Advances in Acoustics and Vibration / 2013 / Article / Fig 2

Research Article

Side Branch Interaction with Main Line Standing Waves and Related Signal Handling Approaches

Figure 2

(a)  Early waveguide configuration positioned under table for operation. Waveguide is supported on bubble wrap vibration isolators, and early long variable active length branch is depicted. (b) photograph of main line, branch and bypass valve, without blower. Waveguide is supported on pipe stubs to facilitate photograph.