The Acoustic Spectrums of the combustion Process in the IC-Engines

The results of the Fourier spectroscopy of the acoustic noise of an internal combustion engine are presented. The sound was recorded using a voice recorders placed near the four-cylinder petrol engine. The engine speed was set to the fixed values from 900 to 3000 rpm. The distinctive characteristics

Digital Recursive Filters for Building Thermal Modelling

The digital recursive filters where proposed as models of the thermal dynamics of the building. The developed wireless system of temperature sensors has been applied in collecting a large body of data. From physical consideration, the first-order recursive filters describe the thermal dynamics

Спектральный анализ акустических шумов автомобиля

The results of the Fourier spectroscopy of the acoustic noise of an internal combustion engine are presented. The sound was recorded using a voice recorder placed near the engine under varied operating conditions for the four-cylinder petrol engine. The distinctive characteristics of the periodogram

Спектральный анализ акустических шумов автомобиля

We present new wireless sensor telemetry system designed to be mounted on different nodes of the car and record acoustic noises. The proposed system is mapping noise inside a car. The noise field is recorded at the ten control regions simultaneously.