SU531017A1 - Transducer to voltage - Google Patents

Description

one

The invention relates to contactless converters and can be used in devices of information-measuring equipment for the movement of movement in a voltage,

A movement to voltage converter, an alternating current electrical machine, is known, to the mutually perpendicular stator windings of which two identical square voltages are supplied, and the rotor winding is connected to a resistor 1,

However, the known device does not have sufficient reliability.

The closest in technical terms to the described device is an electromechanical transducer of angular displacements, which contains a moving mechanism, the cam surface which is connected to one end of the lever, the O-shaped ferromagnetic core, on the extreme rods of which the windings are located, the other end of the lever describes hypocycloid whose coordinate in the rectangular system is defined as X

2

 COS vf, since dI a; the displacements of the oagellitic and with / shechel sixes go to i; 4 2.

However, such a device ;; A sufficiently reliable 1O and iiG permits the main lecture ;; g (adjustable pz gizse lapr: - ;;;.:: ;;;;: current.

The goal was invented; 1 - fishing 11; very reliable device operation; i getting adjustable in phase ;; led ;; h; and: h / bbixoAjioro tension.

This goal is achieved by introducing a second lever, a resistor, an indicator element, and an additional O-shaped ferro 1app1-: so-called core with excitation exciters into the proposed device. Measuring OOMOTKII are placed on the upper rods of ferromagnetic heart podpchov, which are directly and via a resistor connected to the indicator indicator; oentum Odi} the end of the second is connected to noBep, -;

Claims (1)

A schematic diagram of the proposed device is shown in the drawing. The displacement to voltage converter contains a cam 1, whose profile surface 2 is a sinusoid bounded by a single period. The movable levers 3 are located with respect to the cam axis at an angle of 90, are rigidly connected with the movable measuring windings 4 and rest on the profile surface of the cam. On the extreme rods of the O-formed ferromagnetic cores 5, excitation windings 6 are placed, having an equal number of turns, connected in pairs in series and oppositely. Measuring windings 4 are placed on top of their core rods, the load circuit of which consists of a resistor 7 and a retaining element 8. The device works as follows. When turning Cam 1 at an angle L, windings 4 moving to the ends of the levers 3 move L neck parallel to the axis a cam, one - in proportion to Sin with a friend - proportional to COS (A, When one of the excitation windings is supplied with voltage U and the other - with voltage j and, t, e, equal to quadrature voltages, e, e. windings 4 are also in quadrature adaptations and vary according to the law of Lt-cervical movement of levers 3, Considering this, the expression for edc s, induced in windings 4, CAN BE written as t ,,, 4, where Е- | (- is the initial E. s., windings 4. Since in the measuring circuit formed by windings 4, resistor 7 and indicator element 8, the specified e.d.c. is added, the output e.d.c is equal to Eb, x × H. Thus, when feeding quadrature voltages, output} ae, d. It has a constant value and, depending on the angle of rotation of the cam, can vary its phase from 0 to 360. Since the measuring windings are connected to the post-load load, the current in the circuit of the indicator element also varies in phase from 0 to 360 °. Thus, this device, due to the introduction of new elements and the connections between them, is distinguished by higher reliability and provides the possibility of obtaining an output voltage controlled in phase and magnitude. Claims of Invention A displacement transducer to a voltage comprising a moving mechanism, the cam surface of which is connected to one end of the first lever. An O-shaped ferromagnetic core, on the extreme rods of which the field windings are placed, and on the top one a measuring winding, characterized in that, in order to increase the reliability of the device, a second lever, a resistor, an indicator element and an additional O-shaped ferromagnetic are inserted into it. a core with field windings and a measuring winding; measuring windings at one end directly, and the other through a resistor connected to the 1-switch element; one end of the second lever is connected to the cam surface of the movable mechanism, the other ends of the levers are connected respectively to the measuring windings of the ferromagnetic cores. Sources of information taken into account in the examination: 1, Khrushchev B, B, Electric micromachines, Energie, 1969, p. 261. 2, USSR Author's Certificate No. 147250, class G-.08 C 9/00 of 08.05, 1961 (prototype).