Title :
Dual transformer for power measurement in the audio frequency band
Author :
Pogliano, U. ; Trinchera, B. ; Bosco, G.C. ; Serazio, D.
Author_Institution :
Ist. Naz. di Ricerca Metrol. (INRIM), Turin, Italy
Abstract :
A new analog processing unit with extended frequency band, based on an electromagnetic principle, has been designed and realized at INRIM. The unit can be employed in power measurements in the audio frequency band. The mathematical operations of the sum and the difference of two waveforms from 20 Hz to 100 kHz are performed simultaneously. Preliminary characterization and a simple model are reported.
Keywords :
analogue processing circuits; transformers; INRIM; analog processing unit; audio frequency band; dual transformer; electromagnetic principle; extended frequency band; frequency 20 Hz to 100 kHz; power measurement; Capacitance; Core loss; Costs; Electric variables measurement; Electromagnetic measurements; Frequency measurement; Integrated circuit measurements; Power measurement; Toroidal magnetic fields; Wideband;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5545077
