Abstract
The evaluation of results in the case of indirect multi-parameter measurements is presented. A theoretical basis for determining the estimates of values, the uncertainties and the correlation coefficients of indirectly obtained multi-measurand is explained in detail. The example of a difference and an average of two-temperature indirect measurement is given with the use of two RTDs. Such sensors are used in the laboratory and industrial temperature control systems. The uncertainty of measurements depends on the errors of two RTDs and the structure of signal conditioning circuit.
Highlights
Temperature is the most frequently measured parameter in healthcare, industrial, air conditioning and ventilation, robotic and automotive applications [1], [2]
To know temperature or temperature difference with the right balance of accuracy, precision and repeatability is critical in many applications [3]
Many applications require multiple resistance temperature detectors (RTDs), so the interface and associated circuitry must be appropriate for the application [4], [5]
Summary
Temperature is the most frequently measured parameter in healthcare, industrial, air conditioning and ventilation, robotic and automotive applications [1], [2]. The platinum sensor (e.g. Pt100) has a fully defined, repeatable and characterized resistance vs temperature function. Standard platinum RTD sensors (IEC 60751) operate in the range of –200 °C to + 800 °C.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
