INCREASING THE MEASUREMENT ACCURACY AT LOW FREQUENCIES BY SUCCESSIVE EXTRACTION OF THE ABSOLUTE MEAN VALUE |
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| U. Pogliano |
- Abstract:
- A method for the precision measurement of the RMS value of a low frequency voltage signal is described in this paper. The method consists in one or more stages that perform basically the same function, even if they can differ for the level of accuracy required. Each stage performs: the determination of the absolute value as function of time and the extraction of its mean value. Actual realization by means of an electronic circuit shows that accuracy at the level of 1 part in 104 can be easily reached.
- Keywords:
- AC measurement, voltmeters, analogic signal processing
- Download:
- IMEKO-TC4-2001-070.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2001
- Title:
11th IMEKO TC4 Symposium on Trends in Electrical Measurements and Instrumentation (together with 6th IMEKO TC4 Workshop on ADC Modelling and Testing)
- Place:
- Lisbon, PORTUGAL
- Time:
- 13 September 2001 - 14 September 2001