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US 2011/0013182 A1Published application
Reference cell
AssigneeStarna Scientific Limited
InventorsKeith Hulme, John Hammond
Life of this patent
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AssigneeStarna Scientific Limited
InventorsKeith Hulme, John Hammond
Estimating the term…
Reference cell (8) for use with a fibre optic probe (1) comprising a base wall (11), upstanding walls (12) each having an optical window (13, 15), and a top wall (14) having a further optical window (16) adapted to allow light to pass to and from a fibre optic probe. The base wall (11) comprises a reflector (19) which reflects incident light from the fibre optic probe back to said probe (1). The top wall (14) has an attachment for receiving an emitting and a receiving end of a fibre optic probe (1). The cell (8) allows use of standard fibre optic probe (1) with other optical equipment when the path length and the probe optical characteristics require validation to international standards. The calibration of the probe (1) is analogous to calibration of laboratory spectrophotometers and can therefore be validated. The device (8) enables probes (1) to be used for applications where precision and accuracy are essential.
A reference cell for use with a fibre optic probe (1), characterised in that said cell comprises a base wall (11), first and second opposed upstanding walls (12) and further walls each having an optical window (13, 15), which further walls are perpendicular to the said opposed upstanding walls and a top wall (14), which top wall (14) is provided with a further optical window (16), which further optical window (16) is adapted to permit transmission of light to and from a fibre optic probe (1), which walls (11, 12, 14) define a chamber (10), wherein the chamber is provided with a reference material.
Dependencies are inferred from the claim text.