SU809233A1 - Multi-cycle function generator - Google Patents

Description

one

The invention relates to computing technology, namely to contactless functional converters.

A functional transducer is known, which comprises a hollow fixed magnetic core, an excitation winding and a measuring llj.

The disadvantage of this converter is that it does not have sufficiently high accuracy and reliability, since the presence of moving windings can lead to a violation of the functional integrity of the converter.

The closest to the present invention is a functional transducer containing a hollow stationary cylinder with two side covers, inside which the ferromagnet is rotating. I axis with a disc in the middle and with a single winding winding and measuring winding on it.

The disadvantage of such a device is that the reliability of the inverter's rabofs is not high enough due to the fact that during the winding of the windings there can be failures due to the violation of their mechanical integrity, as well as

that this device with a variable number of turns of the active part of the windings provides an implementation of a narrow class of functions.

5 The purpose of the invention is to increase the reliability of work and expand the functionality of the converter.

The goal is achieved by the fact that in the myopic function transducer the inner surface of the stationary cylinder is profiled, the movable ferromagnetic axis

15 is made with a screw thread and is covered from the outside by a movable disk of electrically conductive material, on the outer surfaces of the disk there are protrusions entering into the guide grooves of the cylinder, and the field windings and the measuring are made in the form of centered sections placed along the magnetic circuit.

The drawing shows a multi-turn functional transducer. It contains a hollow stationary cylinder 1, two wings 2, a ferromagnetic axis 3, a disk 4 with protrusions 5, grooves 6 of a stationary cylinder, windings

Claims (2)

30 excitation 7 and measuring 8. The converter operates as follows. When the ferromagnetic axis 3 is made, the disk 4 moves along it in one direction or another, and the gap between the stationary cylinder 1 and the ferromagnetic axis 3 changes according to the laws, corresponding to the required function, therefore the magnetic circuit is changing along both lines from the disk 4 When a 1fe belt current flows through the excitation winding 7 with the number of turns WQ, a working magnetic flux is created which, intersecting the turns of the measuring winding 8, induces partial emf in them. Euj-jwa3jVu, the number of turns in the sections of the measuring winding 7} F the magnitude of the flows created by the sections of the excitation winding and crossing the measuring winding; W 1CX / B01) COj IeWBGi, where j is imaginary value; circular frequency} magnetic conductivities for flux Φ and Φ, determined mainly by the magnetic conductivity of the part of the annular gap between the stationary cylinder 1 and ferro-magnetic axis 3. If the inner surface is shaped according to the required function, then the magnetic conductivities at screen coordinate X are determined d) dx; GI К J f (x} dx., О f, Taking into account both expressions, we have at the output of the measuring winding 7 EM "U -EUI-Jt lB BN ai rGi) -ju) lB VBWu1lx) Thus, the form of this function is Bq K ( x) is determined by the profile of the inner surface of the stationary cylinder 1, where Y (x) is a reproducible functional dependence. The technical and economic efficiency of the invention is expressed in increasing the reliability of the converter due to the absence of movable windings, which results in an increase in the reliability and trouble-free operation time of the entire control and regulation system in which the proposed device is used. Preliminary tests of the experimental prototype of the functional converter showed that the time of trouble-free operation is increased by 4-5 times in comparison with the prototype. Claims of the invention: A multi-turn functional pre-former comprising a hollow stationary cylinder with two side covers, inside of which there is a movable ferromagnetic axis with a disk, excitation windings and measuring, characterized in that, in order to increase reliability, the inner surface of the hollow stationary cylinder is shaped, side covers are attached concentrated winding sections, excitation and measuring, the disk is made of electrically conductive material and is installed with possibly Step along the axis, the outer surface of the disk is provided with protrusions that are located in the direction of the dich grooves made in the inner surface of a hollow stationary cylinder. Sources of information taken into account in the examination 1. USSR author's certificate number 395856, cl. G About G 7/26, 1973. 2. USSR author's certificate 346725, cl. G 06 G 7/26, 1972 (prototype).