Abstract: A system and method for characterizing spectral emission including receiving data characterizing spectral emission from a flame, wherein the data includes a range of wavelengths and a corresponding range of intensities, determining one or more functions to analyze the data, determining, based on the one or more functions, a peak subset of the data and determining, based on the peak subset, one or more parameters of interest.

Abstract: An engine analyzer for an internal combustion engine converts an engine waveform into a digital waveform which is displayed on a monitor. The waveform is converted using two analog-to-digital (A/D) conversion channels. A dedicated A/D control microprocessor is used to control the flow of the digital waveform data between the analog-to-digital conversion channels and a main computer. Waveform data transfer to the main computer is over a dedicated, high speed data bus. A peripheral control microprocessor is used to monitor other engine parameters and shares memory with the A/D control microprocessor.