RESPONSE TIME AND RECOVERY TIME OF A SEMICONDUCTOR SENSOR FOR DETECTING METHANE AND NATURAL GAS

RESPONSE TIME AND RECOVERY TIME OF A SEMICONDUCTOR SENSOR FOR DETECTING METHANE AND NATURAL GAS Khodieva Nargiza Djurakulovna Assistant at the Samarkand State architectural and civil-engineering university Eshkobilova Mavjuda Ergashboyevna Associate Professor at the Samarkand State Medical University https://doi.org/10.5281/zenodo.15512498 Abstract: The response and recovery times of gas sensors provide insights into their dynamic behavior and are determined through experimental methods. The response time refers to the period needed for the sensor to reach 90% of its final signal value after exposure to a sudden change in gas concentration. This is often labeled as τ₀₉ or τ_response. Conversely, the recovery time, denoted as τ₀₁ or τ_recovery, is the time taken for the sensor to return to 10% of its initial baseline value after the gas is removed and clean air is introduced. Keywords: Nanocomposite metal oxides, Gas sensors, Methane detection, Natural gas sensing, Semiconductor sensors, SnO₂, ZnO, WO₃ Sol-gel synthesis.