SU1411923A1 - Device for registering time-related positions of fluctuating signals - Google Patents

Abstract

The invention relates to radio engineering and can be used in experimental physics and information measurement technology. Purpose; The invention is an increase in the accuracy of fixing and temporal positions of fluctuating signals. The goal is achieved by varying the accumulation time and the time of dissipation of charge in the diode with accumulation of charge with a change in the rise time of the input signal, which compensates for the offset of the moment of fixation of the signal. The device has an input terminal, attenuators 2 and 8, linear inverters 3 and 9, limiters 4 and 10 pulses from the bottom, threshold drivers 5, 7 and 15, delay lines 6 and 11, generator 13 of charge resorption, diode 14 with charge accumulation , output terminal 16. Optimal compensation of the fixation error is achieved by adjusting the magnitudes of resorption currents and accumulation of charge. 2 Il. (L

Description

The invention relates to radio engineering and can be used in experimental physics and information measurement technology.

The purpose of the invention is to improve the accuracy of fixing the temporal positions of fluctuating signals.

The goal is achieved by varying the accumulation time and the time of dissipation of charge in the diode with accumulation of charge when the duration of the rising edge of the input signal is changed, which compensates for the offset of the moment of fixation of the signal

FIG. 1 shows a block diagram of a device for fixing the temporal positions of fluctuating signals; FIG. 2 is a time diagram of his work;

The device consists of inputs: ;; - to terminal 1, first attenuator 2 .. first linear inverter 3, first limiter 4 pulses from below, first threshold driver 5, first delay line 6, second thresholds driver 7, second attenuator 8 a second linear inverter 9, a second limiter 10 pulses from below, a second delay line 11, a charge accumulation current generator 12, a charge absorption current generator 13, a charge accumulation diode 14, a third threshold driver 15, and a 16 terminal.

Input terminal 1 is connected via serially connected first attenuator 2, linear inverter 3 and limiter 4 pulses from below F-- to the second input of the first threshold fhopMHpo switch 5, the first input connected to the first input of the second threshold driver 7 and through the first delay line 6 to the input terminal 1, the second input of the second threshold driver 7 is connected to the input terminal 1 through the serially connected second limiter 10 pulses from the bottom, a linear inverter 9 and an attenuator

8, the output of the first threshold driver 5 through the second delay line 11 is connected to the second inputs of the charge storage current generator 12 and the charge absorbing current generator 13. The output of charge accumulation current generator 12 is combined with the output of charge absorbing current generator 13, the anode of diode 14 with charge accumulation, the cathode of which is connected to the busbar and

five

0

0

Q 5

0

five

the house of the third threshold forwarder 15, its code connected to the output terminal 16 and to the first input of the generator 13 of the resorption current of the charge. The code of the second threshold driver 7 is connected to the first input of the charge storage current generator 12.

The temporary fixation of the signals in the device is carried out as follows.

The input signal (Fig. 2a) is fed to the series-connected attenuator 2, the linear inverter 3 and the limiter 4 pulses from below. As a result, a pulse is weakened K times and bounded below by the value Ugj-p (Fig. 2d). The signal thus obtained is fed to the control input of the threshold driver 5, the second input of which receives an input signal delayed by the delay line 6 at time T (Fig. 26). At the time Lg of the crossing, the sum signal of the threshold level U (j) 5 generate a standard impulse (Figs. 2e, 3).

The position of the fixation point t on the time axis essentially depends on the magnitude; ,,; the duration of the rising front g of the input signal and is almost independent of its amplitude.

Similarly, at the time ty of crossing the threshold level Ug by the total signal obtained as a result of the input delayed signal input to the inputs of the horn generator 7 and attenuated by Kj times (Kj, K,), bounded below by the signal size (Fig. 2c), and Uj ,,, the threshold driver 7 produces a standard impulse (FIG. 2d, g). This pulse triggers a charge current generator 12, as a result of which a diode 14 begins to accumulate, a charge current 1,

This process continues until the output pulse absorbing current of the output pulse of driver 5, delayed by delay line 11 by time (FIG. 2), arrives at the second input. The charge accumulation generator 12 turns off with this pulse, after which the resorption of charge begins accumulated in the diode 14, the current IP generator 13 current

14

resorption of charge (Fig. 2k). At the time t of the accumulated charge dissipation termination t, the shaper 15 generates an output pulse of the device, fixing the position of the input signal on the time axis, and additionally returns to the initial state the charge absorbing current generator 13.

If the rise time T of the recorded signals increases (decreases) the delay t, the start of the imaging unit 5 increases, the time interval also increases (decreases), between the signals of the formers 7 and 5. This increases (increases) the accumulation time and the absorption time of the charge in the diode 14, to the compensation compensated moment displacement t. The optimal compensation of the fixation error is achieved by adjusting the values of the resorption current and accumulation of charge.

Claims (1)

Invention Formula The device of temporal positions of the fluctuating signals, containing the first threshold driver, the first input connected via the first delay line to the input terminal and the input of the first attenuator, the first pulse limiter from the bottom and the first linear inverter, characterized in that accuracy, and it introduced the second delay line, the second and third threshold drivers, the second attenuator, a linear inverter and a low-voltage pulse limiter, a charge accumulation current generator, a charge resorption current generator, and a charge accumulating diode, the first input The second threshold shaper is connected to the first input of the first threshold shaper, the second input of which is connected through the first pulse limiter in series below and the first linear inverter is connected to the output of the first attenuator, the second input of the second threshold shaper is connected through the second connected pulse limiter below, the linear inverter and attenuator are connected to the input terminal, and the output of the second threshold driver is connected to the first input of the current accumulator, the output of which is coupled to the output of the resorption current generator, the anode of the charge accumulating diode, the cathode of which is connected to common busbar, and the input of the third threshold driver, the output of which is connected to the output; Ana and the first input of the rator of the resorption charge, the second level of which is connected to the second input geg: etrac tsh:.: accumulate charge and a second delay line cherech yield cherlogo threshold formation those m1. X 7, AK2-1 / Ogre