SU113965A1 - A device to reproduce the law of equal probability of events - Google Patents

Description

In the production of various laboratory tests, it is often necessary to reproduce the law of equal probability with the issuance of a signal to the actuator.

The proposed device allows to reproduce the law of equal probability.

The device is shown schematically in the drawing. The continuously rotating elevator / moves the ball upwards. Having reached the top of the elevator, the ball falls on the fixed anvil 2, reflected from which it can with equal probability fall into one of the holes b, disk 3, rotating at a constant angular velocity. When the hole of the ball 5 with the ball is aligned with the hole a made in the bottom 4 of the cylinder 5, the ball is lowered into this hole and along the channel 6 moves in the direction of the elevator / 6 has a slope to ensure the spontaneous movement of the ball. Along the way, the ball closes contacts 7 with its weight and makes it possible to fix the value or signal generated by a device.

The contacts 7 control the corresponding device (for example, a relay), when it is triggered, the latching signal is transmitted or transmitted to other elements of the device.

The time interval between the fall of the ball on the anvil and the closure of the contacts depends on which of the disc holes the ball has gone into and what is the angular velocity of the disc taken in this experiment.

The magnitude of this is streaked by a duck; can vary, by law, with equal probability from O to Gz, equal to the time of a complete disk rotation: O in case the ball from the anvil enters the hole in the disk, which coincided at the time of falling with the hole in the bottom of the cylinder and has time to go through these holes in the gutter.

72 if the ball falls into the hole in, slightly displaced forward in the course of the disk rotation relative to the hole o and

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If you do not have time to pass through these holes into the chute, then the ball will enter the chute only after T time, equal to the time of a full turn of the disc.

If TI denotes the time interval between the moment when the ball closes the contacts and the subsequent moment the ball hits the anvil, then the time interval between the closure of the contacts will be t TI + t :, while TI, with m 0; .pah i + 2. .Pri t Go.

The values of TI and TZ are varied by changing gear ratios from a constant speed drive motor to the screw elevator and disc. The change of these ratios is carried out with the inclusion in these kinematic lines of auger gears, gearboxes), selected in accordance with the required parameters.

In order to ensure proper operation of the device, it is installed on the platform, the horizontal position of which is provided by three adjustment screws and two levels located in two mutually perpendicular planes, or one bubble level with a concentric scale.

Subject invention

Claims (2)

1. A device for reproducing a law of equal probability of events, characterized in that, in order to form a series of electrical signals separated by random intervals of time, it is made in the form of a uniformly rotating gear wheel having an anvil in the center to reflect it one of the holes on the periphery of the disk and at random intervals of time feeding it to the gutter hole, in which the contacts are closed, which are closed by a ball passing along the chute. 2. An instrument for reproducing a law of equal probability of events pop. 1, characterized in that, in order to supply a ball from a chute to a tube installed above the anvil, an elevator is installed between the chute and the tube.