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FFT analyzer FAQ

Relationship between time constant and cutoff frequency of low-pass filter
The relationship between time constant and cutoff frequency is indicated by the following formula

 

From the above formulaï¼›

 

Time constant Cutoff frequency

1.6 ms

100 Hz

3.2 ms

50 Hz

6.4 ms

25 Hz

16 ms

10 Hz

32 ms

5 Hz

64 ms

2.6 Hz

160 ms

1 Hz

 

Revised:2010/12/20


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