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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 formula；

 

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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