Abstract:
A method and a machine for balancing vehicle wheels with weights (18), the method comprising stages of: using a video camera (5, 6, 206) to frame a portion of a surface of a hub (101) of a wheel on which a weight (18) is to be applied, locating, in images of the hub (101) taken by the camera (5, 6, 206), at least a balancing plane (E1 , E2) which is perpendicular to a rotation axis (A) of the wheel, piloting at least a pick-up device (8, 9, 209) such as to direct the at least a pick-up device (8, 9, 209) onto a point (P1 , P2) of the hub (101) belonging to the balancing plane (E1 , E2), detecting, by means of the pick-up device (8, 9, 209) characteristic geometric parameters of the hub (101) at the balancing plane (E1 , E2), measuring an imbalance of the wheel, calculating, by means of an electronic calculator (4, 204) an entity of at least a weight (18) to be applied to the hub (101) at the balancing plane (E1 , E2), and also calculating an angular position (T1 , T2) of the weight (18) in the balancing plane (E1 , E2).
Abstract:
Apparatus for analysing a liquid sample (194) comprises beam generating means (1) for generating electromagnetic radiation, detector means (8) for detecting electromagnetic radiation from the beam generating means after the radiation has interacted with the sample, and sample retaining means (10) for releasably retaining sample in the path of the beam. The sample retaining means comprises a hydrophobic surface (for example, a coating on a plate 118) on which the sample is, in use, supported. There is also disclosed a method of performing photometric or spectrophotometric analysis of a liquid sample by sandwiching samples between two opposed hydrophobic support surfaces, passing a beam of electromagnetic radiation through one of the surfaces and then through the sample, and analysing the beam after it has passed through the sample.
Abstract:
L'invention concerne un radiomètre pour déterminer le contenu biochimique d'une feuille végétale ou autre. Ce dispositif comprend : - des moyens d'émission pour émettre de la lumière vers l'échantillon, - des moyens de détection pour capter la lumière provenant dudit échantillon, les moyens de détection comprenant au moins un photodétecteur dit de transmittance pour capter le faisceau lumineux traversant l'échantillon, - un capteur de position pour déterminer l'épaisseur de l'échantillon, et - une unité de traitement pour déterminer les caractéristiques physico-chimiques dudit échantillon à partir de signaux de transmittance provenant des moyens de détection et d'une valeur de l'épaisseur de l'échantillon obtenue à partir du capteur de position.
Abstract:
A method and a machine for balancing vehicle wheels with weights (18), the method comprising stages of: using a video camera (5, 6, 206) to frame a portion of a surface of a hub (101) of a wheel on which a weight (18) is to be applied, locating, in images of the hub (101) taken by the camera (5, 6, 206), at least a balancing plane (E1, E2) which is perpendicular to a rotation axis (A) of the wheel, piloting at least a pick-up device (8, 9, 209) such as to direct the at least a pick-up device (8, 9, 209) onto a point (P1, P2) of the hub (101) belonging to the balancing plane (E1, E2), detecting, by means of the pick-up device (8, 9, 209) characteristic geometric parameters of the hub (101) at the balancing plane (E1, E2), measuring an imbalance of the wheel, calculating, by means of an electronic calculator (4, 204) an entity of at least a weight (18) to be applied to the hub (101) at the balancing plane (E1, E2), and also calculating an angular position (T1, T2) of the weight (18) in the balancing plane (E1, E2).
Abstract:
Die Erfindung betrifft eine Vorrichtung für die Messung physiologischer Parameter von in einem extrakoporalen Kreislauf gefördertem Blut. Zwei Lichtquellen (1a, 1b) strahlen Licht unterschiedlicher Wellenlänge in einen kugelförmigen Hohlraum (3) mit einer reflektierenden inneren Oberfläche (3a) ab. Eine Lichtsensoreinrichtung (2) empfängt einen Teil des sich in dem Hohlraum (3) ausbreitenden Lichtes. In einen zweiten Hohlraum (4) ist ein Schlauchabschnitt des extrakorporalen Kreislaufs so einlegbar ist, daß das von den Lichtquellen abgestrahlte Licht (La, Lb) auf die Grenzfläche zwischen dem Blut und einer Innenwand des Schlauches auftrifft. Durch Reflektion und/oder Transmission gelangt das Licht zumindest teilweise in den Hohlraum (3) zurück.
Abstract:
L'invention concerne un radiomètre pour déterminer le contenu biochimique d'une feuille végétale ou autre. Ce dispositif comprend : - des moyens d'émission pour émettre de la lumière vers l'échantillon, - des moyens de détection pour capter la lumière provenant dudit échantillon, les moyens de détection comprenant au moins un photodétecteur dit de transmittance pour capter le faisceau lumineux traversant l'échantillon, - un photodétecteur dit de réflectance pour capter le faisceau lumineux réfléchi par l'échantillon, et - une unité de traitement pour recevoir des signaux provenant des photodétecteurs et pour déterminer le contenu biochimique à partir de signaux de réflectance et de transmittance provenant des photodétecteurs.
Abstract:
A portable device for the quality control of vegetal products comprising a power supply (7) intended for powering a circular crown of lighting lamps (41) at the centre of which there is arranged the receiving objective of a spectrometer (45) provided with means (431) adapted for resting on the product to be checked, said spectrometer (45) being associated to a microprocessor (11) which provides the measurement data on display means (12); according to the invention, the lamps (41) are permanently powered, and in stand-by, at a reduced voltage (70), lower than the nominal voltage (71) delivered by the power supply (7), and instantaneously at the nominal voltage (71 supplied by the power supply (7) through a power circuit (8) whose activation is commanded and controlled by the microprocessor (11) in response to an activation signal generated by a button (10).
Abstract:
Method and apparatus (100) for determining the viability of eggs (113) primarily designed for eggs of a developed stage, e. g. 16 to 18 days for poultry eggs (approximately 50% into the incubation period), where the animal is too opaque to use transmission of light through the egg for heart pulse detection. At least one light source (107, 108, 109, 110) causes infrared (IR) light to impinge upon the egg. A part of the light, preferably light which has been passed into the air sac (120) and impinged upon the allantois (121), is reflected to an IR detector (111). Viability is determined on the basis of ascertaining whether the received light has a variation due to the action of the heart or variation due to movement of the chick. The invention further relates to a method of vaccinating eggs in ovo, to a method of sorting eggs by gender, to a common body for holding a plurality of IR emitters, and to a computer program.
Abstract:
The invention relates to a fluorometer having a partly transparent mirror (27) through which excitation light is directed to the sample and via which emitted light from the sample is reflected. Thus a high sensitivity and, furthermore, as homogenous a measurement sensitivity distribution as possible within the vessel are achieved. Measuring can be carried out from either above or below. The invention is applicable for use especially when the fluorometer has simultaneously a plurality of samples.