| 摘要 |
<p>A non-invasive system and method for inducing vibrations in a selected element of the human body and detecting the nature of responses for determining mechanical characteristics of the element. The method includes the steps of: inducing multiple-frequency vibrations, including below 20 KHz, in a selected element e.g., in one embodiment, the carotid artery (40, Fig. 1), of the body by use of a driver (1); determining parameters of the vibrations exerted on the body by the driver; sensing variations of a dimension of the element of the body over time, including in response to the driver; correlating the variations with frequency components of operation of the driver below 20 KHz to determine corresponding frequency components of the variations; resolving the frequency components into components of vibrations mode shape; and determining the mechanical characteristics of the element on the basis of the parameters of vibrations exerted by the driver and of the components of vibration mode shape.</p> |
