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US 2015/0143923 A1Published application
Load sensor, load detector including load sensor, and method for detecting load
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsFumitaka SAITO, Masahisa NIWA
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Abstract
A load sensor includes a core having a hollow part provided therein and containing magnetic material and a coil attached to the core. A magnetic path along which a magnetic flux generated by a current flowing in the coil is formed along a circumference direction of the hollow part. The core has a load-receiving portion that receives a load at a surface of the core located in a crossing direction crossing a plane along which the magnetic path is formed.
Claims37
A load sensor comprising:
- a core having a hollow part provided therein, the core comprising magnetic material;
- and
- a coil attached to the core,
- wherein a magnetic path along which a magnetic flux generated by a current flowing in the coil is formed along a circumference direction of the hollow part, and
- wherein the core has a load-receiving portion that receives a load at a surface of the core located in a crossing direction crossing a plane along which the magnetic path is formed.
2 more elements
A load sensor comprising:
- one or more detecting units each including a core and a coil magnetically coupled to the core, the core being made of magnetic material;
- a first plate and a second plate that sandwich the one or more detecting units in a detecting direction between the first plate and the second plate;
- and
- an elastic body positioning the first plate and the second plate, the elastic body comprising material having smaller elasticity than the core,
- wherein the one or more detecting units are configured to receive a load applied from the first plate and the second plate in the detecting direction.
2 more elements
Dependencies are inferred from the claim text.