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.

A downhole fluid analysis system includes an optical sensor comprising, which includes a light source configured to emit light comprising a plurality of wavelengths, a light detector, and an optical tip through which at least a portion of the light travels and returns to the detector, wherein the incident angle of the light causes total internal reflection within the optical tip. The system further includes a piezoelectric helm resonator that generates a resonance response in response to an applied current, and an electromagnetic spectroscopy sensor positioned symmetrically with respect to the piezoelectric helm resonator in at least one direction. The light may be reflected in the optical tip at one or more reflection points, and each reflection point may generate an evanescent wave in a medium surrounding the optical tip. The light may be internally reflected in the optical tip at a plurality of reflection points.

An in situ near infrared sensing unit includes a housing allowing the sensing unit to be inserted in a variety of media. A transparent window is formed in the sidewall of the housing. A sensing element is mounted inside the housing. The sensing element is configured to emit near infrared light provided from a light source external to the housing, and the sensing element is configured to collect near infrared light transmitted through the transparent window. A mirror is mounted in the housing at an angle with respect to the transparent window and opposite the sensing element. The angle allows the mirror to reflect the near infrared light, emitted by the sensing element, through the transparent window.

One aspect of the present disclosure discloses a probe, including a probe body having a center axis defining a proximal end and a distal end and including an aperture in the distal end; a window affixed in the aperture, wherein the window is substantially optically transparent; and a flange adjoining the proximal end of the probe body, the flange including a sealing surface and a sealing edge, wherein the flange separates an in-process portion of the probe from an ex-process portion of the probe, the in-process portion including at least the probe body, the sealing surface and the sealing edge, where at least the in-process portion of the probe consists essentially of an austenitic stainless steel material. Further aspects include a computer product configured to execute a method employing the probe.

A fluoride sensor includes an aluminum layer situated on a distal end face of an optical fiber. A light source directs light into the optical fiber at a proximal end and reflected light from the aluminum layer at the distal end face is directed by the fiber to a detector. A rate of change of a detector signal is processed to produce an estimate of a concentration of fluoride.

A system for measuring the blood loss comprises a measuring device that determines a hemoglobin concentration of fluid within a container utilizing a light source and a light detector. The container receives blood and other fluids from a patient during a medical procedure. Light from the light source is passed through the blood and other fluids in the container and is detected by the light detector. Based upon a magnitude of light detected, a hemoglobin concentration of the fluid in the container can be determined. A volume-measuring device determines the volume of blood and fluid in the container. Knowing the hemoglobin concentration and volume of fluid in the container, the volume of patient blood loss in the container can be determined. The blood loss measuring device in combination with infusion systems maintains a real-blood volume status so that proper infusion of blood, crystalloid and/or colloid solutions occurs.

A downhole fluid properties optical analysis probe (1) to analyze at least one property of a multiphase flow mixture (100) flowing in a hydrocarbon well (51) has an elongated cylindrical body shape. It comprises an optical tip (5) at one end of the elongated cylindrical body arranged to be in contact with the multiphase flow mixture (100). It further comprises an optical link (6) adapted for a connection with an electronics module (11) at another end of the elongated cylindrical body arranged to be separated from the multiphase flow mixture (100). The optical tip (5) is coupled to the optical link (6) through a removable and watertight coupling (7). The removable and watertight coupling comprises a first portion (9a) of a protective tube (9) resistant to downhole conditions, said first portion (9a) enclosing the optical link (6) and comprising at least one first ring bulge (22) close to a coupling interface (10), and a second portion (9b) of the protective tube (9) partially enclosing the optical tip (5) such as to let a distal end of the optical tip (5) in contact with the multiphase flow mixture (100), said second portion (9b) comprising at least one second ring bulge (23) close to the coupling interface (10). It further comprises a coupling tube (24) surrounding facing ends of the first portion (9a) and the second portion (9b), said coupling tube (24) being adjusted in size to fit in between said first and second ring bulges (22, 23), and a coupling and protecting sheath (25) enclosing said first ring bulge (22), coupling tube (24) and second ring bulge (23) in a watertight manner.

A hydrogen sensor for detecting hydrogen in a fluid in physical contact with the sensor comprises a sensing element, a first protection layer, provided to prevent contact of the sensing element with a sensor poisoning gas in the fluid, wherein the first protection layer comprises PMMA. Further, a hydrogen detection system, an electrical device having such a system and a method for producing a sensor are provided.

A multi-fibre optical probe for spectroscopically analysing high concentration mediums (i.e. about 40 wt % or higher solid particulates), an extruder comprising a multi-fibre optical probe, use of said multi-fibre optical probe are provided. Methods of generating a predictive model, determining the value of a parameter of a solid particulate dispersion and manufacturing a solid particulate dispersion are also provided.

A sensor for monitoring the quality of oil in mechanical machinery is provided. The sensor includes a portion that is sealed from the oil which contains electric circuitry to process signals received from the sensing elements. Another portion of the sensor is exposed to the oil and contains one or more sensing elements to sense one or more properties of the oil. The sensed properties may include electrical properties, temperature properties and/or optical properties.