SU472447A1 - An apparatus for comparing a pulse following period with a predetermined norm - Google Patents

Description

one

The invention relates to a pulsed technology and can be used to automatically control the period or frequency of n-pulse and sequences.

Devices are known for comparing the period of the following pulses with a given norm, containing a supporting delay element, triggers, a gate and a coincidence circuit, the inputs of which are connected to the input of the device and the output of the oior delay element, respectively. However, the ethn devices only fix the equality of the duration of the monitored period to the required norm, the specified delay time, and do not allow to receive information about the sign and the magnitude of the period deviation from the norles, which limits their irimeneia.

The purpose of the invention is to obtain output signals, nesui and 1x information about the sign and deviation of the monitored neorodus from a given norm.

With this device, a device divider and a capacitor are inserted, the detector is connected between the differences and the outputs of the first and second triggers, and the middle point of the divider is connected to ground through the capacitor, while the inputs of the first and second triggers are connected to the valve of the delay element accordingly, the input of the valve is connected

to the third trigger of the delayed-delay iy delay element successively connected, the fault inputs of the first n second TpisrrepOB are connected via the delay element 1 to the output of the common circuit, two inputs of which are connected to the single outputs of the first n second trigger.

The drawing shows a functional diagram of the proposed ycTpoiicTBa.

The device consists nz ventnl 1, the support element delay -2. additional delay elements 3 n 4. two triggers 5 and 6, a full-length trigger 7, a splitter and a jumper consisting of 8 n 9 rezptorov and connected to the opposite outputs of the triggers 5 n 6, a capacitor 10, included: - between the middle point of the splitter and grounded I1NNOY. The li scheme 11, two KOTOpoii inputs are connected1 to the single outputs of flip-flops 5 and 6. And the output through delay element 4 is connected to the fault inputs of the same flip-flops. Wire input 1 and switch: in series with Tp irreir 7 on delay element 3, the input of which is connected to the input of the device.

The device works in the following way.

The trigger 5 is switched directly by the input pulses, and the trigger by 6 pulses, passed 11:.: N through the delayed reference element. PRN equality controlled

period of a given norm, it is determined by an e. my supporting element of delay 2, triggers 5 and 6 are not canceled simultaneously, but the potential of the midpoint of the divider does not change, i.e. the output pulse is absent. At non-simultaneous triggering of the 5 n 6 triggers, corresponding to the deviation of the controlled neorod from the specified norm, at the midpoint of the divider, an impulse arises, the polarity of which is determined by the trigger that triggered earlier and, therefore, the sign of the specified deviation, and the duration is determined by the magnitude of this deviation .

With the capacitor 10 iomoshi, the duration of said pulse is converted into an amplitude value of the output signal; In addition, the use of this capacitor contributes to the interference of the device's stability, in particular, the elimination of the false alarm signal; 1a with a controlled Nernod norm, the possible identi fi edity of the characteristics of the triggers 5: G.

After receiving Bij atiuoro PMI triggers 5 and G, returning to the reset state nmiulse) n reset, sinl, from the scheme sotpasnsh 11, fpks1fu OP1s 1 ne | Without j.ieMCHT, delay -1, the ministry of .i.fii, and jsi or (j () sup1, is the last dump.

) 0 1 and 1: 1 1 1 1 SO:; 1 1, M1 delay delay 3 p Trng ing 7 obspechnr, elimination of the initial false output pulse, due to the absence of the first NM pulse of controlled and consistent r corresponding to, 1 delayed delay. Gate 1, which is initially closed, does not cause the first pulse to trigger 5. This pulse, delayed by element 3 pa

the time, the bolt, the maximum duration of the input pulses, nostunat on the trigger 7 and does not cancel it, but the valve 1 opens. The trigger 7 remains in the re-state and in the future, so that all the pulses of the controlled sequence, started from the second, go to the thrung 5. The device provides for the installation of all three triggers in the initial state and the beginning: impulse, voznkayush, it when the device is turned on.

Subject and d on and e and

A device for comparing the iriod of following pulses with a given norm, containing its on-delay element, trn trnger, valve and common circuit, which differs in that, in order to obtain output 1x signals, and information about the sign of the magnitude of the deviation of the contro norms, a divider is added to it, and a capacitor, the divider is directly connected between different terminals of the nerve and second triggers, and among the point of the divider is connected through a capacitor to the terminal. the second triggers are connected to the vent n and the delay support element, respectively, the input is connected to a centrally connected third trngge;) up to the 1-second element of the delay, the fault inputs of the second and second triggers are connected through the delay element to the output of the same , two inputs of which are connected to only 1 output of the first and second triggers.