We consider the problem of reconstructing inhomogeneities in an isotropic elastic body using time harmonic waves. Here we extend the so called monotonicity method for inclusion detection and show how to determine certain types of inhomogeneities in the Lam\'e parameters and the density. We also included some numerical tests of the method.

翻译：我们考虑利用时谐波重构各向同性弹性体内非均匀性的问题。本文扩展了所谓的单调性方法用于夹杂物检测，并展示了如何确定拉梅参数和密度中的特定类型非均匀性。我们还包含了该方法的一些数值测试。