Portable impedance meter for non-destructive testing of sound ab

Details Portable impedance meter for non-destructive testing of sound ab Portable impedance meter for non-destructive testing of sound ab

1986-04-28

1987-03-24

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73583, 73584, G01N 2904

Patent

active

046515666

ABSTRACT:
A portable acoustic impedance measuring device 10 is provided for measuring the impedance properties of a panel 12. The device 10 includes a horn section 14 having a flexible plate 18. The plate 18 can assume the curvature of the duct panel 12. The horn section 14 is supported adjacent the panel's surface by a spindle shaft 28 which spans or bridges the inside diameter of the duct 12. The curvature of the plate 18 may be locked to hold the curvature of any of a variety of different panels having various sizes and shapes.

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