SU1264136A1 - Device for measuring time of staying signal within the given amplitude range - Google Patents

Abstract

The invention relates to a pulse technique. It can be used for analyzing random processes in systems for monitoring the state of technical and biological objects, as well as for automating the interpretation of gravity and seismograms. The purpose of the invention — extending the functionality of the device — is achieved by expanding the boundaries of the tolerance field. For this, an arithmetic unit 10, a register 11, a delay element 13, a BANNER element 7, a source 4 of regulated potentials, threshold elements 5 and 6 are additionally entered into the device. In addition, the device contains a generator 1 of frequency pulses, And 2 and 3 elements, counters 8 and 9 pulses, shaper 12 pulses. The analyzer provides measurement of the absolute and relative residence time above or at the boundaries of the tolerance field, as well as sampling sampling. 2 Il. cl

Description

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The invention relates to a pulse technique and can be used to analyze random processes in systems for monitoring the state of technical and biological objects, in particular, to automate the processes of interpretation of gravity and seismograms.

The purpose of the invention is to expand the functionality of the device by expanding the boundaries of the floor tolerances.

FIG. 1 shows a functional diagram of an apparatus for measuring the time a signal has been in a given amplitude range; in fig. 2 - timing diagrams for the operation of the device.

The device contains a generator of 1 pulse frequency standard, the first element AND 2 connected by one input to the output of the generator 1, and another input to the control bus, the second element I 3 connected by one input to the output of the generator 1, and the other input to the control bus , the source 4 of regulated potentials, the first and second threshold elements 5 and 6, the control inputs of which are connected to the outputs of source 4, and the signal inputs to the input bus, the BAN element 7, the direct input of which is connected to the output of the first threshold element 5, are inverse input - with the output of the second threshold element 6, and the output - with the third input of the second element And 3, the first counter 8 pulses connected by a signal input to the output of the first element And 2, the second counter 9 of pulses connected by a signal input to the output of the second element And 3, arithmetic unit 10 connected by a group of first inputs bitwise with the outputs of the first counter 8, and a group of second inputs bitwise with the outputs of the second counter 9, register 11 connected by setting inputs bitwise to the outputs of the arithmetic unit 10, form There are 12 pulses connected by the input to the control bus, and an output to the control input of the arithmetic unit 10 and the zero reset input 11, and a delay element 13 connected by the input to the output of the driver 12, and the output to the zero reset inputs of counters 8 and 9.

The device works as follows.

Information on the implementation of the process in the form of a voltage x (t) (Fig. 2a) is fed to the signal input. The source 4 sets the lower xi and upper 2 limits of the amplitude range, which determine the threshold of the first 5 and second 6 threshold elements, respectively. At the same time, at the output of the threshold element 5, a potential of "O at x (t) xi and" 1 at x (t) l {fig. 26), and at the output of the threshold element 6 - “O at x (t) X2 and“ b at x (t) X2 (FIG. 26),

which leads to the development at the output of the element BANCH 7 of the potential “O at (t) and“ 1 at (t) X2 (Fig. 2d). The measurement time is controlled by the control bus (Fig. 2e). If the generator 1 generates pulses with a frequency F const, the element I 2 is open for the duration of the control pulse and the counter 8 records the number of pulses proportional to the value T of its

0 duration, i.e. Ni T / F. In this case, the element 3 is open in periods of time coinciding in time with the control pulse, and in periods of time when the input signal satisfies condition (t) X2 (in Fig. 2e, the time diagram

5 at the output of the generator I, f - at the output of the element And 2, on e - at the output of the element And 3), i.e. Counter 9 records the number of pulses proportional to the time the input signal has been inside the specified amplitude range xi-x2. At the end of the control pulse, elements 2 and 3 are closed, counters 8 and 9 stop, they are fixed, respectively, numbers proportional to the analysis time T (in counter 8) and the time spent by signal 5 in the range xi-x2 (in counter 9). The former 12 generates a short pulse along the trailing edge of the control pulse, which zeroes the register 11 and enters the control input of the arithmetic unit 10, where Tp / T is determined,

0 through the installation inputs of the register 11 is fixed in the latter with a delay in time determined by the arithmetic constant device Ta, and with a delay in time TK () determined by the delay element 13, zeroes counters 8 and 9. The device is ready to repeat the measurement cycle The previously recorded time is stored in register 11 until the end of the next measurement cycle and can be used for indication or further processing. With

If it is necessary to carry out measurements along one range boundary, the threshold element 6 is excluded from the operation; the remaining elements of the device work.

Claims (1)

Invention Formula A device for measuring the time of a signal in a given amplitude range, containing a pulse frequency reference generator, the output of which is connected to the first input of the first element And whose output is connected to the signal input of the first pulse counter, the second element And whose output is connected to the signal input of the second pulse counter, pulse shaper, characterized in that, in order to expand its functionality, an arithmetic unit, register, delay element, the BANKS item, the source of regulated potentials, the first and second threshold elements, the signal inputs of the threshold elements are combined and connected to the device input, and the control inputs are connected to the corresponding outputs of the source of adjustable potentials, the output of the first threshold element is connected to the forward input, and the second the threshold element is connected to the inverse input of the BANCH element, the output of which is connected to the first input of the second element And, the second input of which is connected to the output of the reference generator by the pulse input, and the third input is connected to the second input of the first element I and the control bus, and through the pulse shaper is connected to the control input of the arithmetic unit, the register zero input and through the delay element to the zero inputs of the first and second pulse counters, the output outputs of which are respectively connected with the first and second groups of inputs of the arithmetic unit, the outputs of which are connected to the installation inputs of the register. VU8.2 4Wi