Methods and systems for calibrating chemical sensors
AssigneeEmpire Technology Development LLC
InventorMordehai Margalit
Life of this patent
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Abstract
Methods and systems for calibrating a chemical sensing system are disclosed. Detection of a substance using a first chemical sensor in a chemical sensing system may be initiated at a first time. The first chemical sensor may output a first sensor value. Detection of the substance using a second chemical sensor in a chemical sensing system may be initiated at a second time that differs from the first time by a delta value. The second chemical sensor may output a second sensor value. The chemical sensing system may be calibrated based on the first and second sensor values at the second time and the first and second sensor values at a current time.
Claims24
A method of calibrating a chemical sensing system, the method comprising:
- initiating detection of a substance using a first chemical sensor in a chemical sensing system at a first time, wherein the first chemical sensor outputs a first sensor value;
- initiating detection of the substance using a second chemical sensor in a chemical sensing system at a second time, wherein the second chemical sensor outputs a second sensor value, wherein the second time differs from the first time by a delta value;
- and
- calibrating the chemical sensing system based on the first and second sensor values at the second time, and the first and second sensor values at a current time, wherein calibrating the chemical sensing system comprises determining a calibration value proportional to the ratio of (i) the product of the first sensor value at the current time and the difference between the first sensor value at the second time and the second sensor value at the second time and (ii) the difference between the first sensor value at the current time and the second sensor value at the current time.
(canceled)
A method of calibrating a chemical sensing system, the method comprising:
- initiating detection of a substance using a plurality of chemical sensors in a chemical sensing system, wherein each of the plurality of chemical sensors outputs an associated sensor value, wherein each of the plurality of chemical sensors initiates detection of the substance at a different time;
- and
- calibrating the chemical sensing system based on two or more sensor values at a current time and two or more sensor values at the time at which one of the chemical sensors is initiated, wherein calibrating the chemical sensing system comprises determining a calibration value proportional to the ratio of (i) the product of a first sensor value associated with a first chemical sensor of the plurality of chemical sensors at the current time and the difference between the first sensor value and a second sensor value associated with a second chemical sensor of the plurality of chemical sensors at a time at which the second chemical sensor initiates detection of the substance and (ii) the difference between the first sensor value at the current time and the second sensor value at the current time.
(canceled)
A system for detecting a substance, the system comprising:
- a first chemical sensor configured to initiate detection of the substance at a first time;
- a second chemical sensor configured to initiate detection of the substance at a second time;
- and
- a processing device in operable communication with the first chemical sensor and the second chemical sensor, wherein the processing device is configured to determine a calibration value based on sensor values from the first chemical sensor and the second chemical sensor at the second time and sensor values from the first chemical sensor and the second chemical sensor at a current time by determining the ratio of (i) the product of the first sensor value at the current time and the difference between the first sensor value at the second time and the second sensor value at the second time and (ii) the difference between the first sensor value at the current time and the second sensor value at the current time.
(canceled)
Dependencies are inferred from the claim text.