Timeline for How to 'average' a sine wave of RMS values?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Jun 6, 2016 at 9:05 | answer | added | Marko Buršič | timeline score: 1 | |
| Jun 5, 2016 at 16:31 | comment | added | user57037 | If your signal consists of the desired signal + a small unwanted sine wave component, then averaging is the right thing to do. If you can capture the 16000 points into a computer file somehow, maybe get them into an excel spreadsheet, you can test out different processing options and see the effect. | |
| Jun 5, 2016 at 9:35 | comment | added | Marko Buršič | You should square the signal, then compute the mean and then calcuate square root. Alternatively, you square the signal, pass trough LPF and then sqroot. | |
| Jun 5, 2016 at 9:02 | comment | added | Sam | You can always take an average and compare it to the rms of the samples, see if it gives funny results. Presumably an average is what you want as the average of a sine wave is zero and will thus effectively remove the low frequency component leaving only the pure DC value. If possible, lowering the sample rate may also have a similar averaging effect. | |
| Jun 5, 2016 at 8:52 | review | First posts | |||
| Jun 5, 2016 at 10:36 | |||||
| Jun 5, 2016 at 8:51 | history | asked | Aad | CC BY-SA 3.0 |