Sensor System and Method for Determining an Angle of Rotation
First Claim
1. A sensor arrangement for determining a location parameter of a body (K), which moves along a predefined path, at the location X, comprising:
- a first sensor, which produces a first sensor signal that is proportional to the value sin(X), located at a first sensor position relative to the value X;
a first amplifiers, which receives the first sensor signal that is proportional to sin(X) to generate a first control current;
an identically designed second sensor located at a second sensor position relative to the value X;
wherein the control current which is generated by the first amplifier is inputted to the second sensor.
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Accused Products
Abstract
A sensor arrangement for detecting an angle of rotation of a rotating body. At least one first sensor and one second sensor are connected to one another in a cascade in such a manner that the sensor signal from the first sensor is converted into a first control current which is applied as a bias current to the second sensor, the two angular dependencies of the first and second sensors being multiplied. This achieves improved interpolation when determining the angle of rotation on the basis of the sensor signals provided by the sensor arrangement.
17 Citations
18 Claims
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1. A sensor arrangement for determining a location parameter of a body (K), which moves along a predefined path, at the location X, comprising:
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a first sensor, which produces a first sensor signal that is proportional to the value sin(X), located at a first sensor position relative to the value X; a first amplifiers, which receives the first sensor signal that is proportional to sin(X) to generate a first control current; an identically designed second sensor located at a second sensor position relative to the value X; wherein the control current which is generated by the first amplifier is inputted to the second sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for determining the angle of rotation X of a body comprising the steps of:
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providing a first and a second sensor, which are connected in a cascade, are offset with respect to one another in the direction of rotation of the angle of rotation X to be detected and are each dependent on the sine of the angle of rotation X; converting the sensor signal provided by the first sensor into a bias current that is applied to the second sensor, the product of the applied bias current and the sin X function detected by the sensor being obtained as the sensor signal from the second sensor; and determining the value of X from the product in an evaluation unit. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification