Digital sensors perform multi-point calibration during manufacturing, storing correction coefficients in memory. The sensor applies these continuously, compensating for non-linearity and drift—typically less than 2% signal per month.
RTD and thermistor circuits use ratiometric measurement, comparing sensor resistance to a precision reference rather than absolute voltage. This helps cancel supply variations and can help reduce common-mode noise.
Fast response requires minimizing thermal mass. Thin-film platinum RTDs—like the HRTS Series—use sensing elements that are micrometers thick on ceramic substrates, achieving rapid response while maintaining industrial durability.