In-house Fabrication and Calibration of Silver Thin Film Gauge

摘要

Measurement of transient surface temperature and surface heat flux got vast attention with recent technological advancement. Thin film gauge (TFG) is the most suitable instrumentation for such measurements. Present work aimed to fabricate and calibrate the silver TFG. In the present work, performance parameters of TFG were estimated through static calibration. Further TFG was subjected to constant heat flux using in-house fabricated calibration setup in conduction mode to assess the thermal performance and reliability of silver TFG. The silver TFG measured the transient surface temperature, which was discretized using cubic spline technique and heat flux was recovered by considering one-dimensional heat conduction modeling in semi-infinite solid. Results revealed that silver thin film gauge can be considered for heat flux measurement for short time scale (s and ms) applications.