Inaccuracy of acoustic measurements in dual-frequence method of sounding; MATEC Web of Conferences; Vol. 158 : Space Engineering
| Parent link: | MATEC Web of Conferences Vol. 158 : Space Engineering.— 2018.— [01020, 5 p.] |
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| المؤلف الرئيسي: | |
| مؤلف مشترك: | |
| مؤلفون آخرون: | , |
| الملخص: | Title screen The article describes the new method of defining time coordinate of the moment when echo-impulse comes. The principle of the method consists in consecutive sounding of the (head) well with the signals of different frequencies and analysing the received reflected signals. The article shows the graphs with dependence of measurement inaccuracy when the operating threshold of the comparator for different ratios of frequencies changes. If the comparator works out in different (in order) periods of the received signals then measurement inaccuracy will be 1-2 periods of the carrier frequency. |
| اللغة: | الإنجليزية |
| منشور في: |
2018
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://doi.org/10.1051/matecconf/201815801020 http://earchive.tpu.ru/handle/11683/52919 |
| التنسيق: | الكتروني فصل الكتاب |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659426 |
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| 200 | 1 | |a Inaccuracy of acoustic measurements in dual-frequence method of sounding |f M. A. Kostina, Yu. V. Shulgina, A. I. Chudinova | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 30 tit.] | ||
| 330 | |a The article describes the new method of defining time coordinate of the moment when echo-impulse comes. The principle of the method consists in consecutive sounding of the (head) well with the signals of different frequencies and analysing the received reflected signals. The article shows the graphs with dependence of measurement inaccuracy when the operating threshold of the comparator for different ratios of frequencies changes. If the comparator works out in different (in order) periods of the received signals then measurement inaccuracy will be 1-2 periods of the carrier frequency. | ||
| 461 | 1 | |0 (RuTPU)RU\TPU\network\4526 |t MATEC Web of Conferences | |
| 463 | 1 | |0 (RuTPU)RU\TPU\network\27949 |t Vol. 158 : Space Engineering |o VI International Forum for Young Scientists, April 26-28, 2018, Tomsk, Russia |o [proceedings] |f National Research Tomsk Polytechnic University (TPU) ; eds. V. N. Borikov [et al.] |v [01020, 5 p.] |d 2018 | |
| 610 | 1 | |a электронный ресурс | |
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| 610 | 1 | |a точность | |
| 610 | 1 | |a акустические измерения | |
| 610 | 1 | |a двухчастотные методы | |
| 610 | 1 | |a зондирование | |
| 610 | 1 | |a эхо-импульсы | |
| 610 | 1 | |a сигналы | |
| 610 | 1 | |a компараторы | |
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| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа неразрушающего контроля и безопасности |b Отделение электронной инженерии |h 7977 |2 stltpush |3 (RuTPU)RU\TPU\col\23507 |
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