SU122342A1 - A device for solving a system of exponential equations, for example, in determining the most advantageous operating modes on machine tools. - Google Patents

Description

W.L.-,

to which the formulas are determined, which define our machine operation mode. The device solves formulas in the converted form:

lgl / pilgti + p, ++ p "

Each member of the last formula is modeled in the device by an electric multiplying unit, i.e., a potentiometer powered by a voltage proportional to Ig.v, -, and having a slider displaced proportionally to the value of P ;. Proportional Igx, - voltage is formed at the output of the second potentiometer, fed by alternating voltage of constant amplitude and having a slider installed on a logarithmic scale, digitized in units of xf. The voltage from this potentiometer is supplied to the input of the multiplying potentiometer, the setting of the slider is fixed but to a lamp voltmeter with a linear scale. The proportional PI IgXf voltages at the output of the multiplying block are summed up in a value that sequentially connects all multiplying blocks. The calculation results are measured with a logarithmic output voltmeter. For the simultaneous input of values into several devices solving a system of equations, transformers with several secondary windings are used.

The device is shown in the drawing.

Voltage modeling is performed using a potentiometer 1 as indicated by a lamp voltmeter V. The voltage removed from the secondary winding of the transformer Tp is rectified by valve B, the polarity of the rectified voltage is produced by switch I.

The exponentiation is performed as follows: to the ends of a and & potentiometer R2 is connected to a source of stabilized voltage and (contacts / and 2 are open, contacts 3 to 4 are closed). After that, the potentiometer slider Rz is set so that a voltmeter V connected to the terminals LА shows the value of Р; . To change the sign of the exponent, the polarity of the voltage between terminals L is changed using the HZ switch.

Multiplying the factors reduces to algebraic summation of the stresses. Since phase transitions can occur between individual voltages in the case of alternating current, which, when switched on sequentially, will give a geometric sum of voltages instead of algebraic ones, these voltages are rectified before the summation by rectifiers B (for example, DGT type germanium detectors ) and filtered by U-shaped RC filters.

Subject invention

A device for solving a system of indicative uraniums, for example, in determining the most advantageous operating modes on metal-cutting machine tools, containing a series of multiplication units built on potentiometers, the output voltages from which are summed by an electrical circuit that sequentially connects the corresponding multiplication units, differing from that, in order to eliminate the necessity of using logarithmic potentiometers in the instrument, it uses a measuring instrument with a logarithmic scale that is included in the circuit of each of the tentsio meters via a switch ..

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