Abstract: A method and an apparatus for visualizing an elastic wave propagation in a solid substance can be applied to a subject substance which is any one of a transparent body and an opaque body, and can detect SV waves (transverse waves) and SH waves (transverse waves) in elastic wave motion modes, and longitudinal waves, surface waves, and creeping waves. The visualization method comprises the steps of: generating elastic waves in a solid substance in response to electric signals; measuring a quantity of stress change in the solid substance in connection with elastic waves propagation in the solid substance; synchronizing a transmission timing of the electric signals with a measurement timing of the stress change; carrying out measurement while scanning a sensor; and imaging wave fronts of the elastic waves propagated in the solid substance by synchronously indicating the stress change as a function of time.

Abstract: A housing device 100 for plural components that can be arrayed one on top of another includes a support 101 for housing the components on introducing the latter into the support, and a locking unit 102 configured for preventing the components housed in the support 101 from being moved out of the support 101. The housing device 100 also includes a base member 103 having an unlocking support 101 which is adapted to release the state of the locking unit 102 prohibiting the movement of the components housed in the support 101. The components to be housed are usually locked by the locking unit 102. The locked state of the components is established by simply placing the components into the support and is released by the unlocking support 101. A larger number of the components can be housed on top of each other if so desired.