SU705651A2 - Stroboscopic converter - Google Patents

Description

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 The invention relates to a measurement technique, namely, to a time conversion device; scale signals and can be used to register broadband signals using ordinary low-frequency recording equipment.

Known stroboscopic converter on the main author. St. 356565, containing a strobe generator, a compensator and two discriminators connected by mutually interdependent connections, the strobe generator being connected with both discriminators, and the compensator and the input source with only one discriminator {.

However, the known device has limited functionality, since it can only convert an o. C input signal and only in an inverted form.

The object of the further invention is to enhance the functionality of the stroboscopic converter.

For this, six input attenuators are additionally introduced into the stroboscopic converter, with the first inputs

the first and second discriminators are connected via the first and second input attenuators to the first input terminal of the stroboscopic converter; the second inputs of the first and second discriminators are connected via the third. and the fourth input attenuators with the second input terminal of the stroboscopic converter, and the compensator output is connected via the fifth and sixth input locators to the third inputs of the first and second discriminators

respectively.

FIG. 1 and a picture of a structural electrical circuit of the device; in fig. 2 - transient characteristics of direct I and inverted 2 types, as well as the difference

signals 3.

The stroboscopic converter consists of the first I and second 2 discriminators of the strobe generator 3, the compensator 4 of the first input attenuator 5, the second input attenuator 6, the third input attenuator 7, the fourth input attenuator 8, the fifth input attenuator 9, the sixth input attenuator 10, and also

the first input terminal 1 and the second input terminal 12.

From the strobe generator 3, the fourth inputs of the first discriminator 1 and the second discriminator 2 sent the strobe signals V and Vg, respectively, depending on the function, when the input signal U is fed to the first input terminal Pi of the input signal Ut to the second input terminal 12, the device operates as follows:

a) receiving and converting the difference of the input signals Ui-Ue. To obtain and convert the difference of the input signals Ui -Ut, the transfer coefficients of the input attenuators 6, 7 and 9 are set to zero. In this case, the input of the discriminator 1 is summed with a weighting factor corresponding to the coefficient

transmitting the input attenuator 5, the input signal Ui and the strobe signal V at the input of the discriminator 2 are summed with the weighting factors corresponding to the transfer coefficient HtaM of the attenuators 8 and 10, the input signal Ui, the compensation signal E from the output of the compensator 4 and the strobic signal Vj ,. When the sum of the signals reaches the threshold of one of the discriminators, the latter is triggered and prohibits the triggering of the other discriminator along the inhibit circuit. Compensator 4 is controlled depending on whether discriminator 1 has triggered or not. After a short gating trip (in the steady state), the output of the compensator 4 sets the signal E, which is proportional to the instantaneous value of the difference of the signals Uf-Ui in the gating phase. The shift of the gating phase relative to the input signals Ui-Ui, the output of the compensator 4 is the time-converted difference of the signals Ui-Ua;

b) receiving and converting in time the difference of signals ig-U. Receiving and converting the difference of the input signals Uft-Ut is similar; as in the case described above, only in this case the transfer coefficients of the input attenuators 7, 6 and 10 are set to zero. In this case, after repeated gating at the output of the compensator 4, a signal is obtained that is proportional to the instantaneous value of the signal difference .Ui-U. By shifting the gating phase with respect to the input signals Uj and Uji, the output of the compensator 4 is the time-converted difference of the signals Jt-Ui;

c) inverting and converting the input signal U |. To invert and convert the input signal U) in time, the coefficients are equal to zero, the transmissions of the input attenuators 6, 7, 8 and 10. At the same time, the input signal Ui is summed up at the input of the discriminator 1,

the signal is a compisit E and a Vi strobe signal, and only the Vg strobe signal is input to the discriminator 2 input. The phase shift Vi of the phase with respect to the input signal Ut, the input signal Uj is inverted and time transformed at the output of the compensator.

d) inverting and converting the input signal U. For inverting and converting in the Burme And input signal Ua, the transfer coefficients of the input attenuators 5, 6, 8 and 10 are false zero.

e) direct conversion of the Uf signal. For the direct conversion of the input signal, Ut is set equal to

zero transfer coefficients of the input attenuators 6, 7, 8 and 9;

f) Direct conversion of the input signal Ui. For direct conversion, the input signal Us is set equal to

zero transfer coefficients of the input attenuators 5, 6, 8 and 9.

g) direct conversion of the sum of the signal Ui -f Ua. For a direct conversion, the sum of the signals Ut -f .Uj is set to zero transfer coefficients

INPUT ATHENENTS b, 8 and 9;

h) inverting and converting the sum of the signals Ui + UA. For this, the transfer coefficients of the input attenuators 6, 8 and 10 are set to zero. To convert all the above signals with gain, set the values of the transfer coefficients of the input attenuators 9 and 10 so that their ratio to the transfer coefficients of the input attenuators 5, 6, 7 and 8 is less units.

Claims (1)

1. USSR author's certificate No. 356765, cl. And .03 C 3/64, 26.01.71.