SU1116408A1 - Device for geophysical exploration - Google Patents

Abstract

THE DEVICE OF THE FIRMWARE DIFFICULTURE, containing 1: (its serially connected sensor unit of the electromagnetic and seismic fields, the first switchboard and the preamplifier unit, the consecutively connected converter, logic, filtering and display units, as well as the ring storage units, mode settings, communications and magnetic recorder connected to a block of logic, the emitter of the electromagnetic field, connected to the output of the generator, is connected first to the outputs of the blocks of task and communication, so that in order to reduce Yeni ko.iyskoy of equipment and popglshen productivity, entered into it after the plug) connected unit forming a b.kg pinging signal and first cxcNia II, the second circuit And, the second co fytlt (p and a demultiplexer, with the second second input first (I connected to a mode setting unit, a} r: .1input - with a control input of the first KON; MyTator, logic block is connected to a power generating unit} 1kiruya1: 1st subsignal, two inputs of which coeraiHefH i with the SS generator and preamplifier unit The inputs of the second -1 are connected respectively to one sensor. The electromagnetic field and the mode setting unit, and the output are connected to the communication unit, the power inputs of the booster amplifiers are connected to the first group of inputs of the second switch, the outputs of which are connected to the input of the converter unit, and the second group of inputs of the second switch are connected to the output of the demultiplexer whose input is With the output of one of the amplifiers of the preamplifier block, the control input of the second switch is connected to the mode setting unit.

Description

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gheiyoratora, connected with HI.; block of the chadanin of regimes and sp / .. his own construction has limited. djy nktsional1) 1e along with and og: ti, p |) urlks1 and obepe-1nva w / nkokuyu 1 pgliz O 1Igel; A bit of labor. Cs.p invention of reducing l oli-; eB- | equipment, the increase in labor productivity, which is especially important in the methods of geoemoedeukn and 1P ductive electrical prospecting, both the specific capabilities of the analyzer, as well as selective detection of: • material; 1 objects: contraction, yes. highly specialized blocks

ruktsts fig. Z znyury, no:: cn5iio :: i, -ie e; h) work in the mode of electrical prospecting. The device contains a PocJ emitter-connected seismic sensors and receivers of the electromagnetic field 1, the first switch 2, (elox preamplified 3, the second 1A switch, the converter block 5, the logic block 6, filtering block 7, the display block 8, and so, sequentially connect}

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electromagnetic field emitter 9, generator 10, blanking signal generating unit 11, first circuit 12, mode setting unit 13, the first group of inputs of the second switch connected to the outputs of the preamplifier unit, and the second group of inputs to the output of the demultiplexer 14 whose input is connected with the output of one of the amplifiers of the preamplifier unit 3, which is connected to the blocking signal generating unit 11 connected to the logic unit 6, to which the magnetic recorder unit 15, the ring storage unit 16, the unit are also connected 17 communication and the mode setting unit 13, wherein the mode setting unit 13 is connected to the generator unit 10, which is connected to the communication unit 17 connected to the output of the second AND circuit 18, one input of which is connected to the task setting unit 13, and the second is from one of the electromagnet field receivers, in addition, the first circuit 12 is connected to the control input of the first switch 2, and a 19 pt.i block provides power to the entire device.

The device can operate in two modes; B relshme seismic and electrical exploration.

When operating in the mode of electrical prospecting by the method of transient processes (MPP) with the selectivity of the detection of metallic objects of arbitrary shape and arbitrary orientation in space, the device works as follows.

According to the signals of the setting mode a 13, the second switch 4 connects the output of the demultiplexer 14 to the entire conversion unit 5. The first circuit And 12 opens and the second circuit 18 closes. After turning on the device, the magnetic tape in the magnetic recorder 15 begins to move, and after dialing the nominal The speed of the logic unit 6 through the mode setting unit 13 grants permission to start the generator 10, which in this case is pulsed. The latter provides alternate supply of pulses 20, 21 and 22 of the current (Fig. 2) in the framework of the radiator 9, which contains several sensors of the electromagnetic field. Electromagnetic fields thus excited in a controlled space cause arising4084

the presence of eddy currents in metallic objects. Reception of secondary fields 1 of the rest by the frames of the sensors-receivers of the electromagnetic field in the pauses between the primary exciting fields (according to signals from the blanking signal generating unit 11, which is synchronized by pulses 23 (Fig. 2) of the generator 10, by connecting the 24 time (Fig. 2) of the corresponding receiving frames to the input of the block preamplifiers 3. In this case, the selection of the information signal 24 eddy currents (Fig. 2) from the resulting input signals 25, 26 and 27. Thus, block 11 forms a blancier signal 28,

0 is the controller for the device in this mode. The amplified information signal is sent to the demultiplexer 14, which duplicates it on K in -v-lines and in maturity

5 of the second switch 4 transmits it to the converter unit 5. In transducer block 5, the signal under investigation (i) is measured and digitized by sequential polling of all

Q; To the outputs of the demultiplexer. At the same time, signal 28 (Fig. 2) of the final process of digitizing all K samples of the signal under investigation, coming from the preamplifier block 3, closes the first switch 2, stops scanning the signal to the input of the preamp block 3. After this, 1 digital readout is performed. signal and the registers of the converter unit 5 and transmitting them through the logic block for the transmitter to the tape of the magnetic recorder 15. Then, using the signal 29 (php 2) of the block 11 generating the blanking signal coming through the circuit 12 and the op. The cycle of operation of the device is repeated.

The information array thus formed can then be used to analyze the signal x (t) under investigation on a computer by one of the known methods, for example, by decomposing it into components.

By the form of the solution U vot), which is a composition of bell-shaped functions (of the type σ-functions)

the corresponding amplitudes, cpl P1, relative to each other along the axis of the information parameter d-, carry out an operative analysis of geological and geophysical information with high performance in the CC, using highly efficient data interpretation algorithms for this purpose. In the device, it is possible to temporal selectivity of input signals according to the commands of the blanking signal generating unit in seismic mode.

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Claims (1)

A DEVICE FOR PSYPHYSICAL EXPLORATION, containing a series-connected block of sensors of electromagnetic and seismic fields, a first switch and a block of preamplifiers, series-connected blocks of the converter, logic, filtering and indication, as well as blocks of a ring drive, mode settings, communications and a magnetic recorder connected to the logic block ,, an electromagnetic field emitter connected to the output of the generator connected to the outputs of the mode and communication setting units, which means that, in order to reduce I am the quantity of equipment and increasing labor productivity, a block of forming a B. chunk signal and a first circuit II, a second circuit I, a second switch and a demultiplexer are introduced in series with it, while the second input of the first circuit And is connected to the mode setting unit, and the output is with the control input of the first switch, the logic unit is connected to the Formation unit of the blanking signal, the two inputs of which are connected to the generator output and the preamplifier unit, the inputs of the second circuit And are connected respectively to one the electromagnetic field sensor and the mode setting unit, and the output is to the communication unit, the outputs of the preamplifier unit are connected to the first group of inputs of the second switch, the outputs of which are connected to the input of the converter unit, and the second group of inputs of the second switch is connected to the output of the demultiplexer, the input of which is connected to the output of one of the amplifiers of the preamplifier unit, the control input of the second switch is connected to the mode setting unit.