SU498738A1 - Leveling device - Google Patents

Description

terminal 7). At the same time, the pulses coming from the input terminal to the summing input 2 of the counter 1 increase its readings, and the signals from the generator 4 coming to the subtractive input 5 of the counter 1 decrease its readings. In this case, if the contents of counter 1 do not decrease to zero and do not reach a state in which its highest bit goes from state "O to state" 1, signals with a period T come from generator 4 to the output terminal of the device.

If the average period of the pulses arriving at the input of the device is lengthened, the contents of counter 1 begin to decrease and reach zero. At the same time, at the output of the interloltor 3, the signal disappears, for example, a voltage drop from "a single value to" a zero occurs. This voltage drop is fed to the subtracting input 7 of counter 6 and reduces its content by one. In this case, the counter 6 acts through the switch 9 on the generator 4, lengthening the period of the signals. The signal output period of the device is lengthened. The readings of the counter 1 also begin to grow. If in the future its readings are reduced to zero, the operation of the device is repeated as described above, and the period of signals following the output of the device is even longer. This happens every time counter 1 changes from a state other than zero to the state "O.

If the average period of the pulse arriving at the input of the device is shortened, the contents of counter 1 begin to increase and reach a value at which the most significant bit of the counter goes from state "O to state". In this case, the summing input 7 of the counter 6 receives a signal (for example, a voltage drop from "zero to" single "), which increases its readings by one. In this case, the counter 6 through the switch 9 acts on the generator 4, shortening the period of its signals. The signal output period of the device is shortened. The readings of counter 1 also begin to decrease. If in the future its contents increase again to such a value, with

where its highest bit transitions from the state "O to state" 1, the operation of the device is repeated as described above, and the signal following period at the output becomes even shorter. This happens all the time when the most significant bit of the counter 1 goes from the state "O to state" 1. Thus, if the average follow-up period of the input statistically distributed pulses arriving at the device input (within the limits of possible statistical deviations) is equal to the follow-up period of the signals produced by the generator 4, signals with a constant period follow at the device’s output.

If the average follow-up period of the input pulses becomes longer, the output of the device receives signals with an elongated, but regular (constant) follow-up period.

If the average follow-up period of the input pulses is shortened, the output of the device receives signals with a reduced, but also a regular (constant) follow-up period.

This makes it possible to use the method of zero beats, which is highly accurate, for studying statistical pulse fluxes, as well as to investigate pulse fluxes using the Lissajous, using the Lissajous figures, because the output signal flow is regular.

Subject invention

A leveling device containing a reversible counter, the output of which through an interpolator is connected to the input of the generator, the output of which is connected to the subtractive

An input of a reversible counter, characterized in that, in order to increase its reliability, an additional reversible counter and a switch are installed in it, and the generator is designed as a device with discrete frequency control, the interpolator's output connected to one input of an additional reversible counter, the other input of which connected to the high-voltage output of the first reversible counter, and the outputs of the additional reversible counter are connected to the generator via a switch.

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