SU930636A1

SU930636A1 - Frequency comparator

Info

Publication number: SU930636A1
Application number: SU802878125A
Authority: SU
Inventors: Мирон Исакович Гроссман; Дмитрий Акимович Пластун; Валерий Александрович Рыбников
Original assignee: Предприятие П/Я В-8695
Priority date: 1980-02-06
Filing date: 1980-02-06
Publication date: 1982-05-23

Description

II

Изобретение относитс к импутшсной технике и может быть использовашо, например,в устройствах допускового контрол .The invention relates to impulse technology and can be used, for example, in tolerance control devices.

Известен частотный компаратор, содержащий блок временной развертки на счетчике, формирователи импульсов, генератор опорной частоты, источники пороговых частот, триггеры l .Known frequency comparator containing a block of time sweep on the counter, pulse shapers, the generator frequency reference, the sources of threshold frequencies, triggers l.

Недостатком этого устройства $шл етс ограничение по числу контролируемых т)чек (одна точка), что сужает функциональные возможности компараторов , ограниченный частотный диапазон.A disadvantage of this device is the limitation on the number of monitored points (one point), which limits the functionality of the comparators, the limited frequency range.

Наиболее близким техническим решением к изобретению вл етс частотный компаратор, содержащий формирователь импульсов, вход которого подключен к входной шине устройства, выхрд - к первому входу блока временной развертки кода н к первому входу блока формировани знака отклонени частоты, генератор опорной частоты, выходом ПОД1Щ11 - ,The closest technical solution to the invention is a frequency comparator containing a pulse shaper, the input of which is connected to the input bus of the device, and the output is connected to the first input of the time code scanner code n to the first input of the frequency deviation sign forming unit, the reference frequency generator, the output of AC111

ченный ко второму входу блока временной развертки кода 23 .Code to the second input of the time code block 23.

Недостатком устройства вл етс ограниченность функциональных возможностей .The disadvantage of the device is limited functionality.

изобретени - расширение функциональных возможностей путем расширени числа контролируемых точек по частотному диапазону. invention - extending functionality by expanding the number of controlled points over the frequency range.

Поставленна цель достигаетс тем, The goal is achieved by

10 что в частотный компаратор, содержащий формирователь импульсов, вход которого подключен к входной шине устройства, выход - к первсму входу блока щземенной развертки кода и к первому входу 10 that to a frequency comparator containing a pulse shaper, the input of which is connected to the input bus of the device, the output to the first input of the earth scanning unit of the code and to the first input

15 блока формировани знака отклонени частоты, генератор опорной частоты, щдходом подключенный к второму входу блока временной развертки кода, введены блок регистрации контрольных точек 15 of the frequency deviation sign forming unit, the reference frequency generator, connected to the second input of the time reference block of the code, the checkpoint registration unit is entered

Claims

20 and block c of the fogovy channels, the first output of which is connected, to the second input, is second. swarm output - to the third input of the form of the frequency deviation unit of the frequency deviation which was taken by connecting the first output of the time variable code block, and the first input is connected to the first input of the checkpoint registration unit, the second input of which is connected to the second output of the time scanner and the first input threshold channels, the second input of which is connected to the third output of the block of time scanning of the code executed, for example, on two shift registers connected in a ring circuit. The diagram shows the block diagram of the device. The device contains a pulse former 1, a time sweep unit 2 of the code executed on the shift registers 3 and 4, a frequency deviation sign forming unit 5, a reference frequency generator 6, a control point registration unit 7, a threshold channel unit 8. The device works as follows. In the initial state, registers 3 and 4. the pulse from shaper 1 is set to the zero position. The pulses of the reference frequency come from the generator 6 to the counting input of the register 3, on the parallel outputs of which a logical unit circulates. With each sweep cycle of register 3 on its corresponding parallel outputs, the thresholds of the test points are decrypted, and a pulse from its output is used to shift the register 4 by one bit. At the parallel outputs of register 4. decryption of control points occurs. The check point is selected by a pulse with a duration equal to the cycle time of register 3. The pulses corresponding to the time thresholds of the check points formed by register 3 and impulses corresponding to the coordinates of the control point formed by register 4 are sent to block 8. Blrk 8 allocates time thresholds corresponding to register-decoded checkpoint 4. The pulses of the indicated time thresholds are with the settings for block 5, and the pulse of the control point is the settings for block 7. The pulse of the controlled frequency coinciding in time with the area of the decrypted control point, arriving at block 5, forms at its output the sign of the frequency deviation, block 7, highlighting the erf) output decrypted checkpoint. Also, the frequency is monitored when a controlled frequency pulse hits the zone of subsequent control points. Frequency comparator, containing a pulse shaper, whose input is connected to the device input bus, output to the first input of the time code block and to the first input of the frequency deviation sign forming unit, reference frequency generator, the output of which is connected to the second input of the time scanner code that has a ret that, with a chain, extends the functionality, a checkpoint registration block is entered into the block of threshold channels, the first of which is connected to the second real input, Ora exit. - to the third input of the frequency deviation sign forming unit, the four-input input of which is connected to the first output of the time variable code, and the first time is connected to the first input of the control point registration unit, the second input of which is connected to the second output of the code scanner and the first input of the cost unit channels, the second input of which is connected to the third output of the unit of the time code sweep, executed, for example, on two shift registers connected in a ring circuit. Sources of information taken into account during the examination 1. USSR author's certificate No 563712, cl. N OZ K 5 / 2O, 19. O1.76.

2. USSR author's certificate number 570193, cl. H 03 K 5/2 O, 03.01.78.

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