SU859796A1 - Reversible discrete displacement pickup - Google Patents

Description

(54) REVERSIBLE DISCRETE MOVEMENT SENSOR

one

The invention relates to a measurement technique and can be used, for example, to control the movement of objects in automatic devices.

A discrete interlacing sensor is known, which contains input keys, OR logic gates, control keys, movement direction triggers, power keys, output keys, a one-shot 1. The disadvantages of the known device are poor noise immunity and slow response.

The closest technical solution to the present invention is a reversible discrete displacement transducer containing two input keys, two displacement direction keys, the first input of each of which is connected with the first output of the corresponding input key, the first output with the fourth input of another displacement direction key, two output key, the output of the first of which is connected to the second input of the second key of the direction of movement, the output of the second - to the second input of the first key of the direction of movement 2.

A disadvantage of the known device is relatively low reliability of operation, due to the failure of the triggers of the direction of movement and the output triggers of pulsed noise.

The purpose of the invention is to increase the reliability of the device.

This goal is achieved by the fact that the sensor is equipped with two delay lines, the first output of the first input key through the delay line is connected to the third input of the second key of the direction of travel, the first output of the second input key through the second delay line to the third input of the first key of the direction of movement each of the input keys is connected to the second output of the corresponding key of the direction of travel and to the second input of the corresponding output key, the first inputs of which are connected to the inputs of the corresponding x delay lines.

The drawing shows a diagram of the sensor.

Claims (2)

The discrete reversing motion sensor contains input keys 1 and 2, delay lines 3 and 4, output keys 5 and 6, keys 7 and 8 of the direction of movement. The first outputs of the input keys 1 and 2 are connected respectively with the first inputs of the output keys 6 and 5, the first inputs of the keys 7 and 8 of the direction of movement and through the lines 4 and 3 delays, respectively, with the third inputs of the keys 8 and 7. The second outputs of the input keys 1 and 2 connected, respectively, to the second outputs of the keys 7 and 8 of the travel direction and to the second inputs of the output keys 5 and 6. The first output of the travel direction key 7 is connected to the fourth input of the movement direction key 8, and the first output of the movement direction key 8 to the fourth That input key 7 direction of movement. The sensor works as follows. When a moving object enters the sensor's zone, one of the input keys is activated (opened), for example key 1. From its first output, the signal goes to the first input of the moving direction key 7, the first input of the output key 6 and through the delay line 4 to the third input of the key 8 opposite direction of movement. At the same time, the keys 5 and 6 are energized via the said inputs. The directional key 7 is opened, and the signal from the first output arriving at the fourth input of the key 8 prevents the opening of this key both by the signal coming through the delay line 4 at its third input and at the first input after opening the key 2. From the second the output of the input key 1 receives a blocking signal to the second input of the output key 5, which prevents the latter from opening by the signal coming from the second output of the key 7 of the direction of travel after energizing the key 5 on the first input. At the next moment, the input key 2 is activated, supplying power from the first output to the key of direction 8 and to the output key 5 via the first inputs, as well as a signal through the delay line 3 to the third input of the key 7 of direction. However, changes in the state of the circuit did not occur. Upon further movement of the object in the sensor zone, the input key 1 is closed. This removes power from the output key 6, as well as the blocking signal from the second input of the output key 5. The key 7 of the direction of travel remains open due to the signal received to its third input via the delay line 3, from the first output of the input key 2. A signal from the second output of the key 7, which arrives at the second input of the output key 5, opens the last, forming a control signal at its output. From the output of the key 5, the signal arrives at the second input of the key 8 of the direction of travel. The key 8 opens with this signal and now the signal from its first output, which arrives at the fourth input of the direction key 7, closes the last one. After closing the key 7, the output key 5 also closes. This ensures the short duration of the output signal, which increases the speed of the sensor. Opening the movement direction key 8 prepares the sensor circuit for outputting a signal of the opposite direction of movement from the output key 6 in case the object, having stopped in the action zone of the input key 2, starts moving in the opposite direction in the description under consideration. The next time the object moves, the input key 2 closes and the supply voltage is removed from the circuit. The device thus returns to its original state. When an object moves in the opposite direction, the device operates in the same way. Claims Informative discrete displacement transducer containing two input keys, two displacement direction keys, the first input of each of which is connected with the first output of the corresponding input key, the first output with the fourth input of another displacement direction key, two output keys, the output of the first one connected to the second input of the second key of the direction of travel; the output of the second to the second input of the first key of the direction of movement, characterized in that, in order to increase reliability, it is equipped with two delay lines, the first output of the first input key through the delay line is connected to the third input of the second key of the direction of movement, the first output of the second input key through the second delay line to the third input of the first key of the direction of movement, the second output of each of the input keys is connected to the second output of the corresponding the key of the direction of movement and with the second input of the corresponding output key, the first inputs of which are connected to the inputs of the corresponding delay lines, Sources of information received in consideration of the examination 1. USSR Author's Certificate No. 431530, cl. G 08 C 9/08, 1972. 2. USSR author's certificate No. 566125, cl. G 01 B 7 / DO, 1975 (pyotype).