Sensor arrangement for contactless linear position detection

A sensor arrangement for contactless linear position detection, comprising:

• a target including a measuring transducer running along a measuring path;
• a magnetic field sensor arranged at a distance from the measuring transducer and arranged in a relatively movable manner along the measuring path, the magnetic field sensor configured to at least partially cover the measuring transducer,
• wherein the measuring transducer is magnetically conductive,
• wherein the magnetic field sensor includes a carrier having (i) at least one measuring sensor including a two-dimensional or three-dimensional detection range, and (ii) at least one permanent magnet configured to generate a local magnetic field,
• wherein magnetic flux of the local magnetic field is introduced into the measuring transducer,
• wherein the measuring transducer includes at least one air gap configured to influence the introduced magnetic flux based on a current position of the magnetic field sensor along the measuring path, and
• wherein the at least one measuring sensor is configured to detect a current direction of the local magnetic field;
• and
• an evaluation and control unit configured to evaluate the current direction of the local magnetic field in order to determine the current position of the magnetic field sensor based on the measuring path,
• wherein the at least one air gap has a predefined width and length, and
• wherein a longitudinal direction of the at least one air gap runs at a predefined angle with respect to the measuring path.

A sensor arrangement for contactless linear position detection, comprising:

• a target including a measuring transducer running along a measuring path;
• a magnetic field sensor arranged at a distance from the measuring transducer and arranged in a relatively movable manner along the measuring path, the magnetic field sensor configured to at least partially cover the measuring transducer,
• wherein the measuring transducer is magnetically conductive,
• wherein the magnetic field sensor includes a carrier having (i) at least one measuring sensor including a two-dimensional or three-dimensional detection range, and (ii) at least one permanent magnet configured to generate a local magnetic field,
• wherein magnetic flux of the local magnetic field is introduced into the measuring transducer,
• wherein the measuring transducer includes at least one air gap configured to influence the introduced magnetic flux based on a current position of the magnetic field sensor along the measuring path, and
• wherein the at least one measuring sensor is configured to detect a current direction of the local magnetic field;
• and
• an evaluation and control unit configured to evaluate the current direction of the local magnetic field in order to determine the current position of the magnetic field sensor based on the measuring path,
• wherein the at least one measuring sensor is arranged on a surface of the carrier facing the measuring transducer.