SU1742995A1 - Displacement-to-code converter - Google Patents

Abstract

The invention relates to the field of automation and computing. The purpose of these is to increase speed, resolution and reduce the effect of destabilizing factors on the converter. The converter contains the reference voltage generator 1, the first 2 and second 3 blocks of the functional digital-analog conversion, the sine-cosine rotary transformer (SCWT) 4, the reversible counter 9, the phase-sensitive rectifier 7, PN 48 ,. voltage transducer to frequency 6. The goal is achieved by introducing into the transducer the following type with a changing direction from the pulsating to power SCRLT of additional local feedback. 1-2-4-6-7-8-9-2, 9-3, 3-4, 4-5-6, 1-7. 1 il. v Ё VJ 4 N) Yu Yu (L

Description

The invention relates to automation and computing, in particular, to converters of mechanical movements into a digital code, and can be used to create information and automated systems with digital control.

The aim of the invention is to increase the speed of the converter, reduce the influence of destabilizing factors and increase the resolution,

This goal is achieved in that a follower type converter with a varying direction of the axis of the pulsating power field of SCRT additionally introduces local feedback, which allows, besides increasing the resolution, increase the speed and reduce the influence of destabilizing factors.

The drawing shows the functional diagram of the Converter.

The converter contains a reference voltage generator 1 (GON), a first block 2 of a functional digital-analog conversion (FTSAP), a second block 3 of functional conversion (FTSAP), a sine-cosine rotary transformer 4, a third block 5 of a functional digital-analog converter (FCP), an adder 6, phase-sensitive rectifier 7 (PPF). voltage-to-frequency converter 8 (FSP), reversible counter 9.

The Converter operates as follows.

When the device is turned on, all blocks (except block 4) are supplied with a supply voltage, while the generator 1 produces an alternating voltage signal Umsin (an) at the output, and arbitrary codes are set at the outputs of counter 9, respectively, at the same output group another group of exits. The Umsin () signal from the output of the generator 1 is fed to the FTsAP blocks, where it is modulated as cos 1 and si n with a response. The inputs of the ACS 4 receive analog signals of the Umsin () sin (wt) and UmCos (Vi) sln (al) types, respectively, and the first Umsin (a - tpi) sin (al) and the second Umcos signal ( ) sln (wt). The second signal is fed to the input of block 5 of the FCCD, where it is modulated as a function of tg tyi, i.e. At the output of block 5, a signal of the form Umcos (a - 1) tg tyi is formed. which is summed with the first output signal of SSCT 4 in the adder 6. At the output of the adder 6, a signal of the form

Umsln (ftrt) (a - i) + cos (a) tg $,

(D

which is rectified with the help of FWR 7 and enters the input of the FSP 8, where, depending on

the sign of the incoming signal is converted into frequency on the corresponding depending on the sign of the FNC 8 outputs, respectively, changing the state of the reversible counter 9 and the value of the ifa codes. and

 will change until the first output of SCPT 4 and the output of block 5 of the FTSAP is that the voltage amplitudes are not minimal, i.e. code (1 +) a, In this case, the system will come to the state

balance The FCCP block 5 is also an amplifying link and increases the sensitivity of the entire system, which in turn leads to a reduction in conversion time, i.e. increase speed. In addition, the contour of the additional (internal) feedback changes the transfer function W and brings it to the form

W

Kv

+

1 + Sq 1 -f KB

where KB is the contour factor of the additional feedback consisting of blocks 5-9;

D is the value of the destabilizing parameter.

From expression (2) it follows that an increase in the transmission coefficient of block 5 reduces the effect of destabilizing factors.

In addition, an increase in the resolution of the converter is provided by the introduction of an additional reversible counter 9.

Claims (1)

Invention Formula A motion converter in a code containing a sine-cosine rotating transformer, a reference voltage generator, the output of which is connected to the analog inputs of the first and second blocks, a functional analog-to-digital converter, the outputs of which are connected to the first and second inputs of the sinus-cosine rotating transformer, the output of the reference voltage generator is connected to one input a phase-sensitive rectifier, an output accumulator, one input of which is connected to which is connected to the input transducer — the first output of the sine-cosine lays the voltage into the frequency, the outputs of which are transforming the mountain, the second output is connected to the inputs of the reversing counter — which is connected to the analog input, the outputs of which are connected-5 of the third block of the functional digital-analogue with the digital inputs of the first and secondologic converters, the output of which of the blocks of the functional digital-analogue is connected to other the input of the adder, of the transformation, whose course is connected to another input, is that, in order to increase the speed-sensitive rectifier, the other, resolution and decrease-10 group of outputs of the reversible counter, the effect of destabilizing factors It is dinene with digital inputs of the third block. The third block of functional digital-analogue digital-analogue conversion and transformation is introduced into it.