- Maximum short-term SPL (ANSI/CEA)
- Harmonic distortion versus frequency and amplitude
- Sinusoidal transient stimulus (cycles, band-width)
- Complex compensation of sound reflections in non-anechoic environment (room)
The TBM Module uses a transient sinusoidal burst to measure the peak SPL and harmonic distortion versus frequency and amplitude according to Standards ANSI/CEA-2010, ANSI/CEA-2034 and IEC 60268-21. If the distortion exceeds a user defined threshold, the input amplitude will be not increased to prevent a damage of the device under test. A second state variable (displacement, voltage, current) can be measured simultaneously. Acoustical measurements can be performed in a non-anechoic environment by compensating the room reflections by inverse filtering of the microphone signal.
Operation and/or object templates for this module are available when creating a new operation or object in dB-Lab. This provides application specific setups and standard conforms tests.
Please find details on templates in Application Note AN 1001.