SU789813A1 - Voltage extremum and drop meter - Google Patents

Description

The invention relates to electrical measuring equipment and can be used to measure the maximum, minimum values of voltages, the differences between them, as well as cutting voltage values. A device for measuring extremes and voltage level fluctuations is known, comprising two transducers, a comparator, two keys, a differential amplifier and a fl. Recording unit. A disadvantage of this device is its low accuracy. Also known is the meter of extremes and voltage drops of ursun, containing a clock pulse generator, the output of which is connected to the synchronizing input of a reversible counter, the summing input of which is connected to the output of the first comparator, the subtracting input of the reversible counter connected to the output of the Second comparator, the outputs of the reversible counter through the first switch connected with the corresponding inputs of the first element OR, the outputs of which are connected to the inputs of the analog-to-digit converter l2l, the disadvantage of this device Twa is the low accuracy .. The purpose of the invention - improved accuracy. The goal is achieved by the fact that in the extremum and voltage level difference meter, which contains a clock pulse generator, the output of which is connected to the synchronous input of the reversible counter, the summing input KOTOporxj is connected to the output of the first comparator, the subtractive input of the reverse counter is connected to the output of the second comparator, the outputs reverse counter through the first switch connected to the corresponding inputs of the first OR element, the outputs of which are connected to the inputs of the converter analog-to-figure The first and fourth compars of the mountain, seven keys, second, third and fourth switches, three counters, a second electric OR, four memory slots, a delay delay and a control unit, the first input of the first comparator connected to the first bus of the input signal and through the first terminal with the first input of the second comparator, through the second key with the first input of the third comparator and with the first terminal of the fourth comparator, the output of the analogue digit converter is connected via the third key to the second input of the first comparator, through the fourth key and the first memory element with the second code of the second comparator, through the fifth key and the second memory element with the second input of the third comparator, through the Sixth key and the third memory element with the first output bus, through the seventh kpyuch with the second input of the fourth comparator and the input of the fourth memory element, the output of which is connected with. the second bus of the output signal, the output of the fourth comparator is connected to the input of the first counter and to the first code of the second OR element, the second input of which is connected to the output of the third comparator and to the input of the second counter, the outputs of which through the second switch are connected to the corresponding inputs of the first epypement OR, the outputs of the first the counter through the third switch is connected to the corresponding inputs of the first element OR, the output of the second element OR is connected to the input of the third counter, the outputs of which through the fourth com the mutator is connected to the corresponding inputs of the first OR element, the control inputs of the first, third and fourth keys and the first switch are connected to the first output of the control unit, the first input of which is connected to the output of the clock generator, the second input of the control unit 1 is connected to the second bus of the input signal, with the control inputs of the first and second counters, through a delay element connected to the installation input of the third counter and with the third input of the control unit, the second output of which is connected to the control The sixth key and fourth switch inputs, the third output of the control unit is connected to the control inputs of the second, pit keys and the second switch. The fourth output of the control unit is connected to the control inputs of the seventh key and the third switch.

FIG. 1 is a block diagram of an extremum and voltage level meter; in fig. 2 shows an embodiment of the control unit.

The extremum and voltage drop meter contains a 1 digit-analog converter, elements 2 and 3 IL switches 4–7, a reversible counter 8, counters g –I. Elements 12–15, memories, comparators 16–19, keys

20-26, control unit 27, delay element 28, clock pulse generator 29, moreover, converter output

1 is connected via key 22 and element 12 to the first input of comparator 17, through key 23 and element 13c by the output signal bus 13, through key 24 and element 14 to the first input of comparator 19, through key 26 to the first input of comparator 18 and to element 15 , through the terminal 20 with the first input of the comparator 16, the second input of which is connected to the bus 31 of the input signal, through the terminal

21 with the second input of the comparator 17

Claims (2)

1. USSR author's certificate No. 427288, kp. G 01 R 19 / O4, 07.02.72. 2. USSR author's certificate number 345444. class. Q 01 R 19/10, 30.1О.7О (prototype). -four 37 -5 "" J LU 55 3ff 33 3 It h Lri four/ 45 / 4g Fig 2