Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
BRUEL & KJAER, SOUND & VIBRATION MEASUREMENT A/S
| BRUEL & KJAER, SOUND & VIBRATION MEASUREMENT A/S Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20110164466 | Reconstructing an Acoustic Field - Disclosed is a method of reconstructing a sound field. The method comprises receiving measured values of a first acoustic quantity measured at a set of measurement locations; computing a second acoustic quantity for a target location from a superposition of plane waves. The method comprises storing a set of representations of interpolations of respective functions, each function being a function of two or less input parameters; and computing comprises computing each of a set of correlation functions, each correlation function being indicative of a correlation of the plane waves at a first one of said measurement locations with the plane waves at a second location, as a linear combination of values obtained from the set of representations of interpolations. | 07-07-2011 |
| 20100305886 | Kurtosis Regulating Vibration Controller Apparatus and Method - A vibration control system provides a user-specified value of kurtosis as well as user control over a baseline random spectral density profile. The baseline random spectral density profile and a signal that embeds the desired value of kurtosis are summed in the frequency domain prior to forming a time-domain output waveform that drives a vibration table with attached unit under test. Feedback from a sense transducer attached to the vibration table or the unit under test measures the as-realized vibration's random spectral density and kurtosis value, which are then compared to the desired values to allow correction. | 12-02-2010 |