Abstract:
A method and apparatus for automatically selecting test types for an analytical meter system (10) based on the insertion into the meter of a test element (30). The test element can be an analytical element, formed by a test strip with control fluid applied thereto; or a standard element, or a standard strip exhibiting known optical properties. By inserting the test element into the analytical meter system, optical properties are measured and the existence of relationships between the measurements are ascertained.
Abstract:
A light emitting diode (LED) 20 is mounted on the surface of a header 42 and a photodiode 41 is mounted on an orthogonal extension 43 of the header such that some of the light emitted by the LED 20 falls directly on the photodiode without having undergone reflection from other surfaces. The photodiode is used to sense the output intensity of the LED. The direct optical path between LED and sensor means that the photodiode output is insensitive to movement between the assembly and its surroundings, which movement can give rise to errors in prior art arrangements involving reflection from a further surface. The assembly may be used in an exhaust gas sensor in conjunction with a further photodiode.
Abstract:
A light source apparatus capable of adapting to multiple types of observation light for intended purposes is provided. The light source apparatus 10 includes a main unit 40, light source modules 20A, 20B, and 20C attachable to and detachable from the main unit 40, and storage mediums 24A, 24B, and 24C storing characteristic information of the light source modules 20A, 20B, and 20C. The light source modules each include at least one light source 21A, 21B, and 21C and a light connection part 23A, 23B, and 23C to be optically connected to the main unit 40. The main unit includes: entrance parts 41A, 41B, and 41C to be optically connected to light connection parts 23A, 23B, and 23C; a light combining unit 43 to combine light entering the entrance parts 41A, 41B, and 41C; an exit part 45 to cause the combined light to exit; and an exit light characteristic deriving unit 48 to derive characteristic information of achievable exit light.
Abstract:
The invention relates to a method of controlling a product analysis spectrometer, the method comprising steps consisting in: acquiring a measurement (LFL, TPL) representative of the operation of a light source (LS), determining as a function of the measurement a value of supply current (LCx) of the light source, and/or a value of duration of integration (ITy) of photosensitive cells (y) of a sensor (OPS), which are disposed on a path of a light beam (LB) emitted by the light source and having interacted with a product to be analyzed, and if the value of duration of integration and/or of supply current lies between threshold values, providing to the light source a supply current corresponding to the determined value of supply current, adjusting the duration of integration of a photosensitive cell to the determined value of duration of integration, and acquiring measurements of luminous intensity (MSy) which are provided by the sensor, making it possible to form a spectrum.
Abstract:
L'invention concerne un système de détection comportant : - un émetteur (1) comprenant une diode électroluminescente (DEL) apte à émettre un signal lumineux et une source d'alimentation (A) agencée pour appliquer une tension constante (V DEL ) à la diode électroluminescente (DEL), - un récepteur (2) destiné à capter le signal lumineux émis par la diode électroluminescente et agencé pour générer un premier signal d'entrée (S in1 ) représentatif du signal lumineux détecté, - des moyens de mesure du courant (I DEL ) traversant la diode électroluminescente (DEL) et destinés à générer un second signal d'entrée (S in2 ) représentatif du courant (I DEL ) mesuré, - des moyens de traitement (3) connectés au récepteur (2) pour fournir un signal de sortie (S out ) en fonction du premier signal d'entrée (S in1 ) et du second signal d'entrée (S in2 ).
Abstract:
The invention proposes an apparatus (110) for determining at least one optical property of a sample (112). The apparatus (110) comprises a tunable excitation light source (114; 410) for applying excitation light (122) to the sample (112). The apparatus (110) also comprises a detector (128, 130; 312) for detecting detection light (132, 136; 314) coming from the sample (112). The excitation light source (114; 410) comprises a light-emitting diode array (114) which is at least partially in the form of a monolithic light-emitting diode array (114). The monolithic light-emitting diode array (114) comprises at least three light-emitting diodes (426) each with a different emission spectrum.
Abstract:
A device, system and method for photometric detection of coagulation in whole blood. The present invention is easy to implement and operate. Furthermore, the present invention has the advantage of being considered to fulfill the desired standard of using photometry for measuring blood coagulation. Also, a photometric coagulation test device for whole blood specimens according to the present invention provides medical accuracy to the home user and, at the same time, is simple to construct. The present invention is also useful for detecting and determining blood agglutination, for example as the results of a serological reaction with an antibody.