CS269600B1 - Connection for tacheodynamo's angular acceleration - Google Patents

Abstract

The solution relates to engagement allowing shaft angular acceleration measurement motors whose speed is sensed tacho. The connection uses a signal corresponding to the angular velocity of the tachometer and after it generates an analogue signal corresponding to angular acceleration. This can be used in the control circuit acceleration and revolutions, or on direct measurement. Using potentiometric position sensor can be measured engaging the speed of movement. Solution utilizes in regulation and automation technology, robotics and computing.

Description

CS 269 600 B1

BACKGROUND OF THE INVENTION The present invention relates to a connection for measuring the tachometer angular acceleration.

The wiring forms part of the motor speed control circuitry. electric, hydraulic, having a one-way dynamometer as the angular velocity sensor.

Such speed servo systems, which often form the basis of positional servo systems, have a current flow control loop in their structure. Failure invariance and controllers provide speed control, as the tachodynamic provides information about the angular speed of the motor shaft, a signal corresponding to the angular acceleration cannot be obtained from the tachometer. Therefore, it is not possible to implement the acceleration control loop in the speed control circuits, which would have a beneficial effect on the servo characteristics.

These drawbacks are eliminated by the connection according to the invention, the principle of which is that the output of the averageizer is connected to the first input of the differential member and simultaneously to the input of the analog memory, which output is connected to the second input of the differential member. The differential member output is connected to the analogue acceleration input, which output is intended to be connected to a control or measuring circuit. The control logic circuit has a third output connected to the inverter's input, the first output is connected and an analog memory input and a second output with analogue acceleration input.

The connection of the invention enables the synthesis of the angular velocity control circuitry so that, in its structure, the acceleration control circuit is included, the celeration beam. This fact makes it possible to increase the invariance of servo mechanisms to faults, increase control and improve the flow of speed control circuits. The accuracy of the speed control is improved, the extent of regulation is retained, but it is bogus. In particular, the servo system obtains the above-mentioned properties in that the acceleration bar allows the gains of the controller gains to be set about a radically higher, without loss of stability. The angular speed control circuitry of the accelerator link, which forms a substantial part of the invention, takes on the characteristics of robust systems. , ie parametrically invariant systems. These systems are less sensitive to changes in the parameters generated by the cell due to the wide variation in engine load, or due to changes in the environment, e.g.

The figure shows a circuit according to the invention.

To the unidirectional tachometer 1 whose shaft is rotated by a certain angle velocity, the input 21 is connected to the signal averaging 2, which removes the sums that the output 22 is connected to the differential member 1 via the input 41 and is simultaneously connected to the input 31 analog memory 2 · Analog memory 2 output 32 is connected to differential member 42 input. The differential signal of the subscriber member 4 via the output 42 led to the analog input 51 of the acceleration memory 2 which outputs the resulting signal corresponding to the angular acceleration via the output 52. Control Logic Circuit & the third output 63 controls the averaging device 2 through its input 23. At the same time, the analogue memory 2 controls the analogue memory 2 via the input 33 and the analog output 2 via the first output 62.

The connection according to the invention operates as follows.

The signal from the tachometer 1 is fed to the differential member 4 into the differential member 4, after which it is fed in the averaging device 2, into which a signal corresponding to the previous angular velocity from the analog memory circuit J is simultaneously fed. The differential member 4 makes a difference between the current and previous speed signals at its output 43 generates a signal proportional to angular acceleration. This is maintained in the analog memory 2 circuit of acceleration, up to the point of arrival of the new angular jamming signal. The operation of the analog memory transducer 2 and the analog acceleration memory 2 is controlled by a multiplexing circuit 6.

Claims (1)

The aero-speeder 2 operates so that the analog speed signal comes from the tacho-dynamo X to its input 21 so as to remove Sumy at its output 22 from the signal corresponding to the average value of the angular velocity of the timing intervention given by the control logic 6 via the input 23. The analog memory 3 receives, through input 31, the magnitude of the angular velocity of the coupler 2 and maintains the value. It is controlled via input 33 by the control logic 6 so as to maintain the forward speed before the acceleration signal is evaluated in the differential member 6 and the analog memory acceleration. The differential member 4 makes the difference between the analog signals at its input 41 and 42 and this difference is at the output 43. The analog memory 5 accelerates to its input 51 a signal corresponding to the angular acceleration and this after certain time points determined by the control logic circuit ββ. The input 531 keeps it at the output 52. The control logic 6 controls the operation of the averifier 2 via the output 63 so that the resulting angular velocity signal is without Sumov, and simultaneously controls the operation of the analog memories 3 and 5 via the outputs 62 and 61, so as to provide a time difference in the measurement of the angular velocity and to change the acceleration reading by analogue steam 5. acceleration only at certain points in time. The wiring can be used in many servo-mechanisms where a one-way tachometer is used as an engine speed sensor. At the same time, it is also possible to use a straightforward measurement of acceleration by means of tacho-dynamo, it can also be used for measuring the speed of the case, instead of tacho-dynamo 1 a potentiometric position sensor is connected. The incorporation makes it possible to obtain a differentiated or possibly derived signal from the analogue compounds containing the parasitic sum components. The application of the invention is possible in measurement, calculation and control technology, robotics and automation. BACKGROUND OF THE INVENTION A tachometer acceleration measurement connection, the terminals of which are connected to the inlet of an averaging device, characterized in that the outlet (22) of the aero (2) is connected to the first input (41) of the differential member (4) and simultaneously ( 31) of analog memory (3), the output (32) of which is connected to the second input (42) of the differential member (4) and the output (43) of the differential member (4) is connected to the input (5D of the analog memory of acceleration (5) ), the output (52) of which is intended to be connected to a control or measuring circuit, wherein the control logic (6) has a third output (63) connected to the inlet (23) of the moderator (2), the first output (62) connected to an analog memory input (33) and a second output (61) with an analog memory (53) input (5).