Inaccuracy of acoustic measurements in dual-frequence method of sounding

Bibliographische Detailangaben
Parent link:MATEC Web of Conferences
Vol. 158 : Space Engineering.— 2018.— [01020, 5 p.]
1. Verfasser: Kostina M. A. Maria Alekseevna
Körperschaft: Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Отделение электронной инженерии
Weitere Verfasser: Shulgina Yu. V. Yulia Viktorovna, Chudinova A. I. Alena Igorevna
Zusammenfassung: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.
Sprache:Englisch
Veröffentlicht: 2018
Schlagworte:
Online-Zugang:https://doi.org/10.1051/matecconf/201815801020
http://earchive.tpu.ru/handle/11683/52919
Format: Elektronisch Buchkapitel
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659426

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