title: Instructional laboratory experiment on the effect of sound reflection on the driving-point impedance loop of a small sonar transducer.
abstract: This letter presents an experiment in acoustics to be used in a laboratory course for advanced undergraduate or beginning graduate students in physics or engineering. It describes the equipment used and the effect of reflection from a plate immersed in water on the driving-point impedance of a small sonar transducer placed at the air-water surface above the plate.
mesh_terms: D000158:Acoustic Impedance Tests; D000162:Acoustics / Q000295:instrumentation*; D004738:Engineering / Q000295:instrumentation; D010825:Physics / Q000193:education