Abstract: A linear motor includes a stator and a rotor that is axially moveable relative to the stator, wherein the rotor is permanently excited by a rotor magnetic field which is periodic with a first period length (PP) along its longitudinal axis, wherein the linear motor comprises a position detection device, which is designed to detect a position of the rotor in relation to the stator, wherein the position detection device comprises at least a first magnetic field sensor (S1) and a second magnetic field sensor (S2), wherein the first magnetic field sensor (S1) and the second magnetic field sensor (S2) are arranged on the stator spaced apart from each other by a first distance (d1) along the longitudinal axis of the rotor, wherein the first distance (d1) is at least approximately an odd multiple of one-sixth of the first period length (PP).

Abstract: A linear motor includes a stator and a rotor that is axially moveable relative to the stator, wherein the rotor is permanently excited by a rotor magnetic field which is periodic with a first period length (PP) along its longitudinal axis, wherein the linear motor comprises a position detection device, which is designed to detect a position of the rotor in relation to the stator, wherein the position detection device comprises at least a first magnetic field sensor (S1) and a second magnetic field sensor (S2), wherein the first magnetic field sensor (S1) and the second magnetic field sensor (S2) are arranged on the stator spaced apart from each other by a first distance (d1) along the longitudinal axis of the rotor, wherein the first distance (d1) is at least approximately an odd multiple of one-sixth of the first period length (PP).

Abstract: A system for remotely monitoring a process or equipment comprises: processing means for receiving one or more sensed outputs representative of one or more environmental conditions and/or process parameters and/or equipment conditions; interface means configurable by a user for selecting a subset of the one or more sensed outputs and for defining at least one output data string dependent on the one or more sensed outputs; and communication means for transmitting the at least one output data string.

Abstract: A motion rate sensor for detecting the rate of movement of an article, comprising: a housing relative to which, in use, the article moves, a detection unit disposed within the housing, the detection unit including a conversion device adapted for generating detector signals caused by the motion of the article, and processing circuitry adapted for receiving said detector signals and outputting motion signals indicative of the rate of movement of the article. In embodiments, the detector signals are caused by variations in optical or light energy, in magnetic fields or radiation intensity. The variations may be caused by variations on the surface in the article, for example a random or repetitive pattern. An apparatus and method for calibrating the sensor are also disclosed, as are a system and method for determining the speed of motion of an article using the sensor.

Abstract: A motion rate sensor for detecting the rate of movement of an article, comprising: a housing relative to which, in use, the article moves, a detection unit disposed within the housing, the detection unit including a conversion device adapted for generating detector signals caused by the motion of the article, and processing circuitry adapted for receiving said detector signals and outputting motion signals indicative of the rate of movement of the article. In embodiments, the detector signals are caused by variations in optical or light energy, in magnetic fields or radiation intensity. The variations may be caused by variations on the surface in the article, for example a random or repetitive pattern. An apparatus and method for calibrating the sensor are also disclosed, as are a system and method for determining the speed of motion of an article using the sensor.

Abstract: A motion rate sensor for detecting the rate of movement of an article, comprising: a housing relative to which, in use, the article moves, a detection unit disposed within the housing, the detection unit including a conversion device adapted for generating detector signals caused by the motion of the article, and processing circuitry adapted for receiving said detector signals and outputting motion signals indicative of the rate of movement of the article. In embodiments, the detector signals are caused by variations in optical or light energy, in magnetic fields or radiation intensity. The variations may be caused by variations on the surface in the article, for example a random or repetitive pattern. An apparatus and method for calibrating the sensor are also disclosed, as are a system and method for determining the speed of motion of an article using the sensor.

Abstract: A method of treating hollow anatomical structures, for example varicose veins. The method comprises: providing an elongate radiation applicator, the elongate applicator including an emitter, the emitter being coupled to a source of microwave radiation and being adapted to emit said radiation; introducing the applicator into a hollow anatomical structure, the hollow anatomical structure including a section of target tissue; traversing the applicator past the section of target tissue while said emitter emits microwave radiation of a predetermined intensity into said section. Techniques are used (markings on the coaxial cable in conjunction with an audible tone) so that the user makes the traversal at a predetermined rate so that uniform application of the radiation to the tissue, and effective occlusion, occurs. An applicator for performing the treatment is also disclosed.