SU556454A1 - Multiplying-dividing device - Google Patents

Description

GUIDELINK, because of which the accuracy of the operation is significant and the device is structurally more complicated.

The closest technical solution to the proposed invention is Miozh}; - a separating device containing a differential DC amplifier and a variable conductivity element made on an electrochemical cell included in one of the arms of the resistive bridge 3.

However, this device has low accuracy in the low-frequency input signal range and low reliability due to structural complexity.

The purpose of the invention is to increase the accuracy of operation of the flash-dividing device in the infra-low frequency range of input signals and reliability.

This is achieved by introducing additional differential amplifiers of direct current and additional resistive bridges with an electrochemical cell in the shoulder into the proposed multiplying device; resistive bridges are combined in pairs by a common resistive arm, the inputs of each differential amplifier, of the cristal current are connected to the first terminals of the electrochemical cells. the corresponding pair of resistive bridges, the second pins of the electrochemical cells, the first diagonal pins of the resistive bridges and the output of the general About the resistive arm of each pair of resistive bridges are connected to a zero potential, the second diagonal pins of the resistive bridges, except the second diagonal output of the output resistive bridge, are connected to the corresponding inputs of the device, the main and even outputs of the additional differential amplifiers of the direct current electrodes of the electrochemical cells of their own and subsequent odd additional resistive bridges, the outputs of odd additional differential The potential amplifiers are connected to the control electrodes of the electrochemical cells of their own and subsequent even additional resistive bridges, and the output of the subsequent additional differential DC amplifier is connected to the control electrode of the electrochemical cell of the main resistive bridge, with the control electrode of the electrochemical cell of the output resistive bridge and the second diagonal output resistive bridge output associated with the output of the device.

The drawing shows a circuit diagram of the proposed multiplier-dividing device.

The device contains a differential DC amplifier, an element with controlled conductivity, made on an electrochemical cell 2 connected to one shoulder of a resistive bridge 3, the other arms of which are formed by resistors 4, 5, 6, additional differential amplifiers of direct current 7, 8, additional resistive bridges 9 with corresponding electrolytic cells Yu, 1Гв shoulders (12, 13 - device inputs, 14 - device outputs).

The device works as follows. When connected to device inputs 12

corresponding sources of input signals Xi (, 2, ..., p), and to the device inputs 13 of the corresponding sources of signals Y, the balance of resistive bridges 3, 9 changes. The voltage unbalance At / at the output of any DC differential amplifier 1, 7 or 8 can be written as

W,, and ,, - and, „(1)

where Cr is the gain of the corresponding differential DC amplifier 1, 7 or 8;

and, - control and maintenance at its exit;

Uio and and a are the corresponding potentials at the outputs of the electrochemical cells 10 and li.

As a result, at the outputs of all differential amplifiers of constant current 1, 7, 8, control voltages Up ,, ..., Up., ..., Up, which change

transfer coefficients corresponding

electrochemical cells 2, 10, 11 as long as

until

W, W, ... W1 ... W „0. (2)

taking into account the expression (1)

(3)

and ,, and, and ,.

Taking into account the expression (1), the expression (3) 40 can be represented as

(four)

a, K ,, (Up) X, brK ,, (Up ,,) Y ,,

where (Up) and Kii {Upi-i) are the transfer coefficients of the corresponding electric cells 10, AND;

fli and bj are their constructive constants. The found condition for the operation of this circuit is the identity of the current-voltage characteristics of the electrochemical cells 2, 10, 11.

Having the system (4) relative to Yn Z, where Z is the output value of the device, taken from outputs 14, we have:

„H1. . .and;. . ... .xl ... xn

  AH, b VVV

Oi. ..Of. . . g. ..h; ..

, (five)

 l

{-one

but,

where L & „

i-i

65 - constructive device constant.

Claims (3)

1. Lomanovich V.I., Strizhevsky I.V. Chemotronic devices. M., “Energie, 1968, p. . 2.Maltsev A.I. and others. The use of cybernetics methods in information and measurement technology. Tbilisi, ed. TF VNIIM, 1973, p. 357-367. 3. Gvaramadze L. L., Shorygin A. P. Comparison of characteristics of analog memory elements made on the basis of electrochemical converters. - “Instruments and control systems, 1973, No. 6, p. 21-25, fig. five. Ge