Method for operating a micromechanical z-accelerometer
OwnerKay Hammer, Axel Franke +1inventors
InventorsKay Hammer, Axel Franke, Sebastian Guenther
Life of this patent
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Abstract
A method for operating a micromechanical z-accelerometer. The method includes applying a test signal to an electrode in order to induce a defined displacement of a rocker of the z-accelerometer during operation of the z-accelerometer; detecting the displacement of the rocker and converting the displacement into an acceleration value; and evaluating the acquired acceleration value by determining a difference between the acquired acceleration value and an initial acceleration value acquired in a manufacturing process, a difference between the acquired acceleration value and the initial acceleration value being compared to a defined threshold value and assessed.
Claims8
A method for operating a micromechanical z-accelerometer, comprising:
- applying a test signal to an electrode to induce a defined displacement of a rocker of the z-accelerometer during operation of the z-accelerometer;
- detecting the displacement of the rocker and converting the displacement into an acceleration value;
- and
- evaluating the acquired acceleration value by determining a difference between the acquired acceleration value and an initial acceleration value acquired in a manufacturing process, a difference between the acquired acceleration value and the initial acceleration value being compared to a defined threshold value and assessed.
A micromechanical z-accelerometer, comprising:
- a determination device to determine acceleration values of the z-accelerometer;
- and
- a recognition device functionally connected to the determination device and designed to recognize and assess a difference between an initial acceleration value and an acceleration value acquired during operation of the z-accelerometer.
A non-transitory computer readeable storage medium on which is stored a computer program for operating a micromechanical z-accelerometer, the computer program, when executed by a control device, causing the control device to perform:
- applying a test signal to an electrode to induce a defined displacement of a rocker of the z-accelerometer during operation of the z-accelerometer;
- detecting the displacement of the rocker and converting the displacement into an acceleration value;
- and
- evaluating the acquired acceleration value by determining a difference between the acquired acceleration value and an initial acceleration value acquired in a manufacturing process, a difference between the acquired acceleration value and the initial acceleration value being compared to a defined threshold value and assessed.
Dependencies are inferred from the claim text.