10HZ ~100 kHZ White and Pink Noise Generating Circuit

Published:2011/7/9 1:04:00 Author:Michel | From:SeekIC

The picture is 10HZ~ 100kHZ white and pink noise generating circuit.This is a generating circuit who has 10HZ~100kHZ plain frequency characteristics white noise and -3 dB/oct spectrum pink noise. If white noise is put into the sample,the output signal spectrum is measured and the transmission properties of the sample can be obtained.When the measured system contains mechanical system,there will be resonance between the measured system and a particular frequency if sine wave scans measured system,which will destroy the sample.Thus usually,white noise is used.In the audio measurement noise signal is also used and when measured system contains the speaker, the power is high if white noise is used and it's high frequency.



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