SENSOR DETECTING A ROTATION OF AN OBJECT
First Claim
1. A sensor for detecting a rotation rate of an object, comprising:
- an encoder element, which is configured to oscillate at an angle to the axis of rotation of the rotation rate to be detected at an excitation frequency on a restoring element, which is fastened in a stationary manner on the object, so that the encoder element is deflected, as a result of the Coriolis force, at an angle to the axis of rotation and at an angle to the oscillation direction in a reaction direction at a reaction frequency, anda measurement pickup, which is configured to detect the oscillation in the reaction direction,wherein the oscillatory encoder element is designed such that a comparison of a temperature-dependent shift of a frequency interval between the excitation frequency and the reaction frequency and a temperature-dependent location of the encoder element on the object meets a predetermined condition.
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Accused Products
Abstract
A sensor for detecting a rotation rate of an object, including: a sensor element, which is designed to vibrate at an angle to the rotation axis of the rotation rate to be detected at an excitation frequency on a resetting element fastened in a spatially fixed manner to the object, such that the sensor element is deflected at a reaction frequency in a reaction direction at an angle to the rotation axis and at an angle to the vibration direction owing to the Coriolis force; and a measuring transducer, which is designed to detect the vibration in the reaction direction wherein the vibratable sensor element is formed in such a manner that a comparison of a temperature-dependent displacement of a frequency spacing between the excitation frequency and the reaction frequency and a temperature-dependent position of the sensor element on the object satisfies a predefined condition.
9 Citations
12 Claims
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1. A sensor for detecting a rotation rate of an object, comprising:
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an encoder element, which is configured to oscillate at an angle to the axis of rotation of the rotation rate to be detected at an excitation frequency on a restoring element, which is fastened in a stationary manner on the object, so that the encoder element is deflected, as a result of the Coriolis force, at an angle to the axis of rotation and at an angle to the oscillation direction in a reaction direction at a reaction frequency, and a measurement pickup, which is configured to detect the oscillation in the reaction direction, wherein the oscillatory encoder element is designed such that a comparison of a temperature-dependent shift of a frequency interval between the excitation frequency and the reaction frequency and a temperature-dependent location of the encoder element on the object meets a predetermined condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 11, 12)
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8. A method for detecting a rotation rate of an object using an encoder element, which is configured to oscillate at an angle to the axis of rotation of the rotation rate to be detected at an excitation frequency on a restoring element, which is fastened in a stationary manner on the object, so that the encoder element is deflected, as a result of the Coriolis force, at an angle to the axis of rotation and at an angle to the oscillation direction in a reaction direction at a reaction frequency, comprising
detecting the oscillation in the reaction direction, determining the rotation rate based on the detected oscillation, and wherein the oscillatory encoder element is designed such that a comparison of a temperature-dependent shift of a frequency interval between the excitation frequency and the reaction frequency and a temperature-dependent location of the encoder element on the object meets a predetermined condition.
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9. A control device for carrying out a method for detecting a rotation rate of an object using an encoder element, which is configured to oscillate at an angle to the axis of rotation of the rotation rate to be detected at an excitation frequency on a restoring element, which is fastened in a stationary manner on the object, so that the encoder element is deflected, as a result of the Coriolis force, at an angle to the axis of rotation and at an angle to the oscillation direction in a reaction direction at a reaction frequency, comprising
detecting the oscillation in the reaction direction, determining the rotation rate based on the detected oscillation, and wherein the oscillatory encoder element is designed such that a comparison of a temperature-dependent shift of a frequency interval between the excitation frequency and the reaction frequency and a temperature-dependent location of the encoder element on the object meets a predetermined condition.
Specification