Construction and remote calibration of an automated resistance measuring system

摘要

The calibration of resistances was being performed manually at National Institute of Standards (NIS), Egypt till now. In this paper, a fully automated system for the remote calibrations of resistances is described. This sytem is mainly used for routine calibrations for low precision calibrations. The calibration of many resistors can be performed in this system automatically through the Resistors Automatic Changer which is controlled by a LabVIEW program developed and described in the present research work. Not only these calibrations of resistances are performed automatically but are also controlled remotely via an internet connection. Some simple remote and automated resistance measurements are carried out just to confirm our new measuring system.