SU898361A1 - Device for seismic acoustic prospecting - Google Patents
Device for seismic acoustic prospecting Download PDFInfo
- Publication number
- SU898361A1 SU898361A1 SU772557574A SU2557574A SU898361A1 SU 898361 A1 SU898361 A1 SU 898361A1 SU 772557574 A SU772557574 A SU 772557574A SU 2557574 A SU2557574 A SU 2557574A SU 898361 A1 SU898361 A1 SU 898361A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- signal
- input
- adder
- attenuator
- zero
- Prior art date
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- Geophysics And Detection Of Objects (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
tt
Изобретение относитс к устройств-ам дл сейсмоакустической разведки подземных неоднородностей и может быть использовано в аппаратуре межскважинного прозвучивани дл вы влени зон повышенного звукопоглощени , определени элементов их залегани , размеров звукопоглотителей, решени р да других геологических и инженерных задач.The invention relates to devices for seismoacoustic reconnaissance of underground heterogeneities and can be used in interwell sounding equipment to identify areas of increased sound absorption, determine the elements of their occurrence, the size of sound absorbers, and solve a number of other geological and engineering problems.
Известно устройство, снабженное блоком синхронного накоплени сигналов , включающим, фотонакопитель на базе электронного осциллографа 1.A device is known that is equipped with a unit for synchronous accumulation of signals, including a photo accumulator based on an electronic oscilloscope 1.
Недостатки этого устройства - значительна трудоемкость процесса фотонакоплени , низка помехоустойчивость и зависимость оптимального режима выделени сигнала из помех от экспозиции.The disadvantages of this device are considerable laboriousness of the photo accumulation process, low noise immunity and the dependence of the optimal mode of signal extraction from the noise on the exposure.
Наиболее близким техни 1еским решением к предлагаемому вл етс устройство , состо щее из генератора, источника и приемника упругих колебаний.The closest technical solution to the present invention is a device consisting of a generator, a source and a receiver of elastic oscillations.
усилител и преобразовател сигналов в импульсы перехода через нуль, накопител сигналов, использующего их амплитудные и фазовые признаки, содержащего сумматор и счетчик импульсов 12, an amplifier and a signal converter into zero-crossing pulses, a signal accumulator using their amplitude and phase characteristics, containing an adder and a pulse counter 12,
Недостатком этого устройства с точки зрени сейсмоакустических исследований вл етс то, что по данному способу нельз определить амплитуду сигнала А, а можно .определить лишь соотношение сигнал - шум АДГ. Дл определени амплитуды сигнала необхо димо дойолнительно измер ть среднеквадратичное значение шумаСУ . Кроме того,, при использовании результатов наблюдений по данному способу, получаемых в виде гистограммы квантованных фазовьк выборок, усложн етс опе ратийна обработка информации.The disadvantage of this device from the point of view of seismoacoustic studies is that using this method it is impossible to determine the amplitude of signal A, and it is possible to determine only the signal-to-noise ratio of ADH. To determine the amplitude of the signal, it is necessary to measure the rms value of the SPM. In addition, when using the results of observations in this method, obtained in the form of a histogram of quantized phase samples, it becomes more difficult to quickly process information.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772557574A SU898361A1 (en) | 1977-12-20 | 1977-12-20 | Device for seismic acoustic prospecting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772557574A SU898361A1 (en) | 1977-12-20 | 1977-12-20 | Device for seismic acoustic prospecting |
Publications (1)
Publication Number | Publication Date |
---|---|
SU898361A1 true SU898361A1 (en) | 1982-01-15 |
Family
ID=20739106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772557574A SU898361A1 (en) | 1977-12-20 | 1977-12-20 | Device for seismic acoustic prospecting |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU898361A1 (en) |
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1977
- 1977-12-20 SU SU772557574A patent/SU898361A1/en active
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