DD226069A1 - INDUCTIVE OPTICAL ENGINE WITHOUT AUXILIARY POWER - Google Patents

Abstract

The invention relates to an arrangement for information acquisition mechanical position changes with binaerem character without auxiliary energy needs. Use finds the invention in the fields of technology, where position information must be reported or processed by means of light control technology and / or electronics. The essence of the invention consists in the detection of the switching position information by means of inductive-optical encoder, which consists of a magnetic and electrical circuit and the drive system. By changing the magnetic field, a voltage is induced in a coil, which generates a light pulse by means of a diode.

Description

Berlin, 25. 6. 1984 EV 43/83 Wr / He

Title of the invention

Inductive-optical encoder without auxiliary power

field of use the invention

The use of the invention is advantageous in the fields of technology, where by means of light control technology u./o, electronics binary information due to mechanical state changes must be reported or processed, for. 3. in electrical energy systems.

Characteristic of the known technical solutions

A variety of optical encoders are known which can detect mechanical state changes by means of light-guiding elements. In principle, the light barrier principle is used, whereby a light beam has to be directed to the information acquisition location, is influenced there and then has to be returned again. (3RD / 0S 2107992; DDR / WP 133872; 3RD / CS 2320433).

The optical encoders use two aligned optical fiber ends similar to the principle of the reed contact. (3RD / 0S 2341848; BRD / OS 2841140; BRD / AS 2531398; 8R0 / 0S

2810853).

Position sensors are also known which detect the mechanical displacement of an object and convert it into an electrical signal, wherein the amount of displacement of a movable member is measured by means of a non-contact mechanical-electrical conversion mechanism. A position sensor is provided which records the displacement of an object or a working device by means of a movable member. The movable member, when displaced, leads via a coupling member to the deflection or bending of a candle, which on one side consists of a magnetically soft, amorphous metal part. This magnetically soft part is wrapped with an electric coil. The voltage change occurring when the object is displaced is detected by means of an electrical processing circuit (DE-OS 3133033).

In another known position sensor, a member projecting outwardly and receiving a displacement of an object moves a permanent magnet against the force of a spring. Parallel to der.Permanentmagneten is located on a magnetically soft part of a coil which emits an electrical signal to a processing circuit in the event of displacement of the object and thus displacement of the permanent magnet (DE-OS 3133048), Such position sensors require to generate the electrical signal additional auxiliary power and a high technical effort.

Object of the invention

It is the object of the invention to detect the binary information about a switching position change of switching device with simple means, without using additional power, with the saving of a fiber optic cable and Diffizielen Oustagearbeiten

Explanation of the essence of the invention

The invention has for its object to provide an inductive-optical encoder, which detects the information about a mechanical switching position change of switching devices and converts into an optical signal.

The object is achieved in that the inductive-optical encoder is connected via a mechanical device with the electrical switching device in combination. The inductive-optical encoder consists of a core device on which a permanent magnet and a coil are arranged. The "kinematics of the electrical switching device causes a change in position in the magnetic circuit, thereby inducing a voltage in the coil which feeds a light emitting diode be used.

embodiment

Figure 1 illustrates the structure of the inventive arrangement of the inductive-optical encoder. It consists of the drive system I ₁ 2 _S 3, the magnetic circuit 2, 4, 5, 6 and the light emitting diode. 3

Along the closed iron core 5, a permanent magnet 4 and an electrical coil 5 with the terminals 14 and 15 are arranged.

The closed iron core 5 has a hinged armature 2, which is rod-shaped extended on one side, at this extension is a return spring 3, which is firmly locked. An electric switching device, 1, whose switching position is to be detected, is fastened with a mechanical pivoting device 15 which, in the event of a position change, leads to the deflection of the hinged armature 2 against the force of the return spring 3. If the electrical switching device 1 changes its position again, the hinged armature 2 is abruptly displaced by the return spring 3 into its starting position. This leads to a rapid change over time of the coil 6 penetrating magnetic flux, whereby an induction voltage to the coil 6 is formed, which can be tapped at the terminals 14, 15. The induced voltage feeds via a free-wheeling diode 7 to a light-emitting diode 8 and the signal can be transmitted with optical 9; 10 or electrical means 12; 13 are provided for further processing.

Claims (1)

invention claim Without auxiliary power, inductive-optical encoder for detecting the switching position information of electrical switching devices using a core device, on which a permanent magnet and a coil are arranged, characterized in that the core device (5) with a switching position change by a threshold device (16) of the switching device ( 1) deflectable hinged armature (2) is provided, wherein on a one-sided extension of the hinged armature (2) a return spring (3) is fixed and that the hinged armature (2), the permanent magnet (4) and the coil (6) form a magnetic circuit and the terminals "(14) and (15) of the coil (6) feed the voltage induced by the magnetic flux change to a light emitting diode (3). For this