Rotatable electro-optic measurement tapping device
AssigneeMesserschmitt-Bolkow-Blohm GmbH
InventorDietmar Krieger
Life of this patent
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Abstract
The electro-optic measurement tapping device for a motion sensor movably arranged in a receptacle which can be rotated about a shaft, the deflection of the motion sensor from an initial position being detected and measured. The motiond detector has, on a side facing the rotating shaft of the receptacle, a scale provided with different optical characteristics in code form. In an axial bore of the rotating shaft, at least one fiber-optical light guide is arranged, one end of which is directed to the scale and the other end of which is directed to an electro-optic component, the electro-optic component being fixedly connected with a housing part bearing the rotating shaft of the receptacle.
Claims12
A rotatable electro-optic measurement tapping arrangement for sue with a motion sensor for measuring deflection of said motion sensor form a starting position, said arrangement comprising:
- a receptacle, in which said motion sensor is movably arranged, said receptacle being rotatable about a shaft;
- a scale affixed to a side of said motion sensor facing said shaft, said scale comprising an optically encoded pattern;
- and
- a fiber-optic light guide arranged in an axial bore of said shaft, a first end of said light guide being directed to the scale and a second end of said light guide being directed to an electro-optic component affixed to a housing bearing said shaft of the receptacle;
- wherein said electro-optic component comprises least one photosensitive detector with a ring-shaped receiving surface arranged concentrically with respect to the rotating shaft of the receptacle, and a light source arranged in the center of said ring shaped receiving surface;
- and
- wherein said electro-optic component comprises at least one additional detector with a ring-shaped receiving surface divided into active and non-active segments.
A rotatable electro-optic measurement tapping arrangement for use with a motion sensor for measuring deflection of said motion sensor from a starting position, said arrangement comprising:
- a receptacle, in which said motion sensor is movably arranged, said receptacle being rotatable about a shaft;
- a scale affixed to a side of said motion sensor facing said shaft, said scale comprising an optically encoded pattern;
- and
- a fiber-optic light guide arranged in an axial bore of said shaft, a first end of said light guide being directed to the scale and a second end of said light guide being directed to an electro-optic component affixed to a housing bearing said shaft of the receptacle;
- wherein said light guide in the bore of the receptacle shaft has an axially extending first optical fiber and at least one eccentrically extending second optical fiber, said axially extending optical fiber being optically coupled to a light source and said eccentrically extending second optical fiber being coupled to a photosensitive detector of the electro-optic component;
- wherein said electro-optic component comprises least one photosensitive detector with a ring-shaped receiving surface arranged concentrically with respect to the rotating shaft of the receptacle, and a light source arrange din the center of said ring shaped receiving surface;
- and
- wherein said electro-optic component comprises at least one additional detector with a ring-shaped receiving surface divided into active and non-active segments.
A rotatable electro-optic measurement tapping arrangement for use with a motion sensor for measuring deflection of said motion sensor from a starting position, said arrangement comprising:
- a receptacle, in which said motion sensor is movably arranged, said receptacle being rotatable about a shaft;
- a scale affixed to a side of said motion sensor facing said shaft, said scale comprising an optically encoded pattern;
- and
- a fiber-optic light guide arranged in an axial bore of said shaft, a first end of said light guide being directed to the scale and a second end of said light guide being directed to an electro-optic component affixed to a housing bearing said shaft of the receptacle;
- and
- wherein said light guide has two eccentrically extending second optical fibers arranged on opposite sides of said first optical fiber, said receptive second optical fibers providing optical coupling between first and second portions of the coded scale on the measurement sensor and two photosensitive detectors of said electro-optic component, each assigned to a portion of said scale and each having a ring-shaped receiving surface.
A rotatable electro-optic measurement tapping arrangement for sue with a motion sensor for measuring deflection of said motion sensor from a starting position, said arrangement comprising:
- a receptacle, in which said motion sensor is movably arranged, said receptacle being rotatable about a shaft;
- a scale affixed to a side of said motion sensor facing said shaft, said scale comprising an optically encoded pattern;
- and
- a fiber-optic light guide arranged in an axial bore of said shaft, a first end of said light guide being directed to the scale and a second end of said light guide being directed to an electro-optic component affixed to a housing bearing said shaft of the receptacle;
- wherein said light guide in the bore of the receptacle shaft has an axially extending first optical fiber and at least one eccentrically extending second optical fiber, said axially extending optical fiber being optically coupled to a light source, and eccentrically extending optical fiber being coupled to a photosensitive detector of the electro-optic component;
- and
- wherein said light guide has two eccentrically extending second optical fibers arranged on opposite sides of said first optical fibers, said respective second optical fibers providing optical coupling between first and second portions of the coded scale on the measurement sensor and two photosensitive detectors of said electro-optic component, each assigned to a portion of said scale and each having a ring-shaped receiving surface.
