Sensor with microelectro-mechanical oscillators
First Claim
Patent Images
1. A sensor comprising:
- a shuttle mass;
first and second masses vibrationally coupled to the shuttle mass, the first mass having a first resonant frequency in the absence of a first analyte, and a second resonant frequency after the exposure to the first analyte;
the second mass having a third resonant frequency in the absence of a second analyte, and a fourth resonant frequency after the exposure to the second analyte; and
a vibration sensor configured to detect a response of the shuttle mass.
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Abstract
A sensor is provided which is configured to detect the presence of multiple analytes, for example chemical or biological compounds, through the measurement of induced resonance shifts in a coupled array of microelectromechanical or micromechanical resonators.
35 Citations
27 Claims
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1. A sensor comprising:
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a shuttle mass; first and second masses vibrationally coupled to the shuttle mass, the first mass having a first resonant frequency in the absence of a first analyte, and a second resonant frequency after the exposure to the first analyte;
the second mass having a third resonant frequency in the absence of a second analyte, and a fourth resonant frequency after the exposure to the second analyte; anda vibration sensor configured to detect a response of the shuttle mass. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A sensor comprising:
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a shuttle mass; first and second beams vibrationally coupled to the shuttle mass, the first beam having a first resonant frequency in the absence of a first analyte, and a second resonant frequency after the exposure to the first analyte;
the second beam having a third resonant frequency in the absence of a second analyte, and a fourth resonant frequency after the exposure to the second analyte;a vibration sensor configured to detect vibration of the shuttle mass; and an actuator configured to drive the shuttle mass. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A sensor comprising:
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a support mass vibrationally coupled to a base; first and second beams vibrationally coupled to the support mass, the first beam having a first resonant frequency in the absence of a first analyte, and a second resonant frequency in the presense the first analyte;
the second beam having a third resonant frequency in the absence of a second analyte, and a fourth resonant frequency in the presence of the second analyte;a vibration sensor configured to detect vibration of the support mass; and an actuator configured to drive the support mass. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A sensor comprising:
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a sensing element having at least two vibrating members, each with a respective first resonant frequency, wherein the vibrating members are configured to exhibit a change in vibration response the presence of a plurality of analytes; a drive element coupled to the sensing element, said drive element configured to apply force to the sensing element to induce a vibration within the sensing element; and a sensor configured to measure changes of a resonant frequency of at least one of the vibrating members. - View Dependent Claims (27)
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Specification