Original Publication Date: 1978-Aug-01
Included in the Prior Art Database: 2005-Feb-21
A thermoelastic transducer is shown in Fig. 1 which includes a disc 14 composed of a material, such as MYLAR* polyethylene terephthalate polyester, having a thin film 10 of opaque material, preferably in the form of a metal which absorbs radiation such as a laser, converting the absorbed radiation energy into heat. Disc 14 and film 10 rest on an 0-ring 15 which rests in a groove in annular member 16, which rests on a second 0-ring 17 which rests on glass end plate 18, all of which are clamped together by means of bolts 19, nuts 20 and clamping ring 21. A space is defined by film 10, 0-rings 15 and 17, member 16 and plate 18, within which is contained a fluid 11, such as acetone, which can be heated by film 10 when it is hot.