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Title: Method and system to separate optically measured coupled parameters

Abstract

A system includes a first optical sensor sensitive to both a parameter of interest, Parameter1, and at least one confounding parameter, Parameter2 and a second optical sensor sensitive only to the confounding parameter. Measurement circuitry measures M1 in response to light scattered by the first optical sensor, where M1=value of Parameter1+K*value of Parameter2. The measurement circuitry also measures M2 in response to light scattered by the second optical sensor, where M2=value of Parameter2. Compensation circuitry determines a compensation factor, K, for the confounding parameter based on measurements of M1 and M2 taken over multiple load/unload cycles or over one or more thermal cycles. The compensation factor is used to determine the parameter of interest.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Palo Alto Research Center Inc., Palo Alto, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771697
Patent Number(s):
10854932
Application Number:
14/810,919
Assignee:
Palo Alto Research Center Incorporated (Palo Alto, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01D - MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
DOE Contract Number:  
AR0000274
Resource Type:
Patent
Resource Relation:
Patent File Date: 07/28/2015
Country of Publication:
United States
Language:
English

Citation Formats

Ganguli, Anurag, Schwartz, Julian, Raghavan, Ajay, Kiesel, Peter, Saha, Bhaskar, Sahu, Saroj Kumar, and Sommer, Lars Wilko. Method and system to separate optically measured coupled parameters. United States: N. p., 2020. Web.
Ganguli, Anurag, Schwartz, Julian, Raghavan, Ajay, Kiesel, Peter, Saha, Bhaskar, Sahu, Saroj Kumar, & Sommer, Lars Wilko. Method and system to separate optically measured coupled parameters. United States.
Ganguli, Anurag, Schwartz, Julian, Raghavan, Ajay, Kiesel, Peter, Saha, Bhaskar, Sahu, Saroj Kumar, and Sommer, Lars Wilko. Tue . "Method and system to separate optically measured coupled parameters". United States. https://www.osti.gov/servlets/purl/1771697.
@article{osti_1771697,
title = {Method and system to separate optically measured coupled parameters},
author = {Ganguli, Anurag and Schwartz, Julian and Raghavan, Ajay and Kiesel, Peter and Saha, Bhaskar and Sahu, Saroj Kumar and Sommer, Lars Wilko},
abstractNote = {A system includes a first optical sensor sensitive to both a parameter of interest, Parameter1, and at least one confounding parameter, Parameter2 and a second optical sensor sensitive only to the confounding parameter. Measurement circuitry measures M1 in response to light scattered by the first optical sensor, where M1=value of Parameter1+K*value of Parameter2. The measurement circuitry also measures M2 in response to light scattered by the second optical sensor, where M2=value of Parameter2. Compensation circuitry determines a compensation factor, K, for the confounding parameter based on measurements of M1 and M2 taken over multiple load/unload cycles or over one or more thermal cycles. The compensation factor is used to determine the parameter of interest.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {12}
}

Works referenced in this record:

Fiber optic strain sensor
patent, December 2003


Monitoring and Management for Energy Storage Devices
patent-application, April 2015


Real-time temperature measurement with fiber Bragg sensors in lithium batteries for safety usage
journal, November 2013