Patent ID: 7456968

Claim:
A system for quantitative analysis of environmental parameters, said system comprising: a disk drive for supporting and rotating an optical disk, said optical disk having a data track with at least one sensor region disposed thereon; a light source for directing light onto said optical disk, allowing said directed light to interact with said at least one sensor region; an optical detector for detecting said interacted light and for generating a corresponding signal indicative of a measurable property of said interacted light; an analog-to-digital converter for quantifying said signal from said optical detector; recording means for recording data about a state of said quantified signal; reference means for correlating said data to a condition of said at least one sensor region; signal processing means for improving precision of said quantified signal; display means for displaying said data; and positioning means for moving said light source and said optical detector along said data track of said optical disk; wherein said recording means captures a data stream over a plurality of revolutions of said optical disk at each radial increment of said at least one sensor regions, and said signal processing means locates a pattern within said data stream, extracts a plurality of subsets of data which corresponds to single revolutions of the optical disk, and averages said subsets of data to obtain an average waveform.