Title :
A Wide-Range Maxwell-Wien Bridge Utilizing IVD´s and Precision Electronic Circuits
Author_Institution :
Department of Measurements, Czech Technical University in Prague, Technická
fDate :
6/27/1905 12:00:00 AM
Abstract :
A Maxwell-Wien bridge with a nonclassical structure has been developed. The bridge allows a four terminal-pair measurement of inductance standards in the frequency range 500 Hz up to 10 kHz. The matter of bridge modifications concerns an application of inductive voltage dividers (IVDs) and precision electronic circuits, behaving as precise voltage followers. The designed voltage followers have been tested and the results of inductance measurements are corrected on their amplitude and phase errors. The preliminary results show that relative uncertainty (k=2) of inductance measurement (nominal value of 100 mH at frequency 1 kHz) is less than 50 parts in 106
Keywords :
"Bridge circuits","Electronic circuits","Inductance measurement","Voltage","Measurement standards","Frequency","Impedance","Capacitors","Resistors","Transformers"
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE
Print_ISBN :
0-7803-8879-8
DOI :
10.1109/IMTC.2005.1604366
