SU781573A2 - Apparatus for recording remote discrete displacements - Google Patents

Description

(54) DEVICE FOR REGISTRATION OF REMOTE DISCRETE MOVEMENTS

one

The invention relates to instrument engineering and can be used for remote control of instrumentation, for example, during gas dynamic tests with aerodynamic models of the 1st model.

According to the main author. St. No. 377623, a device is known comprising mechanisms for linear and angular movements of an aerodynamic probe with reversing electric motors, photo sensors with disks and recording units, while the mechanisms of linear and angular movements are kinematically connected to disks of photo sensors, the outputs of which are connected to the inputs of counters of recording units connected through logic circuits with reversible electric motor mtsu control circuit and master device, which, together with the logic circuit provides stopping of NDA anywhere in the measured range of 1,

The disadvantage of this device is the independent operation of the control circuit of the synchronous reverse of the electric motor and the counter, which causes disruptions in the measurements and leads to inaccurate

registering linear motion.

The purpose of the invention is to improve the registration accuracy.

This goal is achieved by the fact that, in the device, the initial state unit is inserted connected to the input of the control circuit and the output of the logic circuit of the linear motion registration unit.

The drawing shows a block diagram of the proposed device.

The device includes an aerodynamic measuring probe 1, a reversible electric motor 2, a linear movement mechanism consisting of a gearbox 3, a lead screw 4 and a moving carriage 5, a photo sensor 6 with a disk 7 and a light bulb 8, and a recording unit 9 consisting of a reversible counter 10 pulses , logic circuit .1, visual readout (print) and (or) block 25 of the block 12 for data input into the computer, setting (software) device 13, synchronous reversal control circuits 14. electric motors and pulse counter and output unit 15 state.

The aerodynamic measuring zone 1 has a connection with a V-shaped manometer 16 by means of pneumatic actuators 17 and 18 and a mechanical connection with the warp carriage 5. With a p) gearbox. 3, a disk 7 is connected with a hole in front of which a photo sensor 6 is located, illuminated through the disk opening by a lamp 8. The input unit 15 of the initial state is connected to the output of logic circuit 11, and the output is connected to the cxeNOii 14 input of the synchronous reversible motor and counter.

The device works as follows .. „

Ya specifying (prog | eawins 1) the device 13 selects the operating point along the linear coordinate. The control circuit 14 synchronously operates the reversing motor 2 and the reversing counter 10. The engine begins to rotate and the counter operates on the addition of pulses. At the same time, the photodisk 7 begins to rotate and the carriage 5 moves. The luminous flux from the light bulb 8 passes through the disk in the disk to the photosensor b, generating pulses that are counted by the counter 10, the output of which is connected to the print visual counting unit or data entry in the computer. In addition, the tally of the counter 10 is also related to the logic circuit 11, which cpajjfiHBaeT the current readings of the counter with the program value set at the master device 13, at coincidence

Compressing the result of testing with a predetermined value, logic circuit 11 generates a pulse that is supplied to stop the engine 2 and to the initial state unit 15 associated with the input of the control circuit 14. The output signal-from the initial state block 15 of the control circuit 14 returns to the initial (zero) state. With this, it is prepared to receive your commands to transmit the probe in any direction.

The present invention eliminates the independent operation of the control circuit, eliminates malfunctions and 5 errors during measurement, and thereby provides an increase in the accuracy of the registration of the linear displacement.

Claims (1)

1. USSR author's certificate 35 377623, class, G 01 D 3 / 00,28.12,70.