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US 9,851,249 B2Granted
Method for enabling system operation based on a spectral fingerprint
AssigneeMicron Optics, Inc.
InventorTodd Christian Haber
Life of this patent
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Abstract
A sensor system is disclosed, wherein the sensor system provides output data only when the error between a plurality of measured absorption wavelengths of a gas cell and a plurality of known absorption lines for the gas cell is less than or equal to a user-defined error margin.
Claims16
A method for detecting errors in a sensor system, the method comprising:
- providing a gas cell characterized by a plurality of known spectral features;
- measuring the gas cell to determine a plurality of measured spectral features, wherein each of the plurality of measured spectral features corresponds to a different one of the known spectral features;
- and
- determining a plurality of error values, each error value being the difference between a different one of the measured spectral features and its corresponding known spectral features;
- and
- establishing a system error if any one of the plurality of error values exceeds a first user-defined threshold.
3 more elements
A method for preventing transmission of erroneous data from a system when the data is characterized by at least one error that exceeds a user-defined threshold, the method comprising:
- measuring a first response of a gas to a first portion of a first light signal, wherein the first response of the gas is characterized by a first plurality of spectral features that is based on the composition of the first gas;
- establishing a plurality of first wavelength values, wherein each of the plurality of first wavelength values is established for a different one of the first plurality of spectral features;
- providing a plurality of second wavelength values, wherein each of the plurality of second wavelength values is based on a different one of a plurality of known spectral features for the gas;
- establishing a one-to-one correspondence between the plurality of first wavelength values and the plurality of second wavelength values;
- generating an error value for each of the first plurality of spectral features, where each of the plurality of error values has a magnitude equal to the difference between its respective first wavelength value and its corresponding second wavelength value;
- and
- enabling transmission of data from the system only when each of the plurality of error values is less than or equal to the user-defined threshold.
4 more elements
Dependencies are inferred from the claim text.