SU711495A1 - Arrangement for measuring and monitoring characteristics of electronic units - Google Patents

Description

trigger block 3 and key input 4, the second key input 4 is connected to the output of the trigger block being tested

{The output of key 4 is connected to a prohibition pulse generator 5, the output of which is connected to the second input of element 2 I. The output of element I is connected via a discrete delay line 6 to generator 7 of strobe pulses whose output is connected to input b of block 8 of algebraic summation and input a with the output of the key 4. The block 8 of the interlocking summation is connected to the converter 9 of the summed signal, the output of which is connected to the integrating meter 10.

The device works as follows. ,

The generator 1 generates a periodic sequence of test pulses. During calibration, this sequence of test pulses is fed to one input of element 2 and simultaneously to the input of generator 5 inhibit pulses and to the input of block 8 of algebraic summation. From the output of element AND pulses through the discrete delay line b are fed to the input of generator 7 strobe pulses constant amplitude pulses. These strobe pulses are fed to the input b of block 8 of algebraic summation. The summed signal is fed to the input of the converter 9 of the summed signal, to the output of which the integrating meter 10 is connected.

In a discrete line b, delays delay the test signal by. so much so that the output meter 10 fixes the voltage equal to the difference between the amplitude of the pulse and the voltage of the test pulse at a certain level corresponding to the measuring dynamic response.

The magnitude of the delay of the discrete delay line at which this condition is met is the origin of the measurement of the dynamic response of the trigger block.

When measuring or controlling the dynamic response (for example, the switching time at the gate input) of the EC-type counting triggers, the D-type test pulse sequence is fed to one input of element 2 And simultaneously to the input of the tested trigger block 3. From the output of the tested block 3, the signal through the key 4 is fed to the input of the generator 5 of the inhibiting pulses and to the input of the block 8 of algebraic summation. From the output of the element And the signal through a discrete delay line b is fed to the generator input 7 strobe pulses, which forms a sequence of short triple pulses of constant amplitude. This sequence of short strobe pulses is fed to the input b of block 8 of algebraic summation. The summed signal is fed to the input of the converter 9 summed

 signal, to the output of which an integrating meter 10 is connected. In a discrete delay line b, the signal from the output of element 2 is delayed enough so that the output

S meter 10 fixed the accumulated voltage. The amount by which the signal arrives at the input of the strobe pulse generator 7 relative to the reference point is a dynamic characteristic of the switching time at the gate input of the test trigger unit 3.

Claims (2)

1. USSR author's certificate No. 438944, cl. G 01 R 31/26, 03/01/73. 2. USSR author's certificate No. 382032, cl. G 01 R 35/06, 31.05.71 (prototype).