A Temperature Drift Correction Method for Microcalorimeter

This paper describes a temperature drift correction method, named as "low-frequency reference method", used in 2.4mm coaxial microcalorimeter system developed by National Institute of Metrology, China(NIM). Proposed method is used to trace the temperature drift during the long-term calorimetry measurement of a 2.4mm coaxial thermoelectric power sensor, and compensate the drift in measurement results. Compensated results indicate that the proposed method greatly improves the stability and repeatability of the microcalorimeter measurement.