SU1246114A1 - Pneumatic multiplying-dividing device - Google Patents

Abstract

This invention relates to pneumatic computing devices. The purpose of the invention is to improve the accuracy in performing multiplication, division, as well as multiplication and division simultaneously. Multiplying-dividing device. contains a reference element, two four-way adders, two throttles and switching lines. New to the device is the introduction to the design of two four-input adders, which in combination with the corresponding throttles function as sources of stable flow. 1 il. with

Description

The invention relates to a pneumatic computing technique, namely to pneumatic multiplying-dividing devices.

The aim of the invention is to improve the accuracy of calculations.

The drawing shows a schematic diagram of the device.

The device contains a two-siphon comparison element 1 and two amplifiers 2 and 3, each of which consists of an adder 2 (3) and a controllable divider based on a constant throttle 2 (3.2), variable throttle 2 Szd) - flap. The positive camera of the reference element is connected to the first input by channel P ,. The first plus chamber of the adder 2 is connected to the second input channel, and the output via the constant choke .2. associated with its second plus camera and minus camera RD of reference element 1.

The first plus chamber of the adder 3 is connected to the third input channel Pj, and the output through a constant choke 3j is connected to its second positive chamber and the output channel of the PBMX device. The device works as follows.

. In accordance with the scheme including tiKu from the condition of the balance of forces on the membrane blocks of elements 1,2 and 3, we have in the steady state

| (P, + P, F, P,

I rz В))

IP P

,,

Where

to,

01 + / 3,

"9

, Constantly 2 (3)

and alternating 2H (3H) chokes.

After simple transformations we get

about (,., (with j), / 3, () is the conductivity COOT-

(2) (3)

Under the conditions yi oi and provided with the selection of the geometrical data of the chokes, we have

& OX

 R.

(four)

Since this device automatically ensures equality

/ 3.

RI R.

0

s

0

five

0

five

0

0

five

This device operates at any ratio, with proper selection of the design parameters of the constant and variable chokes.

Compared to the known, the proposed device provides infinite resistance at all inputs, thereby providing higher accuracy of calculations (with limited power or with long lines of communication between signal sources and a computing device. Compared with the basic object, as received T the PF 1.18 serial device. The Start system. The proposed device provides for the expansion of the range of input signal variation in the region of large values of the P, / P ratio (serially functioning a device requires a regex

Completion conditions p-O- g

Claims (1)

Invention Formula A pneumatic multiplying device containing a comparison element, the positive chamber of which is connected to the first input channel, and two amplifiers, each of which consists of a comparison membrane element and a controllable divider, whose control input is connected with the output of the comparison element, and the output is from the first positive chamber of the membrane element of the comparison, and the inputs of the amplifiers are connected respectively to the second and third input channels, and the output to the negative camera of the comparison element and the output channel of the device In order to improve accuracy, in each amplifier, the comparison membrane element is connected according to the adder circuit, the second plus chamber of which is connected to the output of this amplifier, and the output through the control adapter. with the output of this amplifier. 3 V i. РЗ V RVi ,.