SU938248A1 - Device for measuring time interval fluctuations - Google Patents

Description

one

The invention relates to radio measurement.

A device is known that permits the measurement of time-lapsed phgo-octations, containing forcovatopeople pulses, a reference frequency generator, a selector, a delay, an AND and OR census blocks, counters, time registers and a memory block l,

The disadvantage of such a device is its lack of quality.

The closest in technical essence to the invention is a device containing a channel daemon, each of which is a vertical and a low limiter, the inputs of which are connected to the internal busbar, w {a transformer amplifier, a limiter, a trigger, one of which BxoAfoe through an adjustable the delay is connected to the output of the first / channel, and the second input of the trigger from the output of the LRM of the second channel, the duration of the transmitter. containing line delays

adder, limiters and rasadirite.

However, this device will not get enough frequency range and sufficient accuracy.

The purpose of the invention is to expand the frequency range and higher insens - tagnost.

The goal is set to reMt that a device containing two measuring channels for transmission of which is composed of a message from the bottom to the bottom of the baseline, two-way transfer signal and a push-pull circuit is set at the bottom level, a two-way transfer signal and a distance signal is set at the bottom level, a two-way transfer signal is sent.

Swarm - EzglShshshepey on evrpku lu nvzhv level shffrevvoshpovs tshyuformatsts, vvuchuyy nocnenciB tepno, uyytsicha about shgran chtchdts, trvgg ger, odvn whose input peo-dance with the move pepepe-pe-trans, ch-chpdts, pevshey, herv, ovnn the input of which is connected with your way pepepe -pe The Serpentine Vaval Serpent, RSCYJS | LYMULLY NDU AADI ACCESS, is available with the output of the SATVPtep -Gaspucht of the first meter-type channel, and the discriminator of the duration, the input of which is connected to the output of the trigger, is inputted to the additional channel for the duration of the trigger, the input of which is connected to the output of the trigger, is inputted to the additional channel for the duration of the trigger, the input of which is connected to the output of the trigger, is entered to the additional channel of the junction cable, the input of which is connected to the output of the trigger; pulses, the inputs of which are connected to the outputs of the duration discriminator, whose auxiliary input is connected to the trigger output through an additional adjustable delay line, the second input of which through the first switch is connected to the output of the amplifier limiter of the first measuring channel and the output of the first adjustable retainer, and the input of the limiter amplifier of the second measuring channel is connected via a second switch with the corresponding outputs of both differential transformers, and also because the discriminator of duration contains a partitioned delay line and N blocks of formation, each of which consists of a series-connected adder, a limiter, and an output stage, the output of which is connected to the output of the discriminator litep nose-g-w, wherein the input sekdionirovanioy linzai delay coupled to the second input of the discriminator duration, the first input of which is connected to first inputs of adders gvsees, second inputs connected to the terminals kotorps partitioned delay line. The drawing shows a structural electrical circuit of the proposed device. The device contains two measuring channels 1 and 2 each of which consists of the limiter 3 on the upper level, the limiter 4 on the lower level, the differential transformer 5 and the amplifier-limiter 6, trigger 7, adjustable delay lines 8 and 9, switches Yu, 11, multichannel discriminator 12, counter 13 pulses. The multichannel discriminator consists of a sequenced line 14 zaderiosh and 14 blocks 15-1, ..., 15-N of the generator, each of which consists of an accumulator 16, a limiter 17 and an output stage 18.

The signals are fed to the input bus 19 and 2O.

The principle of operation of the device is as follows.

The studied pulses, the fluctuations of the duration of which (A C) must be measured at a given level {)

but the length of the measured spurious, the duration of which is determined by the expression:

Claims (2)

