Milliohm Resistance Measurements Based on LabVIEW and PCI-2005
With the development of electrical measurement technology,more and more electrical equipment and pre-cision instruments will use milliohm resistors,and the accurate measurement of milliohm resistor parameters is be-coming more and more important.Ordinary multimeter is difficult to meet the accurate measurement of milliohm resistor parameters,in order to accurately measure milliohm resistor parameters,the signal acquisition and processing sys-tem is designed by using the LabVIEW program development platform and PCI-2005 signal acquisition card.The AD sampling method of PCI-2005 signal acquisition card is analyzed,and the corresponding LabVIEW application is de-veloped by using AD sampling technology to measure the parameters of milliohm resistor.Among them,the measure-ment principle of milliohm resistors and the zero drift phenomenon generated during measurement are mainly aralyzed,and finally the measurement of resistor value is realized,and the error is within 2%.
LabVIEWPCI-2005 data acquisition cardmilliohms resistance measurement