The impedance tube (also know as Kundt Tube) measurement obtains the normal incidence absorption coefficient of a layer of textiles with a small diameter (usually less than 10 cm).
The impedance tube (also know as Kundt Tube) measurement obtains the normal incidence absorption coefficient of a layer of textiles with a small diameter (usually less than 10 cm).
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Sound Level Meter Model 831C
Class 1 Environmental Noise & Building Acoustics Analyser that has combined features of a precision Class 1 Sound Level Meter, Environmental Noise Analyser, Personal Noise Dosimeter, and a real-time frequency analyser in a simple-to-use, single hand-held instrument.
G4 LD Utility Software
The G4 App is a free program for the use of Sound Level meters, Human Vibration Meters and Noise Dosimeters. The app allows you to connect, control, download, and view data from multiple devices simultaneously.
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