Abstract: A dispersion spectrometer comprises a wavelength dispersive element located within a path of incoming radiant energy; and a first detector disposed to detect incoming radiant energy dispersed by the dispersive element, The spectrometer further comprises a second detector disposed to register the intensity of at least a portion of the un-dispersed incoming radiation and configured to generate a signal representative of the registered intensity, the first detector being adapted to have operational parameters in the form of integration time and/or sensitivity gain varied in response to the signal.

Abstract: A sample divider for granular material comprises a peripheral wall section and a centrally located sample spreading member which here is in the form of an upwardly facing cone. A first plurality of holes is distributed evenly around the peripheral wall and together serves as an outlet of a first discharge stage. A second plurality of holes is located in and evenly distributed around an inner wall section and together serves as an outlet of a second discharge stage. Each chute from a plurality of such chutes is associated with its own one of the plurality of holes and is angled to direct incident sample towards the associated hole.

Abstract: A method for liquid-liquid extraction comprises introducing a first liquid into a container (16) and introducing a second liquid into the container (16). The second liquid is substantially immiscible with the first liquid and a one of the first and second liquid contains a substance to be extracted and the other of the first and the second liquid exhibits a preferential affinity to the substance to be extracted. The method further comprises shaking the container (16), allowing the liquids to settle thereby establishing an interface between the liquids, and rotating the container (16) to move the interface over substantially the entire inner surface of the container (16). A device for implementing the method is also provided.

Abstract: An optical analyser comprises a light source having a plurality of emitters (4a . . . e) selectably energisable by means of control unit (12) and computer (10). A tilting filter arrangement (8) is also provided having a plurality of optical interference filters (20c) say. Each filter is simultaneously tiltable to vary a wavelength of incident light from associated emitter, (4c) say, transmitted there through and along an associated light path (16a . . . e), towards an analysing region (18).

Abstract: An optical analyzer comprises a plurality of independent analysis zones (18a;18b), each for receiving an associated different sample and an optical system (24) including a first light source (26) adapted to generate a first optical beam (B1) and an optical unit (30) adapted to direct said beam (B1) to illuminate simultaneously two or more of the plurality of the analysis zones (18a;18b). A second light source (26) is also provided as part of the optical system (24) and is adapted to generate a second optical beam (B2) to be directed by the optical unit (30) to illuminate simultaneously the same two or more of the plurality of analysis zones (18a;18b) simultaneously or sequentially illuminated by said first optical beam (B1).

Abstract: An optical analyser comprises a light source having a plurality of emitters 4a . . . e selectably energisable by means of control unit 12 and computer 10. A tilting filter arrangement 8 is also provided having a plurality of optical interference filters 20c say. Each filter is simultaneously tiltable to vary a wavelength of incident light from associated emitter, 4c say, transmitted there through and along an associated light path 16a . . . e, towards an analysing region 18.

Abstract: An optical blood analyte monitor (2) comprises a near infra-red light source and a complementary detection (6) means; a component analyser (12) having access to a chemometric model linking optical spectral features to a level of blood analyte of interest and configured to apply the model to signals received from the detection (6) means and a tilting filter arrangement (8) having a plurality of optical interference filters (20a . . . e;56a . . . d), each filter being tiltable to vary a wavelength of incident light from the source transmitted there through. The light source comprises a plurality of light emitters (4a . . . e) each being arranged to emit light along a different associated light-path (16a . . . e) in which is located an associated different one of the plurality of the interference filters (20a . . . e) and towards a same analysing region (18) at which a tissue volume (finger for example) containing a blood sample to be analysed is located in use.

Abstract: A device for irradiation of small particles, such as grains from cereals and like crops, for analysis of the quality of the particles, comprises a sample-feeding carrier (30), which has sample holders and is adapted to take up particle samples (2), which each comprise at least one particle, in the sample holders and transport the particle samples (2) to a place for irradiation (34). The device further comprises a radiating device (36) emitting electromagnetic radiation for irradiation of the particle samples (2), and radiation guides (22). The radiation guides (22) are attached on the sample-feeding carrier (30) for guiding the radiation emitted by the radiating device (36) to a particle sample (2) in a sample holder, when the particle sample (2) has been fed to the place for irradiation (34).

