SU446836A1 - Counter display device - Google Patents

Description

----- one .

The invention relates to oblas and electrical measuring equipment.

There are known calculating devices, which contain counters in one-to-one decoders and digital indicators.

The proposed device differs from those known there that it is equipped with two additional counters with code comparison circuits, a trigger, two AND gates, and the output of the main counter through the first code comparison circuit is connected to the output of the first additional counter and through the second circuit to the output of the second additional counter , the output of the first code comparison circuit through the trigger and the first logic element I is connected to the control input of the first additional counter, and the output of the second comparison circuit is s - through a second logic AND elements connected to the signal input of the second further counter.

These differences in the proposed device allow the indication and registration of extremes of values from a number of changes.

The drawing shows the scheme of the described device, containing the main counter I, additional counters 2, 3, comparison schemes of codes 4. 5, logic elements AND 6, 7, trigger 8, decoders with digital indicators 9, 10,

The device works as follows.

Before starting measurements

5 setups in the initial state, the counter 2 is set to the position 99 ... 9, and the counters I, 3 to the position 00 ... O. The output of the comparison circuit of codes 4 is in the logical O state, and the output of the comparison circuit of codes 3 is in the state of logical I. In the elements 6 and 7, the passage of discharges is discharged.

five

During the first measurement, the pulses are counted by counters I and 3, since during the measurement the coincidence is measured, the codes in these counters are not violated.

After finishing the first measurement; Not by command recording, information is copied from counter I to additional counter 2. The pulse of collection arrives after each measurement returns counter I and trigger 8 to the initial state of state. Before the second and subsequent: measurements, the outputs of both code comparison circuits are ; It is logical that, in element 7, the passage of pulses is forbidden. A series of pulses corresponding to the second measurement is counted by the counter. If the result of the second measurement is less than the result of the previous measurement, then the information from counter I on the command will be written to counter 2, If the result of the second measurement is more, start; from the moment the codes coincide in counts 1, -2, 3, the pulses are counted by an additional counter 3 The occurrence of the coincidence of the codes in the counters 1 2 impulse changes the state of trigger B, as a result of which the write impulse is prevented from passing through electr M9HT 6,

in subsequent measurements, either the information in the additional counter is $ 1, if the next measurement result of the value stored in the © © counter or the information in the additional counter 2 (increment), if the next measurement result is greater than the value stored in the counter 2

The measurement result is not equal to 8 if the next measured value is greater than smaller, but smaller than

PREVENTING INVENTIONS

A metering device containing a main counter, bitwise distance meters and digital indicators, distinguished by the fact that, in order to indicate and register extreme values from a series of measurements, it is equipped with two additional counters with comparison circuits, trigger, two logical

And, at that, the output of the main counter through the first code comparison circuit is connected to the output of the first additional counter and via the second circuit to the output of the second additional counter 8, the output of the first code comparison circuit via a trigger and the first logic element connected to the control input of the first

additional counter, and the output of the second circuit, comparing codes through the second logic element And is connected to the signal input of the second additional counter.

Score

ycmaHoSt a