The temperature coefficient of standard resistors of various types is well-known to within an acceptable uncertainty, for the purposes that these resistors are used for in most calibration laboratories. There are instances where this information is insufficient, or not available from the manufacturer. A set of pre-used high precision resistors was recently acquired by the CSIR National Metrology Laboratory (CSIR NML) for maintenance of the resistance scale above 1 Ohm. These resistors were received without any data of their temperature coefficients, and it was decided to measure the temperature coefficient of these resistors with as high a precision as possible. A high precision oil bath was available for this purpose, and a general procedure for this determination was developed
Reference:
Marais, EL. 2006. Determining the influence of temperature on various types of standard resistors. 2006 Test and Measurement Conference, Emperors Palace Convention Resort, Johannesburg International Airport, 22-25 October 2006, pp 6
Marais, E. (2006). Determining the influence of temperature on various types of standard resistors. http://hdl.handle.net/10204/2811
Marais, EL. "Determining the influence of temperature on various types of standard resistors." (2006): http://hdl.handle.net/10204/2811
Marais E, Determining the influence of temperature on various types of standard resistors; 2006. http://hdl.handle.net/10204/2811 .
Also available in the NML reports database, report number NML-06-0220. Presented at the 2006 Test and Measurement Conference. Copyright held by the National Laboratory Association
