ULTRASONIC PROBE FOR MEASURING REFLECTION COEFFICIENTS AND ASSOCIATED METHOD FOR DETERMINING THE MECHANICAL PROPERTIES OF INITIALLY LIQUID OR MOUS MEDIA AND THEIR EVOLUTIONS

摘要

The invention relates to a probe for measuring oblique impact reflection coefficients in the case of a continuous wave emission which has the advantage of significantly simplifying the electronics. The invention proposes a method associating the measurements of several reflection coefficients and their uncertainties with an operating method leading to the mechanical properties of the medium. The probe consists of a solid solid (100) equipped with an emission device (120) producing an incident wave (Oi) which is reflected on a plane interface of the studied medium (104), the reflected wave (Gold ) strikes the receiving surface (111) at a non-zero gamma incidence angle (y). The wave reflected on the receiving device is removed by multiple reflections on the probe walls covered with an absorbing medium (105).