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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| Övriga upphovsmän: | , |
| Sammanfattning: | 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. |
| Språk: | engelska |
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2018
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| Länkar: | https://doi.org/10.1051/matecconf/201815801020 http://earchive.tpu.ru/handle/11683/52919 |
| Materialtyp: | MixedMaterials Elektronisk Bokavsnitt |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659426 |