|
| | Abstract | | The objective of a series of our experimental studies is to establish measurement system using an ultrasonic P-wave and S-wave transmission technique in low temperature. In this study, we conducted laboratory measurements of ultrasonic S-wave in partially frozen brines for different propagation distances. Acquisition of S-wave data is not easy compared with the case of P-wave data, possibly because of strong attenuation of S-wave and the influence of P-wave. We observed the variations of a transmitted wave with frequency content of 200-1000 kHz through a liquid system to a solid-liquid coexistence system, changing its temperature from normal temperature to -20degrees. |
|
|
|
| |
|