| 摘要 |
<p>1. Ultrasonic wave sensor intended to come into contact with a wall at a high temperature (1), incorporating, within a body (3) made of a metallic material connected to a support (21) for positioning the sensor (2) on the wall (1), a piezoelectric ceramic pellet (8) connected to electrical power supply and/or measuring leads (9) and making contact with one end (5b) of a waveguide the other end (5a) of which is in contact with the wall (1) when the sensor (2) is in the operating position, characterised in that the waveguide (5) consists of a single part made of a vitroceramic material, whose end (5a) in contact with the wall (1) is machined to have a very high surface finish.</p> |
