| CPC G01N 21/01 (2013.01) [G02B 6/36 (2013.01); G01N 2201/066 (2013.01); G01N 2201/08 (2013.01)] | 12 Claims |
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1. An optical measuring device configured for being connected in a flow path, said optical measuring device comprising:
a first flow path connector and a second flow path connector spaced from the first flow path connector;
at least two flow cell parts provided in a stacked arrangement along a flow direction in between the first and second flow path connectors such that a flow in a flow path in which the optical measuring device can be arranged will flow through the first flow path connector, the at least two flow cell parts, and through the second flow path connector in the flow direction, wherein the at least two flow cell parts are directly in contact with each other in the stacked configuration; and
at least one releasable connection device arranged for releasably fluidically connecting the at least two flow cell parts to each other along the flow direction along the flow path in between the first and second flow path connectors, wherein the at least two flow cell parts each comprise a fixedly mounted light transmitting device and a fixedly mounted light receiving device,
wherein an optical path of fixed length is provided between a light transmitting end of the light transmitting device and a light receiving end of the light receiving device, wherein said optical path is substantially transverse to the flow path,
wherein said light transmitting device is configured to be connected to a light source and said light receiving device is configured to be connected to a detector such that said optical path is configured to be provided in a flow which will be transferred through the optical measuring device when it is connected to a flow path, and
wherein the at least two flow cell parts have at least two different optical path lengths.
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