.

主权项

1. An optical sensor comprising:
an optical emitter that is configured to direct light into a fluid sample; a first optical detector that is configured to detect light emitted by the optical emitter and transmitted through the fluid sample; a second optical detector that is configured to detect light emitted by the optical emitter and scattered by the fluid sample; a third optical detector that is configured to detect fluorescent emissions emitted by the fluid sample in response to the light emitted by the optical emitter; an optical emission filter positioned between the optical emitter and the fluid sample; a first optical detection filter positioned between the first optical detector and the fluid sample; a second optical detection filter positioned between the second optical detector and the fluid sample; and a third optical detection filter positioned between the third optical detector and the fluid sample, wherein the optical emission filter, the first optical detection filter, and the second optical detection filter are each configured to filter out the same wavelengths of light so that substantially any light detected by the first optical detector and the second optical detector is light emitted from the optical emitter and passing through the fluid sample.