摘要:
The invention relates to a cleaning machine (1) comprising a housing (10) and at least one hingeable element (20), as well as to the hingeable element (20) itself. The hingeable element (20) is detachably attachable to said housing via a hinge structure comprising at least two pairs of magnetizable or magnetic member surfaces (H1, E1; H2, E2). At least one surface in each pair exhibits a magnetic force for engagement with the other surface in said pair. A first member surface (E1; E2) in each of said pairs is supported by said hingeable element (20) and a second member surface (H1; H2) in each of said pairs is supported by said housing (10). When said hingeable element (20) is attached to said housing (10), said magnetic force is extending in a direction substantially in parallel with a magnetic centre axis (Am) extending between each first member surface (E1; E2). This provides a sufficient attachment force in the hinge structure both to allow the hingeable element (20) to stay attached to the housing during use, as well as to allow the hingeable element (20) to become detached easily from the housing (10), thus to function as a “break away”.
摘要:
An arrangement and a method for influencing and/or detecting magnetic particles in a region of action is disclosed, which arrangement comprises: selection means for generating a magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub-zone having a higher magnetic field strength are formed in the region of action, drive means for changing the position in space of the two sub-zones in the region of action by means of a magnetic drive field so that the magnetization of the magnetic particles changes locally, wherein the selection means comprise at least one permanent magnet comprising a high resistive permanent magnet material.
摘要:
The invention relates to a sliding mechanism and in particular to a sliding mechanism for an electronic device. The sliding mechanism comprises a first part and a second part, the first and second parts being slidably movable relative to one another between a first configuration and a second configuration; the first and second parts including respective first and second magnetic elements, the magnetic elements being arranged to attract one another to bias the first and second parts towards the first configuration.
摘要:
Ferromagnetic material of an elongated object, such as a fiber optic cable (12), is permanently magnetized in a manner that results in a substantially cylindrically symmetric radial external magnetic field around the object. The radial external magnetic field varies periodically along the length of the object. If the wavelength of the periodic variations is long compared to the width (diameter) of the object, the strength of the radial external magnetic field decreases approximately inversely with distance from the object for distances that are small compared to the wavelength. Magnetization of the ferromagnetic material is achieved by a magnetizer having pairs (10) of counter-rotating mirror-image magnets adjacent to an object that is moved longitudinally relative to the magnets. By virtue of the magnetization, buried objects, such as pipes and cables can be detected magnetically at substantial distances from the objects.
摘要:
A magnetic circuit includes a multi-pole magnet (8) mounted on a predetermined surface of a yoke and having magnetic poles formed in a direction perpendicular to the predetermined surface of the yoke (6). The multi-pole magnet is separated into two pieces (8a,8b), and a single-pole magnet (10) is interposed between the two pieces of the multi-pole magnet. Magnetic poles of the single-pole magnet are formed in a direction different from the direction in which those of the multi-pole magnet are formed.
摘要:
A reciprocating magnetic body (20) support structure (42) for a linear motor or a linear alternator. The body (20) comprises a cylindrical, metallic support sleeve (22) having a plurality of longitudinal slots (26) evenly spaced around the circumference of the sleeve (22). An equal number of magnet segments (40) is mounted to the sleeve (22) extending over at least a portion of the associated slot (26) and attaching to the wall (24) of the sleeve (22) on both sides of the associated slot (26). The longitudinal slots (26) preferably extend completely through the sleeve (22) from near one longitudinal end of the sleeve (22) to near an opposite longitudinal end of the sleeve (22). The sleeve (22) is preferably stainless steel or titanium, but should, regardless of metal, have a high resistivity, i.e., above 50 micro ohms per centimeter.
摘要:
Double pancake coils include a pair of pancake coils of different dimensions, and are wound from the same continuous length of superconducting wire. The double pancake coils are coaxially positioned and electrically interconnected along a longitudinal axis to provide a multi-coil superconducting magnetic coil assembly. Each of the double pancakes has at least one of its pancake coils electrically connected to at least another pancake coil of an adjacent double pancake coil having substantially the same outer dimension. The electrical connections between adjacent pancake coils are provided with relatively straight or "unbent" segments (81) of superconducting wire even through the inner and/or outer dimension profile of the superconducting magnetic coil assembly along its longitudinal axis varies.