SU1363464A1 - Displacement-to-code converter - Google Patents

Abstract

The invention relates to automation and computing, and is intended for use in motion to code converters. In order to increase the reliability of information, a converter containing a displacement sensor 1, switch 2, a pulse shaper 3, element OR 7, a reversible counter 9, a pulse shaper 4 are inserted, a trigger 8, an AND 6 element, and each pulse shaper 3.4 contains triggers 11,12. At the initial moment, the signals from datac 1 are in phase and code 0000 is recorded in counter 9. From the lower bits this code goes to a group of inputs of switch 2, which passes an inverse operational signal to the input of shaper 3, and an inverse lagging signal to the shaper 4 input. . When the shaft of the sensor 1 is moved, the trigger 11 is tilted. By a positive pulse front from the generator 10, the trigger 12 resets the trigger 11 and a counting pulse is formed at the input of the counter 9. The signal formed in the lower bits of the counter 9 gives a command to the switch 2 to re-switch the signals. The inputs of the formers 3 and 4 receive, respectively, inverse laps and direct advancing signals, according to which the operation of the circuit is carried out in a similar way. Items 5-8 are used to reset counter 9 to the initial state. 2 Il. sl from 05 Sld 4

Description

This invention relates to automation and computing technology and is intended for use in motion to code converters.

The purpose of the invention is to increase the reliability of information converter.

FIG. 1 is a block diagram of converter i of FIG. 2 — timing diagrams explaining its operation.

The converter contains a displacement sensor 1, a switch 2 made on the multiplexer, a generator of 3 and 4 pulses, elements 5 and 6 of a RSHI element 7, a trigger 8, a reversible counter 9 and a generator 10 of pulses. Each of the formers 3 and 4 pulses contains the triggers 11 and 12, and on the first four outputs of the displacement sensor 1, signals 13-16 are formed, and on the last output of the sensor 1 - the signal 17.

The converter works as follows.

Let, at the initial moment, the signals at the output of sensor 1 are in phase O (Fig. 2, a portion of the wavy line). The code stored in counter 9 is 0000.

Phase O corresponds to the 00 code of the two lowest bits of the counter 12. The switch 2 switches the signal 13 to the counting input of the trigger 11 of the driver of 3 pulses, and the signal of the driver of the former of 4 pulses to the counting input of the trigger 2. the counting input of the trigger 11 of the imaging unit 3 receives a positive edge of the signal 13, which coaxes this trigger. Trigger 12 of driver 3 is energized on the positive edge of the signal of generator 10, which then causes reset of trigger 11. On the next positive front of generator 10, trigger 12 is set to zero. Thus, a counting pulse is formed, an incremental counter 9. The code of the two lower bits used for switching signals from sensor 1 becomes slave 01, which corresponds to the phase of the second signal in Fig. 2 from signal 13 of sensor 1. In this case, signal re-switching occurs from the sensor 1. At the entrance of the imager 3 im

p 0

five

about

Q g

five

0

five

The pulses of the signal 14, at the input of the imaging unit 4 pulses - the signal 15.

When the sensor shaft 1 moves in the negative direction, a positive edge of the signal 15 is fed to the input of the pulse generator 4, along which a pulse decrementing the counter 9 is formed. The code of the two low-order bits of the counter 9 becomes equal to 00, and the input of the Simulator pulses op The signal 13 is switched, the input of the pulse generator 4 is the signal 14. The offset code stored in the counter 9, thus, becomes equal to the original.

Elements 7, 8, 5, and 6 are used to reset counter 9 on a zero mark signal 17 coming from the last sensor of sensor 1.

Thus, the accuracy of the converter information is high due to the automatic tracking of the current phase of the signals from sensor 1.

In addition, the use of all four signals 13-16 from the sensor in the formation of the counting pulses doubles the offset of the offset code, which greatly increases the measurement accuracy.

Claims (1)

1. A displacement transducer into a code containing a displacement transducer whose installation output is connected to the first input of the first element AND, a switch, an OR element, the first pulse shaper, the output of which is connected to the first input of a reversible counter, characterized in that information accuracy of the converter; a pulse generator, a second pulse shaper, a trigger and a second element AND, the first, second, third and fourth outputs of the movement sensor are connected to the first and second groups with The respective switch inputs, the third and fourth outputs of the displacement sensor are connected to the inputs of the second element, the output of which is connected to the first trigger input, the first and second outputs of the switch are connected to the first inputs of the first and second pulse formers, the second inputs of which are connected to the generator output pulses, the output of the second imager im313 pulses connected to the second input of the reversible counter, the outputs of the first and second pulse formers are connected to the inputs of the IL, the output of which is connected to the second input of the trigger, the output of which is connected to the second input of the first element And whose output is connected to the third input of the reversible counter, the first and second the low-order outputs of which are connected to the remaining inputs of the switch. Editor A. Ogar Compiled by M.Sidorova Tehred M.Dndyk Order 6379/53 Circulation 900 Subscription VNIIPI USSR State Committee for Inventions and Discoveries 113035, Moscow Zh-35, 4/5 Raushsk nab. Production and printing company, Uzhgorod, st. Project, 4 2, The converter according to claim 1, wherein the pulse shaper includes first and second flip-flops, the first input of the first flip-flop is the first input of the shaper, the output of the first flip-flop is connected to the first input of the second the trigger, the output of the second trigger is connected to the second input of the first trigger and is the output of the driver. Corrector.Kravtsova