Aquionics, Inc.

Paul Ropic

Oliver Lawal

Thomas L Haslett

A diagnostic apparatus includes a measurement head, a translating calibration element, and a calibration element actuator. The measurement head includes a diagnostic light source, a light sensor, and a measurement head body. The diagnostic light source operates at a diagnostic wavelength &#x3bb;and the measurement head body supports the diagnostic light source and the light sensor in a spaced apart relationship across a target fluid passageway to define a diagnostic light path extending from the diagnostic light source to the light sensor. The translating calibration element is partially transparent to light at the diagnostic wavelength &#x3bb;and the calibration element actuator is structurally configured to move the translating calibration element into and out of the target fluid passageway. A size and geometry of the translating calibration element is such that the translating calibration element occupies a substantial entirety of the diagnostic light path when moved into the target fluid passageway.

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Walton, KY, United States of America

Paul Ropic