The Impedance Standards at National Physical Laboratory and Global MRA

Abstract

The impedance standards section at the National Physical Laboratory has established primary standards of impedance and associated calibration facilities. These facilities are used to calibrate impedance standards and associated instruments available in echelon II level laboratories in India. As such measurement traceablity has been established at national level. International intercomparison of these standards is also done time-to-time with national laboratories of other countries; such as USSR, Germany, Countries of Asia Pasific region and South Africa etc. Thus National Physical Laboratory (India) has established impedance standards having traceability both at national and international level.<br> As such a well structured measurement system in the area of impedance standardization has been established, which provides a strong foundation for our country to enter in global market for international trade. The above mentioned impedance standards and associated facilities have been included in the BIPM global MRA. This would help to overcome rechnical barriers to trade (TBT) in global market and further strengthen the Indian economy in this area.