SU531280A2 - Non-contact time delay device - Google Patents

Description

one

The invention relates to radio engineering, can be used in automation devices.

Known non-contact time delay device for auth. St. No. 228133.

The purpose of the invention is to reduce the time delay error of the device.

In the proposed device, a second frequency divider is connected to the output of a stable frequency generator in a counter, the conversion rate of the first stage of which is (1.2 - 1.8) 2 times greater than each of the conversion factors of the stages of the first frequency divider, and the conversion factors of the subsequent cascades are equal to the recalculation coefficient of the cascades of the first frequency divider (1 is zero or a positive integer).

The drawing shows the functional electrical circuit of the device.

The contactless time delay device contains a generator of stable frequency 1, frequency divider 2 on and triggers 3, frequency divider 4, the recalculation coefficient of the first stage 5 of which is (1.2 - 1.8) "2 times greater than each of the cascade conversion factors divider 2, and the recalculation coefficient n - 1 of the subsequent cascades 6 are equal to the recalculation coefficient of the cascades of the divider 2.

On the switching field - switch 7 all the conclusions of the frequency dividers are derived, as well as the conclusions of the time relay 8-12. The relay can be any number. With a large number of relays at the outputs of the dividers, you need to install amplifiers.

Contactless time-delay device works as follows.

Assume that relay 8 is turned on. Its impulse input 13 receives pulses from the connected cascade of counter 4 (any cascade can be connected). After the start signal arrives at input 14 of time relay 8, this relay begins to accumulate pulses, and after adding a predetermined number of pulses at its output 15, a signal appears. This signal disappears when the trigger signal is removed from input 14.

The delay is controlled by measuring the number of added pulses in the time relay and

By switching off the pulse input of the relay to another stage, frequency divider 2 or 4.

Thus, the introduction of a second frequency divider into the device makes it possible to INCREASE the accuracy of time exposures.

Claims (1)

Invention Formula Contactless time delay device for auth. St. No. 228133, characterized in that, in order to reduce the time lag error, to the output a stable frequency pulse generator is connected to the second frequency divider on the counter, the conversion factor, the first stage of which is (1.2-1.8) 2 times larger than each of the conversion factors of the cascades of the first frequency divider, and the conversion factors of the subsequent stages are equal to the conversion factor cascades of the first frequency divider (I is zero or a positive integer). During the examination, the author was taken into account. St. №228133, cl. N OZ K 17/26, 11.O4.65.