SU758227A1 - Device for monitoring shaft angular position-to-code converter - Google Patents

Description

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The invention is intended to convert codes and can be used in the system of automatic processing and transmission of information, and 5 also in computing.

There are known devices for monitoring converters of angle of rotation into a code, containing a comparison unit, a delay line, elements I, and their own pulse generators;

The closest to the invention by. technical entity is a device for determining the error of the transducer of the angle of rotation of the shaft '^ d in the code containing the counter, delay line, trigger and element of the satellite].

A disadvantage of the known converters is the inability to control the information received during the ed operation of the converters of the angle of rotation of the shaft into the code.

The purpose of the invention is to improve the accuracy due to the monitoring of the performance of the Converter 25 in the code, its operation.

This is achieved by the fact that in the device for controlling the converter of the angle of rotation of the shaft into a code containing a counter, a delay element, a trigger, ed

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element I, element ILY and additional triggers are introduced, one input of each trigger is connected to the corresponding information output of the converter, and the other inputs are combined and connected to the output of the delay element, the outputs of the trigger are connected to the corresponding input element. OR, the output of which is connected to one of the inputs of the AND element, the input of the counter is connected to the output of the sync pulses of the converter, and the output to the other input of the AND element and to the input of the delay element.

The drawing is a functional diagram of the device for controlling the converter angle of rotation of the shaft in the code.

To clarify the invention, a schematic diagram of the transducer of the angle of rotation of the shaft into the code is shown on cher ^ and contains

light sources 1.1-1.p + 1, with the light source intended for the syncrodisk of the code disk2, photodiodes 3.1-3.p + 1, the last of which is designed to receive signals from the syncrodiscipline. OUTPUTS φοτό receivers are connected to the inputs of amplifiers-formers 4 .1-4.p + 1,

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A device for monitoring the operability of the angle of rotation of the shaft into the code contains triggers 5.1 ~ 5.n "single" inputs of which are connected to the outputs of amplifiers-formers 4.1-4.P, counter 6, the input of which is connected to the amplifier-former 4.n + 1, and output through the delay element. 7 - p. 'Zero inputs of the trigger 5.1-5. P., zero outputs of which are connected to the corresponding input of the element OR 8,

the output of the counter 6 is connected to the first input of the element I.9, the second input of which is connected to the output of the element OR 8. The output of the element AND 9 can be connected to the stop circuit of the converter or the display circuit.

The device works as follows. .

The signals from the photodetectors 3.1-3.p + 1 are fed to the input of the amplifiers 4.1-4.p + 1, where they are amplified and formed into pulses of the required shape and duration. From the outputs of the amplifiers 4.1-4.p + 1. the signals arrive at the single inputs of the 5.1-5.η flip-flops and set them to "one". The signals from the output of the clock-shaping amplifier are fed to the input of counter 6. The latter counts the clock pulses, which the post blunt in one turn of the code disk. After a complete disk rotation, the counter issues a pulse, which through the delay element 7 enters the zero inputs of the 5.1-5p triggers and sets them to "zero". The signals from the zero outputs of the trigger 5.1-5p are fed to the inputs of the element OR 8. In addition, the pulse from the counter 6 is fed to the first input of the element AND 9, and if

stories, i.e. for one revolution, the signal from the corresponding photodetector did not come to it, then the output of the element OR 8 will be the resolving level, which will go to the second input of the element "AND" 9 and allow the signal to flow from counter 6. At the output of the element 9, there will be a signal that will cause the system to stop working and the corresponding indication.

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Claims (1)

Claim A device for controlling a converter · shaft rotation angle into a code containing a counter, a delay element - a trigger, an AND element, characterized in that, in order to increase reliability, an OR element and additional triggers, one input of each trigger, are connected to it the corresponding information output of the converter, and the other inputs are combined and connected to the output of the delay element, the outputs of the flip-flops are connected to the corresponding input element OR, the output of which is connected to one of the inputs of the AND element, the counter input is connected to Exit preobrazozd Vatel clock, and the output - to the other input of the AND and the input of the delay element.