Constant Temperature Difference Thermoresistive Radiometer with Enhanced Thermal Link

The paper discusses and analyzes an improved structure radiometer that operates with a thermoresistive sensor. The proposal aims to enhance the heat exchange pathway between the thermistor and its surrounding medium. SPICE simulations were conducted to assess the impact of this modification, with a focus on response time and sensitivity. The proposed modification reached an improved response time and sensitivity. Moreover, temperature control based on a feedback linearization technique was deployed to reduce energy consumption, improving the radiometer's energy performance.