Transient heat transfer analysis is essential in various applications, especially in short-duration facilities like gas turbine engines, internal combustion engines, and hypersonic flow environments. The present investigation focuses on the design, fabrication, and calibration of thin film gauges (TFGs) using platinum as the material. While experimenting, we encountered several challenges in the fabrication of TFGs, particularly concerning the bonding strength between the substrate and the thin film. To overcome this issue, we used two techniques to enhance adhesion strength: careful evaluation of surface roughness and subjecting the TFGs to a heat treatment process at a temperature of 1000 °C. As a result of this, we can conclude that the fabricated substrate is applicable in harsh environments such as shock tubes, internal combustion engines, shock tunnels, aero engines, and high-velocity and dynamically changing conditions. This is due to the enhanced sensitivity and adhesion enabled by the enhancement of surface roughness and heat treatment.