Portable liquid crystal testing device

A portable device for inspecting bodies for internal flaws and for providing a visual image thereof which comprises:

• an ultrasonic transducer which emits ultrasonic energy for insonifying at least a portion of the body to be inspected;
• a liquid crystal display for receiving energy from the insonified body and for visually displaying an image thereof;
• and
• means for viewing the display;
• wherein the improvement comprises said device being constructed to rest on a surface, to be acoustically coupled to said surface, and to inspect for flaws or features beneath said surface, said device including:
• an assembly for separately but adjustably supporting said transducer and said liquid crystal display in reflection-receiving relation to each other, said assembly including:
• first housing means for supporting said transducer in relation to said surface;
• second housing means for supporting said display in relation to said surface;
• and
• interconnecting means for adjustably interconnecting said first housing means and said second housing means in reflection-receiving relation to each other,
• said second housing means including:
• an elongated hollow tube with one end constructed to contact said surface and the other end constructed for viewing, with the liquid crystal display being positioned intermediate the ends of the second housing means, there being further provided:
• means at the viewing end for optically viewing images developed by said display;
• means at the contacting end for acoustically coupling said second housing means to the surface;
• and
• acoustic transmission means for contacting the cell and the coupling means for carrying acoustic signals from the contact end of said housing to the cell;
• whereby when said device is placed on a surface, ultrasonic energy emitted from said transducer is projected into the body and reflections therefrom are received on said display through said coupling end and transmission medium for optical viewing.