Chemically sensitive transducer
First Claim
1. A chemically sensitive transuducer for selectively determining a chemical property of a fluid and providing a measurement signal to an amplifying circuit that contains a field-effect transistor, comprising;
- a measuring electrode coupled to the amplifying circuit and providing a measurement signal to the amplifying circuit;
a membrane covering said measuring electrode, said membrane being sensitive to a specified chemical property;
a carrier plate composed of an insulating material and having first and second sides, with said measuring electrode being arranged said first side and the amplifying circuit being arranged on said second side, said carrier plate including a conductor extending between said first and second sides, said conductor electrically coupling said measuring electrode to the amplifying circuit; and
means for encapsulating the transducer to isolate said transducer from the fluid except for said membrane.
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Accused Products
Abstract
A chemically sensitive transducer for selectively determining a chemical property of a fluid and providing a measurement signal to an amplifying circuit. The transducer has a measuring electrode coupled to the amplifying circuit and provides a measurement signal to the amplifying circuit. A membrance covers the measuring electrode, this membrane being sensitive to a specified chemical property. A carrier plate, with first and second sides, has the measuring electrode arranged on its first side and the amplifying circuit on its second side. The carrier plate has a conductor extending between the first and second sides which electrically couples the measuring electrode and the amplifying circuit.
27 Citations
16 Claims
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1. A chemically sensitive transuducer for selectively determining a chemical property of a fluid and providing a measurement signal to an amplifying circuit that contains a field-effect transistor, comprising;
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a measuring electrode coupled to the amplifying circuit and providing a measurement signal to the amplifying circuit; a membrane covering said measuring electrode, said membrane being sensitive to a specified chemical property; a carrier plate composed of an insulating material and having first and second sides, with said measuring electrode being arranged said first side and the amplifying circuit being arranged on said second side, said carrier plate including a conductor extending between said first and second sides, said conductor electrically coupling said measuring electrode to the amplifying circuit; and means for encapsulating the transducer to isolate said transducer from the fluid except for said membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A chemically sensitive transducer for selectively determining a chemical property of a fluid and providing a measurement signal to an amplifying circuit that contains a field-effect transistor, comprising:
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A measuring electrode coupled to the amplifying circuit and providing a measurement signal to the amplifying circuit; a membrane covering said measuring electrode, said membrane being sensitive to a specified chemical property; a carrier plate composed of an insulating material and having first and second sides, with said measuring electrode being arranged on said first side and the amplifying circuit being arranged on said second side, said carrier plate including a borehole extending between said first and second sides, said borehole including a conductor extending between said first and second sides, said conductor electrically coupling said measuring electrode to the amplifying circuit; and means for encapsulating the transducer to isolate said transducer from the fluid except for said membrane.
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Specification