Sensing system and method
First Claim
1. A system comprising:
- an impedance sensor having a sensing film configured to be in contact with a fuel flowing to a dual fuel engine, the impedance sensor including electrodes and a sensing region circuit that is configured to generate electrical stimuli across the sensing film; and
one or more processors configured to receive electrical signals from the impedance sensor, the electrical signals representative of impedance responses of the sensing film to the electrical stimuli, the one or more processors configured to analyze the impedance response and determine an amount of one or more of methane or ethane in the fuel based on the impedance responses.
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Accused Products
Abstract
A system includes an impedance gas sensor configured to be in contact with one or more hydrocarbons. The impedance sensor includes electrodes and a sensing region circuit that is configured to have a sensing material and to generate electrical stimuli to the sensing material upon exposure to one or more hydrocarbons at one or more of a reduced heater voltage or a reduced sensing region temperature as compared to a prescribed heater voltage or a prescribed sensing region temperature. The system also includes one or more processors configured to receive electrical signals from the sensor, where the electrical signals are representative of impedance responses of the sensing material to one or more hydrocarbons. The one or more processors also are configured to analyze the impedance responses and determine an amount of at least one hydrocarbon of interest in the one or more hydrocarbons.
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Citations
27 Claims
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1. A system comprising:
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an impedance sensor having a sensing film configured to be in contact with a fuel flowing to a dual fuel engine, the impedance sensor including electrodes and a sensing region circuit that is configured to generate electrical stimuli across the sensing film; and one or more processors configured to receive electrical signals from the impedance sensor, the electrical signals representative of impedance responses of the sensing film to the electrical stimuli, the one or more processors configured to analyze the impedance response and determine an amount of one or more of methane or ethane in the fuel based on the impedance responses. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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an impedance gas sensor configured to be in contact with one or more hydrocarbons, the impedance sensor including electrodes and a sensing region circuit that is configured to have a sensing material and to generate electrical stimuli to the sensing material upon exposure to one or more hydrocarbons at one or more of a reduced heater voltage or a reduced sensing region temperature as compared to a prescribed heater voltage or a prescribed sensing region temperature; and one or more processors configured to receive electrical signals from the sensor, the electrical signals representative of impedance responses of the sensing material to one or more hydrocarbons, the one or more processors configured to analyze the impedance responses and determine an amount of at least one hydrocarbon of interest in the one or more hydrocarbons. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method comprising:
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placing an impedance gas sensor in contact with one or more hydrocarbons; applying, using a sensing region circuit and across electrodes of the impedance sensor, electrical stimuli to the sensing material upon exposure to one or more hydrocarbons at a reduced heater temperature; and analyzing electrical signals from the impedance sensor that are representative of impedance responses of the sensor to the electrical stimuli, the impedance responses analyzed to determine an amount of a hydrocarbon of interest in the one or more hydrocarbons. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification