Test strip with magneto-elastic-resonance sensor
First Claim
1. A test strip for testing a characteristic of a fluid sample applied to the test strip, the test strip comprising:
- a body of wicking material having a first surface and a second surface;
a cavity within the wicking material; and
at least one magneto-elastic-resonance sensor at least partially positioned within the cavity.
2 Assignments
0 Petitions
Accused Products
Abstract
A test meter system for testing a characteristic of a fluid, the test meter system including a test meter having a housing with an opening adapted to accept a test strip, an interrogation coil within the housing, a pick-up coil within the housing, and a test strip including at least one magneto-elastic-resonance sensor. When the test strip is within the opening, the interrogation coil may utilize magneto-elastic-resonance technology to interrogate the magneto-elastic-resonance sensor and the pick-up coil may be used to sense a resultant oscillation frequency of the magneto-elastic-resonance sensor, the resultant oscillation frequency associated with the characteristic. The test strip may include a plurality of sensors. The sensors may be coated with a coating sensitive to a characteristic of the fluid, where the interrogation reveals information about the fluid characteristic.
19 Citations
20 Claims
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1. A test strip for testing a characteristic of a fluid sample applied to the test strip, the test strip comprising:
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a body of wicking material having a first surface and a second surface; a cavity within the wicking material; and at least one magneto-elastic-resonance sensor at least partially positioned within the cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A test strip for testing a characteristic of a fluid sample applied to the test strip, the test strip comprising:
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a body of wicking material having a first surface and a second surface; a cavity within the wicking material, the cavity extending at least partially between the first and second surfaces of the body; at least one first magneto-elastic-resonance sensor positioned within the cavity; and at least one second magneto-elastic-resonance sensor positioned outside of the cavity.
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18. A method of interrogating a test strip to identify a characteristic of a fluid sample, the method comprising:
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applying a fluid sample to a test strip; permitting the fluid sample to flow into a cavity within a wicking layer of the test strip so as to wet a magneto-elastic-resonance sensor positioned at least partially within the cavity; transmitting an electromagnetic field into the test strip so as to excite the magneto-elastic resonance sensor; obtaining a resultant oscillation frequency of the sensor; and identifying a characteristic of the fluid sample based on the resultant oscillation frequency. - View Dependent Claims (19, 20)
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Specification