Measurement error reducing in the ultrasound time-pulse systems

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

9 Цитирования (Scopus)

Аннотация

Ultrasound wave propagation in bounded media results in change of the echo-pulse shape, therefore the use of traditional method of determining of the propagation time of the ultrasound pulse based on use of threshold device (comparator) gives a large error of measurement. To reduce this error the new methods of the determining of echo-pulse propagation time are proposed in this paper. The first method is the method based on the use of two comparators, the second one is the method based on second-order polynomial approximation of the echo-pulse envelope. Analysis showed that the steeper the rising edge of the echo-pulse envelope, the less the error of determining of the pulse start time. The more the difference between comparator thresholds the less the error of determining of the pulse start time. Application of the method of two comparators gives two times systematic error reducing. Minimal sampling of input signal is determined for the method based on echo-pulse envelope. Dependence of the error at start echo-pulse determining on adjacent samples amplitude ratio is obtained. Application of echo-pulse envelope gives three times systematic error reducing.

Язык оригиналаАнглийский
Название основной публикацииIOP Conference Series: Materials Science and Engineering
ИздательInstitute of Physics Publishing
Том81
Издание1
DOI
СостояниеОпубликовано - 23 апр 2015
СобытиеInternational Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014 - Tomsk, Российская Федерация
Продолжительность: 3 ноя 20148 ноя 2014

Другое

ДругоеInternational Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014
СтранаРоссийская Федерация
ГородTomsk
Период3.11.148.11.14

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Fingerprint Подробные сведения о темах исследования «Measurement error reducing in the ultrasound time-pulse systems». Вместе они формируют уникальный семантический отпечаток (fingerprint).

  • Цитировать

    Soldatov, A. I., Kozhemyak, OA., Soldatov, A. A., & Shulgina, Y. V. (2015). Measurement error reducing in the ultrasound time-pulse systems. В IOP Conference Series: Materials Science and Engineering (1 ред., Том 81). [012117] Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/81/1/012117