摘要:
A mount for supportably engaging an article. The mount includes a bulbous member that may include a convexly shaped surface area. The convexly shaped surface area may be supportively contactable with a first interconnect portion of a carrier member. An attachment member that is operatively associable with a device may be removably engageable with a second interconnect portion of the carrier member. The carrier member may be moved throughout a continuum of positions defined by the convexly curved surface area of the bulbous member. Additionally, the bulbous member may be supportably engaged by a variety of embodiments of support structures for supporting or mounting the mount.
摘要:
An AC inductor (1) includes a core (5), at least one permanent magnet for magnetically biasing the core (5), an inductor winding (8) on the core (5), and a circuitry which guides an alternating current which flows through the AC inductor (1) in such a way through the inductor winding (8) that, during each half-wave of the alternating current, the alternating current generates a magnetisation of the core (5) which is opposite to the magnetisation by the permanent magnet (6). This circuitry includes a commutator (13) which guides the alternating current flowing between two contacts (2, 3) of the AC inductor (1) through the same part of the inductor winding (8) with a same flow direction during each of the half-wave of the alternating current.
摘要:
The present invention provides a magnet (100), which comprises a body (101) having a first and a second section (103, 104), and a slide (108) arranged to be movable relative to the body (101) between a first and a second position. The slide (108) comprises a permanent magnet (109), and a first and a second pole piece (110, 111) that are attached to opposite magnetic pole surfaces of the permanent magnet (109). The first section (103) comprises a hole (106) that opens into a first cavity (107) of the body (101), the bottom of the first cavity (107) being delimited at least partly by the second section (104). The slide (108) is movably arranged in the hole (106) so that the second pole piece (111) is directed towards the bottom of the first cavity (107), wherein at the first position of the slide (108), magnetic flux generated by the permanent magnet (109) is short-circuited by the first section (103), and at the second position of the slide (108), magnetic flux generated by the permanent magnet (109) is directed through the first and the second section (103, 104).
摘要:
An EUV optical apparatus includes a number of adjustable mirrors (22x) on mirror bodies (120). Each mirror body is supported on an actuator (l00x) comprising a moving part (132, 134, 136) and a fixed casing part (128, 130). The actuator provides a resilient support (140, 142) for the mirror body so that it is tiltable with two degrees relative to the casing. An electromagnetic motor (166, 170-178) applies first part, under the influence of an applied motive force, the resilient mounting being arranged to provide a biasing force that resists said motive force. A magnetic coupling (102, 104a, 104b) is arranged between the moving and fixed parts so as to provide a counter-biasing force. The counter-biasing force partly opposes said biasing force and thereby reduces the motive force required to effect a given displacement. The actuator can thus be made with reduced size, weight and heat dissipation.
摘要:
A mount for supportably engaging an article. The mount includes a bulbous member that may include a convexly shaped surface area. The convexly shaped surface area may be supportively contactable with a first interconnect portion of a carrier member. An attachment member that is operatively associable with a device may be removably engageable with a second interconnect portion of the carrier member. The carrier member may be moved throughout a continuum of positions defined by the convexly curved surface area of the bulbous member. Additionally, the bulbous member may be supportably engaged by a variety of embodiments of support structures for supporting or mounting the mount.
摘要:
Numerous arrangements for permanent magnets are disclosed that can focus the flux produced by the magnets. Depending on the particular application in which the disclosed designs and techniques are used, efficiency and reliability may be increased by minimizing flux leakage, increasing peak flux density, and shaping the flux fields to improve the effective coercivity of the flux focusing permanent magnet arrangement when loaded, and to achieve customized voltage and current waveforms. The disclosed magnet assemblies may be incorporated into a machine, such as a motor / generator, having windings and may be disposed for movement relative to the windings. The magnet assembly may be mounted on a support formed of one or more ferromagnetic materials, such as a back iron The disclosed flux focusing magnet assemblies may be formed using a variety of manufacturing methods.