DeI — the number of pulses at the output of the discriminator 12, which is determined, is fed to the input of the limiter 3. Restricted; From the top to the specified measurement level (UmAA), the pulses are fed to the limiter 4. The lower limit level is chosen so that the output of the limiter 4 produces nearly rectangular pulses with a duration equal to the duration of the input pulses at the specified measurement level. These pulses are supplied to a transformer 5 with two secondary windings (not shown), from which different polarity pulses are taken. The pulses on the voltage from the first output winding of the transformer 5 are fed to the amplifier-limiter 6, with which the pulse corresponding to the leading edge of the measured pulse is extracted. This pulse is delayed in line 8 by the time t and is fed to the input of trigger 7, tilting it to a new stable state. The voltage pulses from the second winding of the transceiver 5 are applied to the amplifier-limiter of the second channel with the help of which the selected pulses corresponding to the trailing edge of the measured pulses. These impulses are fed to the second input of the trigger 7, tilting it to its original state. As a result, at the output x of the burner, impediments are obtained whose duration is less than the impedance of the input pulses, and the fluctuation value is equal to the absolute value of the instability of the length of the input impulses. The formed trigger impulse is fed to the inputs of the adders 16 of the discriminator 12 and to the input of line 9 from the output of which, delayed for a time commensurate with the pulse duration of the termster, the signal is fed to the input of line 14. Delayed in series, ... Each of the outputs of line 14 is fed to the input of the adder 16 of its block 15-N opening spacing 12. As a result, the outputs of the adders 16 appear shortened pulses with discreteness in time equal to LTS / the number of which is directly proportional to the size of the measured inter ala (at the maximum value of the measured time interval it is equal to the number of sections of line 14, the shortened pulses from the outputs of summatch 16 are fed to the inputs from anichithei 17, with BbixojiOB which the number of impulses is counted by counter 13. The difference between the pulses between two measurements at the output of the discriminator 12 is characterize the value n of the stability of the measured time interval, the absolute value of which is determined by the expression HecT-jl H..cu) / whereI and Mt42. - the number of pulses at the output of the discriminator 12, measured by the counter 13 during the first and second measurements, respectively. Other modes of measurement of fluctuations of time intervals (the playback period, the playback between the pulse fronts of two different periodic sequences, etc.) are particular cases of the considered operation example and are performed using the input bus 2O and (or) setting the switches to the corresponding positions. The use of vp & AeeiabJK fluctuations for the duration of fluctuations of the number of signals from the output of the discriminator 12 makes it possible to eliminate the dependence of the parameters on both the characteristics of the trigger and on the shape of the created trigger pulse. This allows the rasshofvggy ranges of temporal fluctuations of the fluctuating time interval A up to the durations determined by the eaaer name of the line 14 of the discriminator 12. Using the microswitch and zyo royusi as etals oyu with one ovvakovy time of each section of the section, you get a time rate of 88 hours per second. with errors that are equal to the time of the delay of the delay line, then there is a delay - with the delay line with the sections providing the aadrkha in units of nanoseconds, it allows fluctuations of fluctuations of the time line n "units are applied up to a CDMS. The formula is invented in 1. Device for measuring the fluorescence interval, containing 4S6 two measuring channels, (from) which consist of subsequently connected upper and lower limiters, a dvdffersialny transformer and an amplifier — a transducer, and the second one consists of limiters on the upper and lower levels, dnfereshshchapnsgo transfogilator, connected in series, and usshstelf-sifanichitel, thrggg, one input of which is with the output of the amplifier of the limiting amplifier of the second measuring channel, p a delayed delay line, the input of which is connected to the output of the single amplifier of the first measuring channel, and a discriminator of duration, the input of which is connected to the output of a trigger, characterized in that, in order to expand the frequency range and increase the sensitivity, the additional adjustable line is entered into it delays, two switches and a pulse counter, the inputs of KOTqporo are connected to the discriminator outputs of the duggernost, the additional input of which is connected to the output via an additional adjustable delay line Trigger vl trigger, the second input of which h) The first switch is connected to the output of the usable limiter of the first industrial channel and the output of the first adjustable gate line, and the EOSOD learns that the second measuring channel is limited to the corresponding outputs of both transformers. 2. The device according to claim 1, which is designed to discriminate against a single sectional section of the global line on the W blocks of the FSM, each of the KOTqpboc complies with the latter, including an adder, an output limiter, and an output pin. , the output of which is) SoeDeshev s in p: odo daoK1vminatora dp ppepnos g, and the input of the sekivyrsnaya i nvv zvid1iakn soyd € And with the BTqpbtM input daskkkmvnatora dp t € w w nosHE,. which pokochochvvdd to the conclusions of the Northwestern delays. The source is in a format. n | eBsn№ie in the form of a 9ksppe | 7gkze 1. Autofyyu avdeppestvo SSSSSR №448427, ll.v 04 F 1O / OO, 12.p5.75. :. Lat RS Oy Oshdedelsgvo USSR N8 343248, “l. Q O4 F 1O / OO, Ov.11L1. ife i s Gt. I / g