SU1675819A2 - Magnetically controlled commutation element - Google Patents

Description

(61) 1434386

(21) 4738473/10

(22) 09/18/89 (46) 09/07/91. Bul No. 33

(71) Omsk Scientific-Research Institute of Instrument Making (72) DSRR b6kon (53) 538.8.681.7.068 (088.8) (56) USSR Author's Certificate No. 1434386, cl. H 01 H 1/66, 1986.

Patent of Germany

No. 3716836, cl. G 02 B 6/24, published. 12/01/88.

(54) MAGNETIC CONTROLLED SWITCHING ELEMENT (57) The invention relates to automation and can be used in automatic control, monitoring, measurement and communication systems. The aim of the invention is to expand the functionality. The switching element contains a sealed container 1, the optical fibers 2 and 3 with ground ends. A ferromagnetic shutter 4 HS of a common form with a plate 7 is mounted in the housing of the console. A smaller portion of the shutter 4 is provided with a hole 8. 1 sludge.

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ABOUT

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The invention relates to automation, can be used in systems of automatic control, control, measurement and communication, is an improvement of the known switching element according to the author. St. No. 1434386.

The aim of the invention is to expand the functional possibilities by introducing an additional circuit for an electrical signal and additionally introducing one or more switched paths for light signals.

The drawing shows a magnetically controlled switching element that is switching for an electrical signal, closing the path for the first light signal and opening the path for the second light signal under the influence of an external magnetic field.

The switching element contains a sealed balloon 1, made of a solid dielectric, and light guides 2 and 3 with ground ends mounted in pairs fixed on one axis with a gap and one opposite to the other. A ferromagnetic shutter 4 is console-mounted in the housing, the protruding end of which serves as an output for connecting an external circuit. A smaller portion of the L-shaped shutter 4 is located in the gap between the ends of the additional light guides 3. A ferromagnetic plate 5 and a diamagnetic plate 6 are fixed at the opposite end of the cylinder 1. The protruding ends of the plates 5 and 6 play the role of the second and third terminals for electrical chains. A ferromagnetic plate 7 is welded to the L-shaped shutter 4, the free end of which is located above the plate 5 with a gap of 100–200 µm with overlapping and is in contact with the free end of the plate 6. A smaller portion of the shutter 4 is provided with a hole 8 which is located

but above the light guide 2. The hole gauge is equal to the outer diameter of the light guide or is 10–20% larger.

In the initial state of the shutter 4, the distance between the axis of the hole and the light guide 2 is 1.0-1.1 D, where D is the outer diameter of the light guide.

The element works as follows.

In the initial state, under the action of elastic forces, the plate 7 abuts against the plate 6, and the contacts of the elements 4 and 6 are closed,

The opaque part of the shutter 4 is located in the gap between the ends of the optical fibers 2 and blocks the path of the light flux between these optical fibers. Under the influence of an external magnetic field, the plate 7 is attracted to the plate b, with the contacts of elements 4 and 6 closed, the axis of the hole 8 coincides with the axis of the optical fibers 2. The path for the light flux between the optical fibers 2 opens. At the same time, the curtain 4 blocks the light flux between the optical fibers 3.

Claims (1)

The invention of the magnetic switching element according to the author. St. No. 1434386, which means that, in order to expand the functionality, an additional diamagnetic plate was inserted, mounted cantilever at the end of the sealed balloon above the ferromagnetic plate fixed on the shutter, and its free end was in contact with it, at the L-shaped shutter, the area located above the ends of the light guides has at least one hole, and the element is equipped with at least two additional light guides, which are installed similarly and parallel to the main light guides.