SU148540A1 - Function simulator - Google Patents

Description

Devices are known for simulating the functions described by a power series consisting of a reference voltage source, voltage dividers, rectifiers, amplifiers, and an emf sensor. Hopla.

The proposed device of a similar purpose differs from the known ones in that, to simplify and increase its speed, it is used as a functional element for the operation of sequential raising of the degree of emf sensor. The hall is made with several excitation windings of magnetic flux, the number of which is one less than the exponent of the highest term of the power series.

The functional diagram of the described device is shown in the drawing.

The device models the functions that can be represented by a power series.

(i) (p) aa + +,.

The operation of raising the parameter p to the power up to the fifth inclusive is carried out with the help of only one sensor / Hall, located in the throttle gap, having four windings D, // /// and / VWinding / and sensor) are fed with a common current sinco, and P. The rest of the windings are powered by multiples from frequencies. The multiplicity is chosen in such a way that the alternating magnetic fields acting in the throttle gap do not cause emf. Hall with the same frequencies, which allows you to simply filter the emf. the necessary frequencies with the help of selective amplifiers 2ii, 2iii. 2iv, 2v. So emf EX, proportional to the third term of the row, will have two components .x1 - / 1 - / 21 / 1z1fig. H1 sinco p2 (1-cos2u)),

0 5 /

/ Ci Av

No. 148540-2 where R is the Hall constant;

KH - Permanent drossel.

The voltage of the second harmonic is amplified by the amplifier 2jj, rectified by the rectifier Sn and through the potentiometer 4c, where the constant coefficient a of the third member is recruited, and the switch Sjj setting the polarity is applied to the i5 adder and the winding // Drossel. Thus, emf Hall acquires two more components

I) P, 2 P2 s

.-and, and-D

2 p (zshZyug - zshsog),

D g / where 5 is the slope of the amplifier 2 //.

Amplified by the amplifier 2 /; / the voltage of the third harmonic is fed to the rectifier Zsch n frequency doubler 7, which is loaded on the winding // L would create a frequency magnetic field.

The fourth and fifth members of the row are apologically formed.

The first term of the series is entered by a 5 ° potentiometer fed from a direct current source. The second term of the row, directly proportional to p, is formed by the rectifier 5 / fed from the winding /, potentiometer 4 and the switch 5 /. The sum of the output voltages at potentiometers 5 ° -5 y, taken off adder 6, is an electrical model of a power series ω (p).

Thus, the use of the sensor emf. A hall with several excitation windings allows to significantly simplify the circuit of the device and increase its speed.

Subject invention

A device for simulating the functions described by a power series consisting of a voltage source, voltage dividers, rectifiers and amplifiers, and an emf sensor. Hall, characterized in that, in order to simplify and increase the speed of the device, an emf sensor is used as a functional element for the implementation of a successive exponentiation operation. Hall, made with several windings of excitation of the magnetic flux, the number of which is one less than the exponent of the highest member of the power series.