SU451988A1 - Pneumatic pulse generator - Google Patents

Description

The invention is intended to impart pneumatic signals of a predetermined duration. with a given chabtotoy c can be used in pneumatic automation systems, in self-contained devices, or in elements of complex computer control and monitoring systems.

Known generators of pneumatic iltuls containing elements AND and OR, capacitance, choke and power supply are known. A disadvantage of the known devices is the complexity of tuning, since for the ratio of the pulse duration / and the pause inside the clock when changing the frequency, two parameters need to be adjusted simultaneously.

The aim of the invention is to eliminate this drawback.

The goal is achieved by those. That the proposed generator contains two prohibition elements, the input of the first of which is directly and the input of the second through the choke is connected to a power source connected via the choke to the first vod of the And element, the conclusions of the second element

The element and the element And are connected respectively to the capacitance and the first input of the element OR and the switching off input of the first element: prohibition. The output of the OR element is connected to the inclusive input of the first prohibition element, the output of which is connected to the generator output, the second inputs of the OR, AND elements and the switching off input of the second prohibition element.

The drawing shows the scheme proposed

device.

% - - - -.

The generator consists of a prohibition element 4, the input of which is connected to the input of device P, an element of prohibition 2, an element FROM

BH

and or 4, alternating throttle 5, capacitance-D and 7.

The generator works as follows.

Power from the input device P post.

It is fed to the input of element 1 and through a variable choke 5, elements 2 and 4 to the switching input of element 1. Through the gap BpeNfeHH, given by the variable throttle 5,

The f element is turned off. The signal from its output and the output of the device P

t

out

to the second input of the element OR 4, prohibits the passage of the signal through the prohibition element 2 and allows the release of the signal from the input of the device P through a variable choke 5, element 3 to the switching input of the prohibition element 1. When pressure reaches the switching off input of the prohibition 1, the sufficient for idle

at the output of the device P. out

Subject matter

Pneumatic pulse generator containing elements AND and OR, capacitance chokes / and power source, about and for the reason that, in order to expand the scope of application, it contains two prohibition elements, the input of the first of which is directly and the input of the second through the choke ; The sella are connected to a power source connected via a choke to the first input of the element AND, the outputs of the second prohibition element and the element AND are connected, respectively, with the capacitances and the first input of the OR element and the switching off input of the first prohibition element, the output of the OR element bar, the output of which is associated with the output of the generator, the second inputs of the elements. OR, AND and the switching off input of the second element of the ban.