SU1418623A1 - Device for monitoring direction of rotation - Google Patents

Abstract

This invention relates to a measurement technique. The purpose of the invention is to increase reliability and reduce power consumption. Sensors 1 and 2 with overlapping control zones form the source signals, which are processed by two identical channels 4 and 5, consisting of the same type of latching triggers 6, 7, 8 and 9, 10, 11, respectively. In the positive direction of rotation, a single signal occurs at the output of channel 4, and at negative, at the output of channel 5. 1 sludge.

Description

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The invention relates to measuring and measuring (M i g technician n can be used by the user in autonomous power gauges for determining the direction of lyn-ge elements in the form of hBiiiiix reverse blades vintop Smezhi.yi area The devices that are used are metaphologists and gilles, where it can be used in screw anemometers and flow meters.

The purpose of the isobrotection is to improve the incidence and decrease the

The drawing shows the functional diagram of the device

The device contains two sensors 1 and 2 located in such a Kd that their zones of operation partially overlap.

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indications of the direction of the turn; in the form of two identical E.YH channels 4 and 5, the first channel 4 contains series-connected triggers 6–8, the second channel 5 - triggers 9–11. The outputs of sensors 1 and 2 are connected to MUE and dynamic C-inputs of the triggers 6 and 9, respectively, and inverse; {R.-inputs of the trigger heroB. 7 5 9 and б „ПЗ, respectively, direct To- Inputs tt) of the igger 8 and 11 are coordinated with the input Reset,

The device works as follows about i-i.

The initial state is diminished.

the time when the executive third triggers 8 and 11 of both channels are reset to O via the bus. Reset and both sensors 1 and 2 produce a zero signal, which determines the reset to O state of the preliminary triggers 6.7 to 9-10.

It is assumed that the rotation of the gang; e-stem in the direction 4- at which the sensor 2, then the sensor 1, and then their shut-down in the same sequence,. When sensor 2 is triggered, the trigger 9 connected to it remains with the zero signal of sensor 1 reset in O, therefore, the state of all triggers does not change. At the next moment the sensor 1 is triggered on the forward dynamic From the input of trigger 6, the signal changes from O to 1, setting it to state M, since the inverse R input is triggered e. 6 earlier

botawipp; Sensor 2 sends a signal 1. When the sensor 2 turns off, sensor 6 triggers a signal O through an inverse R input and is reset to O, therefore, on an inverse E1; the current C-input of trigger 7 changes the signal from 1 to O, which sets it to state 1; Since sensor 1 is still switched on and there is a signal M on the T5-inverse R input of trigger 7, then changing the signal from O to 1 on the direct dynamic C input of trigger 8 sets it to 1%, thus indicating the corresponding direction of rotation, After time, determined by the speed of subsequent external devices, trigger 8 will be reset to O by a bus signal. Reset to its R input, since the speed of external devices processing information about the direction of rotation, which are purely electronic in structure, significantly higher than the speed of the electromechanical device, the arrival of a signal Reset always ahead of the next cycle of indicating the direction of rotation. The device returns to its initial state when the sensor 1 is next turned off when the inverse R - input of the trigger 7 is given a signal O, resetting it to zero state

In the case of the opposite direction of rotation, the corresponding sensor triggering sequence causes the appearance of a single signal at the output of the second channel trigger 11.

Claims (1)

Invention Formula A device for determining the direction of rotation, comprising two sensors with overlapping triggering zongs and a node indicating the direction of rotation, is made in the form of two identical channels, and ka; (- one of the channels contains two triggers, characterized in that, in order to increase reliability and decrease power consumption, the third trigger is included in the composition of each channel, the outputs of the first and second sensors are connected to the direct dynamic C-inputs of the first triggers of the first and second channels, respectively. 31 18623 inversely, R-inputs are inverse connected to the Reset input, and in each trigger of the second and first channels – D channel, the outputs of the first fishing triggers, respectively, and inverse are connected to inverse dynamic signals. R-inputs of second triggers of the first g With-inputs of second triggers, outputs and the second channels, respectively, which are connected to the direct dynamics: the direct R inputs of the third flip-flops with the social C-inputs of the third flip-flops.