Abstract: A method for recording images of small particles to detect cracking includes feeding particle samples to a place for image recording, illumination a particle sample from at least two directions simultaneously, the illumination occurring with different light wavelengths for each direction, recording partial images of the illuminated particle in different channels, which are sensitive to different wavelengths, and comparing the different partial images to analyze the particle sample. Each partial image shows the particle sample illuminated from one direction by the channel recording only one of the different light wavelengths.

Abstract: In a bathtub lift for seniors and the handicapped comprising a scissor-type lifting mechanism whereby a seat plate is vertically adjustable relative to a floor stand, a back rest connected to the seat plate, a telescopic lifting device that is connected to the back rest as well as to the seat plate on one hand and supported on the floor stand on the other hand, and a drive unit to drive the lifting device, provision is made for the lifting device to comprise a driven gearwheel, which, together with a driving gearwheel that is connected to the drive unit forms a gear mechanism and is engageable with this driving gearwheel, wherein the two gearwheels are separable from one another by a pulling force acting upon the lifting device resulting from a body part of a bathing person getting trapped.

Abstract: A method and device for optical measuring of small particles for analysis of the quality of the particles. A sample-feeding carrier is adapted to take up particle samples in sample holders and transport the particle samples to a place for optical measurement. A mirror-supporting means follows the movement of the carrier and has mirrors matching the sample holders. A device illuminates a particle sample when positioned for optical measurement and a detector, which is sensitive to electromagnetic radiation, records a result of optical measurement of the illuminated particle sample. A mirror reflects the particle sample, so that a mirror image thereof stands essentially still seen from the detector, when a measurement is being recorded, owing to the fact that the mirror image of the particle sample falls on a center axis of the movement of the mirror-supporting means.

Abstract: A device for optical measuring of small particles for analysis of the quality of the particles comprises a sample-feeding carrier which is adapted to take up particle samples in sample holders and transport the particle samples to a place for optical measurement, a mirror-supporting means which follows the movement of the carrier and has mirrors matching the sample holders, a device for illuminating a particle sample when positioned for optical measurement and a detector, which is sensitive to electromagnetic radiation and records at least one result of an optical measurement of the illuminated particle sample. A mirror of the mirror-supporting means reflects the particle sample, so that a mirror image thereof stands essentially still seen from the detector, when a measurement is being recorded, owing to the fact that the mirror image of the particle sample falls on a center axis of the movement of the mirror-supporting means.

Abstract: A method for recording images of small particles to analyze the quality of the particles, especially to detect any cracking in the particles, comprises the steps of feeding particle samples which each comprise at least one particle, to a place for image recording, illuminating a particle sample from at least two directions simultaneously, the illumination occurring with different light wavelengths for each direction, recording an image of the illuminated particle sample with the aid of an image-recording means, which records partial images of the particle sample in different channels, which are sensitive to different wavelengths, and comparing the different partial images to analyze the particle sample. Each partial image shows the particle sample illuminated from one direction by the channel recording only one of the different light wavelengths.

Abstract: A luminescence measuring system comprises an apparatus for supplying samples located in separate test tubes. In the measuring chamber of a luminometer, the samples are in turn presented to a light detector, such as photomultiplier. Two mutually displaceable components, which are cup-shaped and fit into one another with the cup bottoms facing outwards, define the measuring chamber. The component shells are provided with holes which can be aligned by relative displacement of the components so as to admit the test tube into the luminometer and the measuring chamber and subsequently to discharge it therefrom under the action of gravity. The test tubes are conveyed to the luminometer by a sleeve-chain conveyor having a bottom with a through hole.

Abstract: An instrument adapted to make assessments in sensory evaluation comprises two wafers which are separated by spacers and are provided on their opposing faces with conductive patterns. Upon use, the instrument is connected to a computer which activates one conductor at a time on one side of the instrument and senses if one or more of the conductors on the other side of the instrument are activated, i.e. if a person is exerting a pressure, for example by a finger, at some point or other on the instrument. The special design of the conductive patterns makes it possible to convert the analog position of the pressure into a digital signal which is fed directly into the computer.