The present disclosure discloses an optochemical sensor for determining a measurand correlating with a concentration of an analyte in a measuring fluid, comprising: a housing having an immersion region configured for immersing in the measuring fluid; a removable cap having a sensor spot, the removable cap removably arranged at the immersion region of the housing, wherein the sensor spot is disposed on a circumferential face; a radiation source disposed in the housing for radiating excitation radiation into the removable cap, wherein a deflection module is disposed in the removable cap as to deflect excitation radiation radiated into the removable cap; a radiation receiver disposed in the housing for receiving received radiation emitted by the sensor spot; and a sensor circuit disposed in the housing and configured to control the radiation source, receive signals of the radiation receiver, and generate output signals based on the signals of the radiation receiver.

The present invention allows a sample urine to enter an entry hole formed on a shell and to flow through a flow pathway. A part of the sample urine remains in a groove of the flow pathway as collected urine. A measuring module in the shell includes a first side and a second side. The first side includes a light emitting unit and a light sensing unit. The second side includes a lens. The lens is mounted in the groove. The light emitting unit generates a detection beam. The detection beam passes the lens, the collected urine, a reflective mirror, the lens again, and into the light sensing unit. The light sensing unit receives the detection beam and generates a sensing signal. The processing unit generates a detection result signal according to the sensing signal, and a display unit immediately displays a test result of the sample urine.

A sensor for determining a liquid type, includes: a plano-convex lens; a lens holder configured to support the plano-convex lens via an edge of the lens; an outputting optical fiber that abuts against a plane surface of the plano-convex lens to output light; a light-receiving optical fiber that abuts against the plane surface of the plano-convex lens to receive light; a light-emitting unit connected to the outputting optical fiber; and a light amount measuring unit connected to the light-receiving optical fiber to measure a light amount. The outputting optical fiber is provided so that an end face of the outputting optical fiber is disposed on the edge of the plano-convex lens, and preferably, a central axis thereof at the end face thereof passes through the plane surface of the plano-convex lens.

The present disclosure relates to methods and systems for assessing the quality of a meat product. In certain embodiments, the present disclosure provides a method of assessing quality of a meat product, the method comprising receiving data representative of light emitted from the meat product upon application of incident light to the meat product, analysing the data to determine one or more parameters indicative of quality of the meat product, and assessing the quality of the meat product on the basis of the one or more parameters.

The invention concerns method and an apparatus for analyzing the quality and quantity of bubbles or droplets of a dispersed phase in a construction material. The method may be used on construction materials before or during curing of the material, while in a non-solid state with the dispersed phase being entrapped therein. The inventive analyzing includes the steps of: applying a first side of an at least partially transparent plate in contact with a sample of said construction material to make a surface of said sample visible through said transparent plate; illuminating said surface of said sample through said plate from an opposite second side of said plate with at least one light source; providing a photosensitive sensor on said second side of said plate for receiving light reflected from said sample through said transparent plate, receiving from said photosensitive sensor electrical signals corresponding to said received reflected light and rendering from said electrical signals a visual representation of said surface of said sample using an imaging device; analyzing said visual representation with a computer system, by identifying bubbles or droplets of said dispersed phase from the surface of the sample by a spatial illumination encoding of the sample; and by determining the size and location of identified bubbles or droplets of said dispersed phase.

Finally, an indication of the quality of said construction material is computed, based on the size and distribution of the identified bubbles or droplets of said dispersed phase in said sample.

Provided is a urea solution sensor that can accurately measure a concentration of urea. The ammonia concentration sensor (1) includes: a light source (10) that emits measurement light toward a measurement subject, the measurement light including near-infrared light; a light reception unit (20) that receives transmitted light or reflected light from the measurement subject; and an analysis unit (30) that analyzes a concentration of urea contained in the measurement subject based on a spectrum of light which has been received by the light reception unit (20).

According to an embodiment of the disclosure, a device for measuring a turbidity of a solution containing fine particles comprises a laser module emitting a laser beam of a predetermined wavelength band, a coupler outputting the laser beam along a first laser path and a second laser path divided from each other, a probe outputting the laser beam output along the first laser path to a container containing the solution, a light receiving element receiving, through the first laser path, the laser beam reflected or scattered by the fine particles in the solution and detecting the received laser beam, and a controller calculating the turbidity based on a strength of the laser beam detected by the light receiving element.

Disposable, pre-sterilized, and pre-calibrated, pre-validated sensor components are provided. The sensor components interact with a sensor system having disposable fluid conduit or bioreactor bag and a reusable sensor assembly. The components can include an optical bench or inset optical component or module designed to be integrated within the disposable fluid conduit or bioreactor bag, which provides an optical light path through the conduit or bag. The sensors systems are designed to store sensor-specific information, such as calibration and production information, in a non-volatile memory chip on the disposable fluid conduit or bag and on the reusable sensor assembly. Methods for calibrating the sensor and for determining a target property of an unknown fluid are also disclosed. The devices, systems and methods relating to the sensor are suitable for and can be outfitted for turbidity sensing.

A measuring system automatically determines and/or monitors quality of a dairy product. The measuring system includes a housing for a container containing the dairy product, a viscosity measuring device, and a control unit. The viscosity measuring device includes a magnetic first body, an electromagnetic drive, and a detection system that detects displacement of the magnetic first body. The electromagnetic drive includes a plurality of individually controllable coils in a stack. The control unit is configured to individually energize the coils in a predetermined pattern in such a way that the magnetic first body is displaced. The magnetic first body is able to be readily pulled up, even in viscous liquids, but can also be pulled down in a controlled manner so that the viscosity can be measured more accurately.

A device for monitoring a bioreactor is configured for in-situ analysis, e.g., by NIR, without the need for withdrawing a sample into a sample cell or into an ex-situ arrangement. The device can be inserted into a port of the bioreactor and provides a sample detection region defined by an optical element such as a lens and a photodetector. The electrical signal obtained from a photodetector that is part of the device can be directed to an analyzer via a detachable electrical connection.