Abstract:
Proximity switches are disclosed that preferably are provided in a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10g with no contact discontinuity.
Abstract:
A magnetically-triggered proximity switch includes a cylindrical switch body and a first magnet non-movably secured within the switch body. The proximity switch also includes a pivoting cross arm. A second magnet may be movably disposed within the switch body, and the second magnet may be rigidly connected to the cross arm. When a magnetic target is not located within a specified range of the second magnet, the first magnet attracts the second magnet, thereby pivoting the cross arm into a first switch position and closing a first circuit. However, when the magnetic target is located within the specified range, the magnetic attraction between the target and the second magnet is greater than between the second magnet and the first magnet. The second magnet is displaced towards the target away from the first magnet, thereby pivoting the cross arm into a second switch position.
Abstract:
Eine magnetische Schaltvorrichtung ist mit einer ersten Schalteinrichtung, die mit einem beweglichen mit einer Kontaktbrücke verbundenen Magneten versehen, und mit einer zweiten Schalteinrichtung, die mit einem Magneten versehen ist, der mit einem beweglichen Schaltglied verbunden ist, versehen. Die Magnete weisen auf den einander zugekehrten Stirnflächen die gleiche Polarität auf. Zwischen den Magneten ist eine Trennplatte aus ferromagnetischem Material positioniert, die kleiner ist als die einander zugekehrten Stirnflächen der Magnete.
Abstract:
Sistema de control para la activación de un circuito eléctrico con una pluralidad de elementos activadores (9, 9’20, 24) conectados a un circuito eléctrico para activar el circuito eléctrico en respuesta a un código de activación compuesto por al menos una señal de activación recibida dichos elementos activadores (9, 9’20, 24), y al menos un medio inductor (7, 26) para aplicar una señal de activación a cada elemento activador (9, 9’20, 24, estando el medio inductor (7, 26) y los elementos activadores (9,9’20, 24) dispuestos detrás de una pared de separación (3, 27) permeable al campo magnético. El medio inductor (7, 26) comprende al menos un imán permanente (8, 8’, 8’’) que emite un campo magnético, y es desplazable hacia una posición de activación cercana y enfrentada a cada elemento activador (9, 9’20,24) de forma que cuando el medio inductor (7, 26) se encuentra en la posición de activación, el campo magnético que constituye la señal de activación, es recibido por el elemento activador (9, 9’20, 24).
Abstract:
The invention relates to a magnetically effective switching element for changing, in a targeted manner, the resultant effective permeability in defined regions of magnetic circuits and magnetically effective arrangements for the topical provision of energy. The magnetic switching element (1) according to the invention can be used in a magnetic working circuit. The topical provision of electrical energy is made possible by means of such a magnetic working circuit, wherein the magnetic switching element (1) is switchable without contact and in a precise manner by an externally generated magnetic field.
Abstract:
A magnetic switch includes a carrier (1) and a switch (2) provided in the carrier, the switch (2) including two units (21,22) provided separately in the different parts of the carrier, the two units attracted each other to contact by the attracting force occurred by their self magnetic material so as to make the circuit conduct.
Abstract:
A magnetic field based mechanical apparatus is disclosed. The apparatus is based on coupled attracting or opposing magnets in conjunction with the insertion or removal of a magnetic field modifier. In the preferred embodiment, two repelling magnets are drawn together with the insertion of a magnetic field modifier. The field modifier may be another magnet having an opposing pole. Removal of the field modifier returns the forces to their original states. This oscillating motion may be driven with a low energy and/or small power supply. The resulting motion of the opposing magnets can drive mechanical system such as a linear, gear, ratchet, or reciprocating drive.
Abstract:
A balanced magnetically-actuated proximity switch assembly for use in a monitoring system includes a switch assembly and an actuating assembly. The switch assembly has a plurality of magnetic switches with respective magnetic directionalities. The actuating assembly is movable relative to the switch assembly and has a plurality of magnets. Each one of the magnets produces a magnetic field corresponding to the magnetic directionality of a respective one of the magnetic switches.