Title :
Current sensing with a precision of a few parts per million within a fraction of a second
Author_Institution :
Vishay Intertechnology, Vishay Israel, Holon, Israel
Abstract :
The most precise measuring of electrical current is achieved by the Current Sensing Resistor method. The precision and speed of response to changing current depend on thermal stability of the resistor - its low Temperature Coefficient of Resistance and a related to it Power Coefficient of Resistance. The new Foil resistor technology (Z foil) reduced the TCR to below 1 ppm/°C and special construction reduced the thermal distortion leading to a current detector with a Precision of a few parts per million within a Fraction of a Second.
Keywords :
electric current measurement; electric sensing devices; electrical resistivity; foils; resistors; thermal stability; Z foil; current detector; current sensing resistor; electrical current measurement; foil resistor technology; power coefficient of resistance; temperature coefficient of resistance; thermal distortion; thermal stability; Current measurement; Detectors; Electric resistance; Electric variables measurement; Electrical resistance measurement; Resistors; Temperature dependence; Temperature sensors; Thermal resistance; Thermal stability; Current measurement; detectors; distortion; resistors; strain; temperature; thermal factors;
Conference_Titel :
Microwaves, Communications, Antennas and Electronics Systems, 2009. COMCAS 2009. IEEE International Conference on
Conference_Location :
Tel Aviv
Print_ISBN :
978-1-4244-3985-0
DOI :
10.1109/COMCAS.2009.5386031
