Method and apparatus for the detection of the response of a sensing device
First Claim
Patent Images
1. A method for operating a sensing device comprising:
- providing a sensor having an electrical resistance that is adapted to change in response to a predetermined condition;
measuring the electrical resistance of the sensor at a first time;
measuring the electrical resistance of the sensor at a second time;
determining a rate of change of the electrical resistance between the first time and the second time; and
comparing the rate of change of the electrical resistance against a threshold value.
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Abstract
A method for operating a sensing device. The method comprising: a sensor film having an electrical resistance that is adapted to change in response to the presence of a predetermined condition; detecting the presence of the predetermined condition; measuring the electrical resistance of the sensor film at a first time; measuring the electrical resistance of the sensor film at a second time; determining a rate of change of the electrical resistance between the first time and the second time; and comparing the rate of change of the electrical resistance against a threshold value.
35 Citations
48 Claims
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1. A method for operating a sensing device comprising:
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providing a sensor having an electrical resistance that is adapted to change in response to a predetermined condition;
measuring the electrical resistance of the sensor at a first time;
measuring the electrical resistance of the sensor at a second time;
determining a rate of change of the electrical resistance between the first time and the second time; and
comparing the rate of change of the electrical resistance against a threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for operating a sensing device comprising:
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providing a sensor probe having an electrical resistance that is adapted to change in response to the presence of a target analyte;
measuring the electrical resistance of the sensor probe at a first time;
measuring the electrical resistance of the sensor probe at a second time;
sending signals representing the electrical resistance measurements to a control device; and
determining a rate of change of the signals with the control device. - View Dependent Claims (9, 10, 11, 12)
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13. A method for operating a sensing device comprising:
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providing a sensor probe comprising a sensor film having an electrical resistance that is adapted to change in response to the presence of a target analyte;
measuring the electrical resistance of the sensor film at a first time;
measuring the electrical resistance of the sensor film at a second time;
determining a rate of change of the electrical resistance between the first time and the second time; and
generating a signal representing the rate of change of the electrical resistance measured between the first and second time. - View Dependent Claims (14, 15, 16)
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17. A method for operating a sensing device comprising:
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providing an electrical component having an electrical resistance adapted to change in response to the presence of a flow of a fluid;
measuring the electrical resistance of the electrical component at a first time;
measuring the electrical resistance of the electrical component at a second time; and
determining a rate of change of the electrical resistance between the first time and the second time. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A sensor comprising:
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a sensor film having an electrical resistance that is adapted to change in response to the presence of a predetermined condition;
means for measuring the electrical resistance of the sensor film during a period of time;
means for generating a first signal corresponding to the electrical resistance measurements;
means for differentiating the first signal;
means for generating a second signal corresponding to the differential of the first signal; and
means for comparing the second signal with a threshold value and generating a third signal when the second signal exceeds the threshold value. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A sensing device comprising:
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a sensor probe;
an electrical component having an electrical resistance electrically connected to the sensor probe, the electrical resistance of the electrical component adapted to change in response to the presence of a predetermined condition; and
a control device electrically connected to the electrical component, the control device for measuring the electrical resistance of the electrical component during a time period, and generating a first signal corresponding to the electrical resistance measurements, and determining a rate of change of the first signal, and generating a second signal corresponding to the rate of change of the first signal, and comparing the second signal with a threshold value. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A sensor probe comprising:
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an electrical component having an electrical resistance electrically connected to the sensor probe, the electrical resistance of the electrical component adapted to change in response to the presence of a predetermined condition;
a measurement module that measures the electrical resistance of the electrical component during a time period and generates a first signal corresponding to the electrical resistance measurements;
a differentiator that determines a rate of change of the first signal and generates a second signal corresponding to the differential of the first signal; and
a comparator that compares the second signal with a threshold value. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification