Abstract:
An apparatus, method, and sample vessel for recombining a sample fluid. The sample fluid is received in a sample vessel. Sample parameters are recreated in the sample vessel. The sample fluid is agitated within the sample vessel. Optical measurements of the sample fluid are performed within the sample vessel utilizing one or more optical sensors. A determination is made whether recombination is complete in response to the optical measurements of the sample fluid performed by the one or more optical sensors.
Abstract:
The method is a method of photometric in vitro determination of the content of an analyte in a sample of whole blood. The blood sample is transferred from an in vivo locality directly to the sample container of a sampling device. The sample container comprises a measuring chamber wherein there is provided a transparent body the radiation transmission characteristics of which vary with the content of analyte in the environment of the body. The transparent body is equilibrated with the sample and thereafter the measuring chamber is deformed in a controlled manner while the portion of the measuring chamber located in the radiation transmission path is drained for blood sample. The analyte content is determined on the basis of detection of the radiation transmitted from the radiation source through the deformed measuring chamber and the transparent body and to the radiation detector. A sampling device and an analyzer for use in photometric in vitro determination of the content of an analyte in a blood sample is also described.
Abstract:
Measuring the amount of individual gases in drilling fluids in real-time may be performed with optical computing devices that are calibrated in real-time or periodically with gas analysis devices to provide more accurate gas content measurements. In some instances, one or more drilling or completion parameters may be altered in response thereto the concentration or change in concentration of individual gases in drilling fluids.
Abstract:
Die Erfindung betrifft ein Verfahren zum Abtasten des Unterlaufstrahls eines Hydrozyklons, insbesondere zur Regelung desselben durch Erfassen der Strahlveränderung am Grobkornaustrag durch optische Mittel. Erfindungsgemäß erfolgt eine Abbildung des Strahles auf einer optoelektronischen Bildaufnahmeeinrichtung, insbesondere einer Kamera mittels einer Durchlicht-Beleuchtungseinrichtung, wobei hierdurch Veränderungen der optischen Transparenz des Strahls und/oder ein sich ändernder Strahlwinkel ermittelt werden.
Abstract:
Methods and systems for performing pressure-volume-temperature testing on fluids include: a portable environmental control chamber 14, a first pressure vessel 12A disposed inside the portable environmental control chamber, a second pressure vessel 12B disposed inside the portable environmental control chamber, the second pressure vessel in hydraulic communication with the first pressure vessel, a viscometer 18 configured to measure the viscosity of fluids flowing between the first pressure vessel and the second pressure vessel, and an optics system 22 configured to measure optical properties of fluids flowing between the first pressure vessel and the second pressure vessel.
Abstract:
Visual analysis of urine samples is carried out with the use of a slide consisting of three layers containing an enclosed viewing chamber which receives a urine sample deposited by pipette into an opening on the outer layer of the slide. From the inlet opening the sample enters an inlet chamber in the middle layer and passes through a capillary passageway into the viewing chamber where it is inspected for particles and sediments.
Abstract:
The method according to the invention is a method of photometric in vitro determination of the content of oxygen in a blood sample. The blood sample is transferred directly from an in vivo locality to an at least partially transparent sample container of a sampling device. The sample container has a measuring chamber wherein a luminophor is provided, whereof the luminescence is quenched in the presence of oxygen. The oxygen content is determined on the basis of the radiation detected by the radiation detector. A sampling device and a system for photometric in vitro determination of oxygen in a blood sample is also described.
Abstract:
The method is a method of photometric in vitro determination of a blood gas parameter in a blood sample. The blood sample is transferred directly from an in vivo locality to an at least partially transparent sample container, whereafter the connection between the sample containing sample container and the blood circulation is broken. Subsequently the sample container with its content of blood sample is brought into optical communication with an optical system comprising a radiation source and a radiation detector interacting therewith, preferably by placing the sample container in a sample container system in an analyzer. The blood gas parameter is determined on the basis of the radiation detected by the radiation detector. A system for photometric in vitro determination of a blood gas parameter in a blood sample is also described.
Abstract:
L'invention concerne un procédé d'analyse d'un changement d'état physique d'une matière non purement gazeuse, dans lequel : - on maintient au moins une partie de surface libre de la matière sous un rayonnement électromagnétique cohérent; - on fait varier dans le temps la température de la matière; - on réalise au cours de la variation de température une pluralité de mesures d'au moins une grandeur d'au moins une partie de rayonnement électromagnétique diffusé par la matière, les différentes mesures de la pluralité de mesures étant réalisées à des instants différents et pour des températures déterminées de la matière, et; - on déduit de la pluralité de mesures une valeur représentative d'une vitesse de variation -notamment d'une vitesse de fluctuation- de chaque grandeur mesurée et du changement d'état physique de la matière. L'invention s'étend également à un dispositif (1) d'analyse d'un changement d'état physique d'une matière (3) non purement gazeuse.