Condensate free ultrasonic transmitter

Details Condensate free ultrasonic transmitter Condensate free ultrasonic transmitter

G - Physics

01

S

G01S 15/00 (2006.01) B06B 1/06 (2006.01) G01F 23/296 (2006.01) G01S 7/52 (2006.01) H01L 41/08 (2006.01) H04R 17/00 (2006.01)

Patent

CA 2282587

A distance or level measuring system in accordance with the present invention is employed to measure the distance between a predetermined location and a material having a surface. The inventive system comprises a transducer (10), a heater (18) for heating the transducer so as to prevent the formation of condensation in an area adjacent the transducer and between the transducer and the material surface, and an electrical control circuit (80, 80') coupled to the heater for controllably energizing the heater.

La présente invention concerne un système de mesure de niveau ou de distance utilisé pour mesurer la distance entre un emplacement prédéterminé et un matériau présentant une surface. Le système de l'invention comprend un transducteur (10), un élément de chauffage (18) qui chauffe le transducteur afin d'empêcher la formation de condensation dans une zone adjacente au transducteur et entre le transducteur et la surface du matériau et un circuit (80, 80') de commande électrique couplé à l'élément de chauffage de façon à alimenter ledit élément de chauffage de manière dirigée.

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