This unit has been designed to provide students with an easy and simple method for understanding and investigating the relative acoustic properties of several materials. It demonstrates acoustic attenuation of a range of building materials as carpet, cork and fibre board.
The unit is very useful for the teaching of students in different areas as: Sound and Vibration, Mechanics, Aeronautics, Building, Architecture, Health and Safety, etc.
An acoustic standing wave unit driven by two loudspeakers and a separate console mounted power amplifiers.
A small microphone traveling in the transparent plastic tube allows the acoustic signal to be fed to the console mounted microphone amplifiers.
The transparent plastic tube combine with a scale and marker allow the microphone axial position to be measured.
Several test samples allow a wide range of tests on differing materials. This unit is supplied with the necessary instrumentation and sensors for controlling and measuring the most representative parameters.