A rotatable electro-optic measurement tapping arrangement for sue with a motion sensor for measuring deflection of said motion sensor from a starting position, said arrangement comprising:
- a receptacle, in which said motion sensor is movably arranged, said receptacle being rotatable about a shaft;
- a scale affixed to a side of said motion sensor facing said shaft, said scale comprising an optically encoded pattern;
- and
- a fiber-optic light guide arranged in an axial bore of said shaft, a first end of said light guide being directed to the scale and a second end of said light guide being directed to an electro-optic component affixed to a housing bearing said shaft of the receptacle;
- wherein said electro-optic component comprises least one photosensitive detector with a ring-shaped receiving surface arranged concentrically with respect to the rotating shaft of the receptacle, and a light source arranged in the center of said ring shaped receiving surface;
- and
- wherein said light guide has two eccentrically extending second optical fibers arranged on opposite sides of said first optical fibers, said respective second optical fibers providing optical coupling between first and second portions of the coded scale on the measurement sensor and two photosensitive detectors of said electro-optic component, each assigned to a portion of said scale and each having a ring-shaped receiving surface.
A rotatable electro-optic measurement tapping arrangement for use with a motion sensor for measuring deflection of said motion sensor form a starting position, said arrangement comprising:
- a receptacle, in which said motion sensor is movably arranged, said receptacle being rotatable about a shaft;
- a scale affixed to a side of said motion sensor facing said shaft, said scale comprising an optically encoded pattern;
- and
- a fiber-optic light guide arranged in an axial bore of said shaft, a first end of said light guide being directed to the scale and a second end of said light guide being directed to an electro-optic component affixed to a housing bearing said shaft of the receptacle;
- wherein said light guide in the bore of the receptacle shaft has an axially extending first optical fiber and at least one eccentrically extending second optical fiber, said axially extending optical fiber being optically coupled to a light source and said eccentrically extending second optical fiber being coupled to a photosensitive detector of the electro-optic component;
- wherein said electro-optic component comprises least one photosensitive detector with a ring-shaped receiving surface arranged concentrically with respect to the rotating shaft of the receptacle, and a light source arranged in the center of said ring shaped receiving surface;
- and
- wherein said light guide has two eccentrically extending second optical fibers arranged on opposite sides of said first optical fibers, said respective second optical fibers providing optical coupling between first and second portions of the coded scale on the measurement sensor and two photosensitive detectors of said electro-optic component, each assigned to a portion of said scale and each having a ring-shaped receiving surface.
A rotatable electro-optic measurement tapping arrangement for use with a motion sensor for measuring deflection of said motion sensor form a starting position, said arrangement comprising:
- a receptacle, in which said motion sensor is movably arranged, said receptacle being rotatable about a shaft;
- a scale affixed to a side of said motion sensor facing said shaft, said scale comprising an optically encoded pattern;
- and
- a fiber-optic light guide arranged in an axial bore of said shaft, a first end of said light guide being directed to the scale and a second end of said light guide being directed to an electro-optic component affixed to a housing bearing said shaft of the receptacle;
- wherein the ring-shaped receiving surface of the detector is divided into active and non-active segments is connected by way of an optical fiber directly with the central first optical fiber.
A rotatable electro-optic measurement tapping arrangement for use with a motion sensor for measuring deflection of said motion sensor form a starting position, said arrangement comprising:
- a receptacle, in which said motion sensor is movably arranged, said receptacle being rotatable about a shaft;
- a scale affixed to a side of said motion sensor facing said shaft, said scale comprising an optically encoded pattern;
- and
- a fiber-optic light guide arranged in an axial bore of said shaft, a first end of said light guide being directed to the scale and a second end of said light guide being directed to an electro-optic component affixed to a housing bearing said shaft of the receptacle;
- wherein said electro-optic component comprises least one photosensitive detector with a ring-shaped receiving surface arranged concentrically with respect to the rotating shaft of the receptacle, and a light source arranged in the center of said ring shaped receiving surface;
- and
- wherein the ring-shaped receiving surface of the detector divided into active and non-active segments is connected by way of an optical fiber directly with the central first optical fiber.
Dependencies are inferred from the claim text.