Current sensing with a precision of a few parts per million within a fraction of a second

Author

Szwarc, Joseph

Author_Institution

Vishay Intertechnology, Vishay Israel, Holon, Israel

fYear

2009

fDate

9-11 Nov. 2009

Firstpage

1

Lastpage

4

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/Â°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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/COMCAS.2009.5386031

Filename

5386031