SU1406779A2 - Tolerance inspection device - Google Patents

Abstract

The invention relates to a radar measuring technique and can be used in control devices in which the determination of the compliance of the parameters of the monitored impulse with a predetermined tolerance field takes place. The invention improves the reliability of monitoring the parameters of pulses by fixing the dip of the fronts of 1 adapters. For this purpose, the fourth trigger 15, the second element OR 16 and the pulse counter 7 are additionally introduced into the device. The drawing also shows input bus 1, delay element 2, comparators 3-6, reference voltage source 8, triggers 9, 10 and 12, first element OR 11, output bus 13, reset bus 14. The device, in addition to monitoring the parameters of the pulses, allows controlling the transient process on the fronts of the pulses with minor instrumentation1,1x costs. The quality of the control is determined by the speed of the counter. 3 il. i (L

Description

1H

The invention relates to a radionimeter technique, can be used in control devices in which determination of compliance of parameters of a controlled pulse to a predetermined tolerance field takes place, and is additional to the author. St. 843243.

The purpose of the invention is to increase the reliability of monitoring pulse parameters by fixing the dips of the pulse fronts.

Fig. I shows a structural electrical circuit of the device; FIGS. 2 and 3 are timing diagrams explaining the operation of the device.

The device (figure 1) contains input 1 and 1, which is connected to the input of the delay element 2, with the first inputs from periogch through the fourth comparators 3-6 and with the clock input of the counter 7 pulses. The first to fourth outputs of the source 8 of the reference voltage are connected to the second inputs of the first to fourth components 3-6, respectively. The third inputs of the comparator 3 and 4 are connected to the corresponding outputs} 1) Yu of the first 9 and second of 10 triggers. The outputs of the Comparators 3 - 6 and the counter 7 are connected appropriately from the first to five inputs of the first element K P 1 1, the output of which is 01-o with 1 connected to B-nxl1, h, ohm of the third trigger 12, pyhod (connected with and |. On the first liiiiiioii I i, the R-in is from iiinHoii 14 sb1Yuga and S-BXO- the house is the fourth | with the reset input of gchotchka 7, and the second input - with} M1 | go-1 of trigger 10, the first R-input is connected to the first R-input of the grigger 9, Tina 14, quarter nchody of Comparators 3 and 4 and the third and 1 moves compar Ator 5 and 6.

The second K-trigger trigger 10 connects the first B, 1x1 to ojieNienTa 2 of the caddle and the R-input of the trigger 15. the output of the delay element 2 is L-connected to the S-BXO trigger house 9, the third output - with the second R-input of the trigger 9, and Fourth way out - with S-BHOD trigger 10.

The device works as follows.

Before starting work on 14, a pulse is applied to triggers 9-10 and comparators 3-6 and sets them to

0

0

)

0

-e

five

0

five

five

initial state. In this case, the signal from the trigger output 15 through the OR element 16 is fed to the reset input of the counter 7. Controlled pulses along the bus 1 (Fig. 2a) are fed to the first inputs of the comparators 3-6, the input of the delay element 2 and the clock input of the counter 7. the leading edge of the first controlled pulse produces pulses T1 + T4 at the outputs from the first to the fourth delay element 2 (Fig. 26, c, d, e). Impulse T1 (Fig.26) determines the controlled period and the beginning of the leading edge, RMnyjibc T2 (Fig.2b) - the end of the leading edge, the pulse of the specification (fig.2g) - 1 start of the trailing edge, the pulse T4 (fig.2d) - condensed the back front of a controlled 1gmg1ulsa. The pulses T2 n TZ form a support pulse on trigger 9 (Fig. 2e), which is fed to the third input of the comparator 3 and determines the duration of the controlled pulse at its tip. T1 and T4 pulses form a polling pulse on G1 and 1 er 10 (Fig. 2g), KOTophu i is fed to the third input of the computer 4 and determines the duration | ; c-) impulse impulse at its base. In the case of the second inputs of the com- plexiaiaia-ropoB 3 - 6 from the source 8 reference voltages are supplied potentials,) unit to) 1: and the amplitude of the countercontrol, impedance, residual} First voltage, amplitude positive 1x and negative emissions.

Cho us. -Yuppu control for the time of the section 1111: go,) between T1 and T2 of the potential-impulse d (t.st: en is misaligned from the osai-o4HOj-o voltage to the amplitude 1N / 1chenn, l for the time of the rear dipoHTa 1 between TK and T4 is vice versa.In case of violation of these conditions, the coordinators work, the trigger 12 is set or the trigger 12 is set on the bus 13 v1-the malfunction signal is generated: p1.

15 the first 11 seconds after the pulse on the bus 14 to the counter 7 is given a signal to the reset input (FIG. 2z) and the first pulse from the bus 14 to the counter 7 does not pass.

After the occurrence of the-pulse T1 from the first output of the element 2, the delay 15 is set to the state O and the signal of the logical O is removed from the output of the element NPI 16 and correspondingly} U from the reset input of the counter 7. The impulse from 1 PINA 1 (Fig. Over) arrives

on (: chety |, 1 and ikhol: chetchik 7. But the impulse of TA trsh ger 10 is set up. piplets and state 1 and cherech), | (.meet I.CH 16 (fig. 3 b) is set: 1ig. (. t counter 7 g and zero state. According to T1 trigger 10 is set to the state O and the reset signal is removed from counter 7, and so on.

When a pronalol appears on the non-rare side of the rear edge of the immersion (Fig. 3a), they are calculated by the counter 7 as additional 1.1 e pulses. At the input of, for example, the second bit of counter 7, a signal appears which, through the OR OR 1 i switch, sets trigger 12 to state 1, and B1.1goods 1 1 13 at a non-playability signal.

Thus, the proposed VCT-poiicTBO, in addition to co-operation of the pulse parameters, allows controlling the transient process on the fronts of the impulses with a small instrumental cost. The quality of the control is determined by the speed of the counter.

Claims (1)

Invention Formula Device d: 1 tolerance control on aut. St. To 8A3243, characterized in that, in order to increase the reliability of monitoring the parameters of the pulses due to the fixing of the dips of the fronts of the pulses, the fourth trigger, 15, is entered into it (FIG. 2b), connected to the IIIHHOI I reset, the second element of the IHR and the R-input pulse counter, the output of which is connected to the fifth input of the first CT1I circuit, and the clock input to the input bus, and the fourth input of the fourth trigger is connected to the second R-input the trigger, the output of which is connected to the second input of the second element IT11, 20 20 2 fig.z