Fluid diagnostic devices and methods of using the same

摘要

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 λD 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 λD 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.

主权项

1. A diagnostic apparatus comprising a measurement head, a translating calibration element, and a calibration element actuator, wherein:
the measurement head comprises a diagnostic light source, a light sensor, and a measurement head body; the diagnostic light source operates at a diagnostic wavelength λD; 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 target fluid passageway is open on opposite sides of the diagnostic light path along the target fluid passageway; the translating calibration element is at least partially transparent to light at the diagnostic wavelength λD; the calibration element actuator is structurally configured to move the translating calibration element into and out of the target fluid passageway; and 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.