A calibrating-light module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The calibrating-light module includes a calibrating module housing, a light beam receiving portion connected to a first end of the calibrating module housing, a calibrating light portion connected to a side of the calibrating module housing wherein the side is transverse to the first end, and an optic fiber portion connected to a second end of the calibrating module housing wherein the calibrating module housing, the light beam receiving portion and the optic fiber portion are aligned with an optical path and the calibrating light portion is spaced from and transverse to the optical path.

A measuring arrangement for determining a physical process variable, a state variable or a property of the measuring medium, in particular a concentration of one or more components contained in the measuring medium, wherein the measuring arrangement comprises at least one measuring cell having a measuring path and a measuring sensor, wherein the measuring cell comprises a gamma-sterilizable data memory having at least one data set that is specific to a memory cell, and a method for using the measuring arrangement.

A container (1) has a measuring-cell housing (5) that protrudes into the container interior (2). The measuring-cell housing (5) has a measuring gap (6) bounded by two opposed spaced-apart lateral surfaces (8, 9), and a connecting surface (10) connects the lateral surfaces (8, 9). Each lateral surface (8, 9) has an optical window (11, 12). A first optical fiber (15, 15) is arranged before the first window (11) and a second optical fiber (17, 17) is arranged before the second window (12). Receiving channels (14, 16, 18) are arranged before the windows (11, 12, 13) and subsequently can be fit with the optical fibers (15, 15, 17, 17, 19) from the outside. The measuring-cell housing (5) having the windows (11, 12, 13) and the receiving channels (14, 16, 18) is connected fixedly to the wall (3) of the container interior (2).

Systems and methods are used to couple an optical sampling probe to a port in a single-use bioreactor bag for in-process monitoring. A combination of re-useable and disposable components maintain precision while reducing costs. A disposable barb with an integral window, received by the port of the reaction vessel, is coupled to a re-useable optic component with a focusing lens. A separate focus alignment tool is used to set the lens position to a precise focal point before placement of the optic component into the barb. The fixture includes a window to simulate the window in a barb component, a target with a known spectral signature, and a probe head coupled to a spectral analyzer. The axial position of the lens is adjusted with respect to the spacer component to maximize the spectral signature from a sample target, whereupon the spacer component is bonded to the lens mount.

The present disclosure relates to a sensor cap for an optochemical sensor for determining or monitoring at least one analyte present in a medium having a substantially cylindrical plug-in component and a sleeve-shaped outer component. The plug-in component has an optical component with a convex-shaped surface region for optimal flow, and the optical component at least partially consists of a material transparent to measuring radiation. On the surface region of the optical component is an analyte-sensitive matrix having at least one functional layer. The plug-in component and the sleeve-shaped component are designed such that the connecting region coming into contact with the medium is between the plug-in component and the sleeve-shaped outer component in the edge region of the optical component or is at a radial distance from the edge region of the optical component, and is sealed, without a gap, facing the medium.

A replaceable cuvette assembly for use in an optical absorbance measurement system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The replaceable cuvette assembly includes a cuvette substrate and a cuvette module fixedly connected to the cuvette substrate wherein the cuvette substrate is a support for securing the cuvette assembly within the optical absorbance measurement system. The cuvette module has a sample inlet port, a sample outlet port, an electronic chip assembly, a sample receiving chamber that fluidly communicates with the sample inlet port and the sample outlet port, a first cuvette window, and a second cuvette window forming a portion of the sample receiving chamber. The first cuvette window and the second cuvette window are aligned with each other defining a cuvette optical path length between the first cuvette window and the second cuvette window and disposed within an optical path of the optical absorbance measurement system.

The invention relates to a counting chamber for a microscope, adjustable in height. The method measures a cell count at two different chamber heights and deduces the concentration of particles without an exact calibration of the absolute height, as the height difference gives a measurement of the missing volume and therefore an estimate of the particle concentration.

A light-emitting module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The light-emitting module includes an LED light source capable of emitting light wherein the light is directed thereby defining an optical path and a plurality of optical components. The plurality of optical components includes a collimating lens, a first optical diffuser, a circular polarizer, and a focusing lens wherein the plurality of optical components is disposed within the optical path of the light from the LED light source

A calibrating-light module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The calibrating-light module includes a calibrating module housing, a light beam receiving portion connected to a first end of the calibrating module housing, a calibrating light portion connected to a side of the calibrating module housing wherein the side is transverse to the first end, and an optic fiber portion connected to a second end of the calibrating module housing wherein the calibrating module housing, the light beam receiving portion and the optic fiber portion are aligned with an optical path and the calibrating light portion is spaced from and transverse to the optical path.

An optical component group for use in a spectrometer module of a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The optical component group includes a light dispersing element and an achromatic lens assembly disposed between the light dispersing element and a light entrance port of the spectrometer module where the achromatic lens assembly is thermo-compensating permitting thermal expansion and contraction of the achromatic lens assembly in a linear direction where the linear directions is also transverse to a light beam from the light entrance port through the achromatic lens assembly and to the light dispersing element and back through the achromatic lens assembly.