US Patent 7397168 Transducer housing for an ultrasonic fluid meter

A transducer housing for an ultrasonic fluid meter. At least some of the illustrative embodiments a transducer housing comprising a housing having a proximal end, a distal end and an internal volume, the housing couples to a spoolpiece of an ultrasonic meter, and an acoustic matching layer that fluidly seals the distal end from the internal volume (wherein the housing accepts a piezoelectric element within the internal volume and proximate to the acoustic matching layer). The acoustic matching layer has an acoustic impedance between that of the piezoelectric element and a fluid within the ultrasonic meter.