Using triangulation method to address regression problems for measurements of ultra-high electrical resistance

The triangulation is widely applied in research and surveying and its application in metrology can support the choice of extrapolating measurement values through regression models, a practice that still encounters opposition among metrologists. Triangulation offers an approach to improve the accuracy and reliability of regressions by allowing for the verification of their results against independent measurement techniques or data sources. In a general, triangulation involves using independent sources or methods to validate a conclusion or measurement. Within metrology, this means to compare measurements obtained from different instruments or techniques to minimize bias [1] and increase the overall confidence in the final measurement result. Our work focuses on extending the capabilities of high resistance measurement systems, specifically, applying the principles of metrological triangulation. This approach allows us to extend reliably the measurement ranges of these systems, particularly in areas where their performance is limited. First application of the method was on the dual source high resistance bridge (DSB)