Patent ID: 7124048

Claim:
A sensor system comprising: a probe comprising a light source and a sensor, the sensor having a probe calibration output and a calibrated probe output, wherein the probe outputs are responsive to incident light radiation received from the light source to produce signals proportional to an amplitude and a centroid wavelength of the incident light, and the probe calibration output is generated continuously while taking a physiological measurement; a calibration circuit in signal communication with the probe and comprising an electronic calibration output responsive to the probe calibration output, and a calibrated electronic output responsive to the calibrated probe output; a controller in signal communication with the calibration circuit and comprising a lookup table having a wavelength value output responsive to the electronic calibration output and the calibrated electronic output, wherein the wavelength value output is determined in real-time and is then used to correct physiological data derived from the signal proportional to the amplitude of the incident light; and, a measuring device comprising an output generated in response to the wavelength value output.