NIST researchers have developed a novel temperature calibration technique for their microhotplate technology, improving its reliability and stability. The microhotplates, about the width of a human hair, are used as the foundation for miniature gas sensors that can detect chemical and biological agents, industrial leaks, and signs of extraterrestrial life.
The new calibration method uses data from two additional temperature sensors to compare and ensure accurate temperature measurements. This results in temperature measurements accurate to within 1.5 degrees Celsius. NIST engineers are working on additional technology advancements, including a built-in system for sensing contamination of the metal oxide films used in the sensors.
Keywords: Metrology, Microhotplate, Gas Detection
