Functional Element for Arranging in Front of the Active Measuring Region of a Sensor Element
AssigneeRobert Bosch GmbH
InventorsRichard Fix, Andreas Krauss
Life of this patent
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Abstract
A functional element positioned in front of an active detection region of a sensor element has a compact main body with a gas-side surface, a sensor-side surface, and at least two functional channels located between the gas-side surface and the sensor-side surface. The functional channels have a functionality that is different from one another with respect to a gas that can pass through. Such a functional element allows particularly variable operation of a sensor with great long-term stability.
Claims13
A functional element, comprising:
- a main body that includes:
- a gas-side surface;
- and
- a sensor-side surface;
- and
- at least two functional channels located between the gas-side surface and the sensor-side surface, wherein each of the at least two functional channels has a functionality that is different from one another with respect to a gas that can pass through;
- wherein the functional element is configured to be positioned in front of an active detection region of a sensor element.
A sensor arrangement, comprising:
- a sensor element with an active detection surface;
- and
- at least one functional element positioned upstream of the active detection surface with respect to a direction of flow, and comprising:
- a main body that includes:
- a gas-side surface;
- and
- a sensor-side surface;
- and
- at least two functional channels located between the gas-side surface and the sensor-side surface, wherein each of the at least two functional channels has a functionality that is different from one another with respect to a gas that can pass through;
A method of using a sensor arrangement in a chemosensor, comprising:
- positioning the sensor arrangement in a flow of a gas to be measured;
- passing the gas through each of at least two functional channels of a functional element, wherein:
- the functional element comprises a main body that include a gas-side surface and a sensor-side surface such that the at least two functional channels are located between the gas-side surface and the sensor-side surface;
- and
- each of the at least two functional channels has a functionality that is different from one another with respect to the gas;
- and
- measuring the gas at respective independent locally limited detection region of an active detection surface of a sensor element corresponding to each of the at least two functional channels.
Dependencies are inferred from the claim text.