US 2026/0043692 A1Published application

Method and system for producing fluorescence sensors

AssigneeOsensa Innovations Corp.

InventorDaryl JAMES

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Abstract

Ingredients of a fluorescent material are selected and apportioned to yield a fluorescence lifetime that varies monotonically within a specified range of temperatures of the fluorescent material. The fluorescent material includes both inert ingredients and active tuning ingredients that monotonically influence the dependency of fluorescence lifetime on temperature. The invention provides a method of adjusting a selected fluorescence material to result in variation of fluorescence lifetime with temperature that closely adhere to a monotonic reference function, of fluorescence lifetime versus temperature, that is specific for a temperature-range of interest. The reference function may be monotone-decreasing or monotone-increasing. On a manufacturing scale, fluorescent materials, thus adjusted, can be used to produce temperature sensors that are backward compatible. A system implementing the method employs a chemical-processing facility, an apparatus for measuring fluorescence lifetime, and a computation module for determining requisite adjustments to be fed back to the chemical facility.

Claims20

Dependent claims

A method of producing fluorescence-based temperature sensors, implemented in a system performing chemical-processing, fluorescence decay-time measurement, and computation, the method comprising:

acquiring a reference transfer function relating fluorescence decay-time to temperature over a temperature range;
determining a set of pivotal temperatures and a set of observation temperatures within the temperature range;
for each pivotal temperature:
forming a batch of fluorescence material comprising a tuning ingredient;
determining, from the reference transfer function, a target decay-time corresponding to said each pivotal temperature;
iteratively:
extracting a set of samples from the batch;
measuring a current fluorescence decay-time of the set of samples;
where the current decay-time differs from the target decay-time, adjusting concentration level of the tuning ingredient of the batch and repeat said extracting until the target decay-time is reached at an appropriate concentration level;
gauging observation fluorescence decay-times of the set of samples at the observation temperatures;
determining:
deviations of the observation fluorescence decay-times from corresponding values of the reference transfer functions;
and
a deviation indicator;
and
deducing an optimal concentration level based on values of the appropriate concentration level and respective deviation indicators corresponding to the pivotal temperatures;
and
using said fluorescent material with said optimal concentration level of the tuning ingredient to produce said temperature sensors.

15 more elements

A system for producing fluorescence-based temperature sensors, comprising:

a chemical-processing unit;
a decay-time measurement unit;
and
a computation unit;
the chemical-processing unit is configured to:
form a batch of fluorescence material comprising a tuning ingredient;
adjust concentration of the tuning ingredients according to instructions from the computing unit;
and
extract sets of samples from the batch;
the decay-time measuring unit is configured to measure decay-times of the sets of samples at each of selected temperatures and communicate the decay-time measurements to the computation unit;
the computation unit is configured to:
acquire a reference transfer function relating decay-time to temperature over a temperature range;
determine, from the reference transfer function, for the selected temperatures, respective target decay-times;
receive said decay-time measurements;
determine requisite adjustments of concentration level of the tuning ingredient of the batch to reach said respective target decay-times;
communicate the requisite adjustments to the chemical-processing unit;
and
deduce an optimal concentration level based on received decay-time measurements;
use said fluorescent material with said optimal concentration level of the tuning ingredient to produce said temperature sensors.

16 more elements

Dependencies are inferred from the claim text.