Ultrasonic Test

Ultrasonic test is used as a method to determine the velocity of propagation of P and S waves in laboratory rock samples. In this technique, the frequency of wave should be high and rock specimens should have infinite extent compared to the wavelength of the pulses. The specimens can be rectangular blocks, cylindrical cores or even spheres (for determination of elastic symmetry of anisotropic rocks). This test is performed in accordance with ISRM suggested method or ASTM D2848 standard.

Biot’s Coefficient