| 摘要 |
<p>1. Multi-purpose ultrasonic transducer which can be adapted to the test configurations, of the type having a wave guide housing (1) which is generally parallelepipedal in shape and, starting from one of its lateral faces, defines a compartment (11) of circular transverse section containing a complementary core which can be regulated in its angular position and bears a piezoelectric element, characterised in that : - the housing (1) consists of two parts (2 and 3) which are separated by a sound insulating wall (4), this housing defining at least one cylindrical compartment (11 and 32, 33), - and it has two piezoelectric elements or capsules (16, 17) which are associated with at least one cylindrical core (12 and 34, 35) and are arranged in a relative inclination on either side of the plane of the wall (4) in order to constitute respectively a transmitter and a receiver.</p> |
