SU444049A1 - The device control step periodic structures - Google Patents

Description

one

The invention relates to measuring and computing equipment, can be widely used in automatic step control of periodic structures of electronic devices, in particular, spirals of traveling wave lamps (TWT), comb of backward lamps (BWO), receiving and amplifying lamp grids (PUL), nets cathode ray tube (CRT), etc.

Electronic devices used in digital devices are known, consisting of recalculated decades with presetting, presetting switches, and a matching circuit.

However, these devices with automatic control of periodic structures do not allow the continuity of comparison of controlled periods (steps), which is caused by the very specifics of measurements of steps of periodic structures, where the end of each previous step is the beginning of each subsequent one, and the actual step size of the controlled structure can be large less than or equal to the reference step value.

The proposed device is characterized in that a similar block and a switch are inserted into it. The outputs of the switch are connected to the inputs of the decades with the preset of both blocks, the inputs of the switch are connected to the outputs of the coincidence circuits of both blocks. At the same time, two other inputs of the switch are connected respectively to the buses of the control pulses and the filling pulses.

FIG. 1 shows a block diagram of the device; in fig. 2 - time diagram.

The scheme contains switch 1, decades with pre-installation (DPU) 2 and 3,

matching schemes (CC) 4, 5 and preset switches (PUF) 6 and 7.

The device works as follows. Before working on the blocks using preset switches

6 and 7, are set to values that add up to a reference step size of the periodic structure.

At the first moment, when the signal 1 of the Beginning of the step indicating the beginning of the period of the periodic structure is missing at the control input (INP) of the switch 1, the inputs of the DSP 2 and 3 are disconnected using the switch 1 from the output of the filling pulse generator (In) - i on temporary

chart).

When entering the input control Bx. UTP of switch 1 of the signal "Beginning of step, filling pulses arriving at Bx. UPR of switch 1 of the signal “Beginning of the gauge takes its filling until

it will not be brought into the "9 (nine) state."

At the moment of coincidence, the output of the CC 4 produces a pulse, which with the aid of PPU 6 returns the DPU 2 to its initial state and, acting on the switch 1, switches off the input B. switch (filling pulses do not arrive at the input of the DPU 2) and connect it to the input of the DPU 3 (interval t - t on the timing diagram). DPU 3 is filled, and at the moment of coincidence, the output of CC 5 produces a pulse, which with the help of PPU 7 returns DPU 3 to its initial state and, affecting switch 1, disconnects input Bx. (feed pulses) from the input of the DPU 3 (interval t2 - t on the timing diagram).

Further, the sequence of operation of the device blocks can be repeated if the signal arrives at Bx. The SPD of the switch 1 at the same time as the impulse CC 5, and this is possible if the measurement hi is equal to the reference standard / Ig.

However, with the operation of this device, the impulse “the beginning of the schag on Bx. The SPD of switch 1 can arrive, first, after the impulse SS 5 when hi Le; secondly, earlier than the pulse of SS 5 when hi hg.

In the first case, some period of time (interval 5-6 in the timing diagram) the device is in the initial state, i.e., the GIZ pulse to the inputs of DPU 3 and 2 is not received.

In the second case, parallel operation of the device blocks occurs in two adjacent

chaps (intervals tg - tg on the time chart), i.e., the hi + 2 steps on the last unit of the device have not finished yet, and on the first link, the comparison has already begun

schaga.

Thus, the possibility of simultaneous comparison of two adjacent periods on the device allows to ensure the continuity of comparison of the periodic structure and

realize the calculation of the period faults by counting the number of GIZ pulse in the interval when the device is in the initial state (interval t - / e in the timing diagram) or when

the work of the links is parallel (the interval tg - tg on the timing diagram). In the first case, the fault (DL) will be positive, and in the second - negative.

Subject invention

A device for controlling periodic structures consisting of a block containing a decade with a preset, the input of which is connected via a coincidence circuit with the output of a preset switch, characterized in that, in order to realize the continuity of the comparison, a similar block and switch are inserted into it,

the outputs of the commutator are connected to the inputs of the decades with the preset of both blocks, the inputs of the switch are connected to the outputs of the matching circuits of both blocks, and the other two inputs of the switch are connected respectively to the control pulse and the filling pulse.

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