Magnetostrictive torque sensor that prevents torque measurement error due to offset voltage
US-9983075-B2 · May 29, 2018 · US
Magnetostriction type torque detection sensor
US10697842B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10697842-B2 |
| Application number | US-201816113511-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2018 |
| Priority date | Oct 11, 2017 |
| Publication date | Jun 30, 2020 |
| Grant date | Jun 30, 2020 |
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Abstract
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A plurality of cores is arrayed while being inclined at a predetermined angle to an axis of a detected object, and end surfaces of two-side leg portions are attached in such a way as to face the detected object via an inner circumferential surface of an insulating tubular body.
First claim
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What is claimed is: 1. A magnetostriction type torque detection sensor comprising: an insulating tubular body concentrically attached in such a way as to cover an outer circumference of a detected object; a plurality of detection coils wound along a groove provided on a circumferential surface of the insulating tubular body; and a plurality of cores attached to the insulating tubular body in such a manner that each of the plurality of detection coils passes through a U-shaped space portion surrounded by a bridging portion connecting two-side leg portions, wherein the plurality of cores is arrayed while being inclined at a predetermined angle to an axis of the detected object and is attached in such a manner that end surfaces of the two-side leg portions face the detected object via an inner circumferential surface of the insulating tubular body. 2. The magnetostriction type torque detection sensor according to claim 1 , wherein the plurality of cores is attached to the insulating tubular body in such a manner that a magnetic path which is formed at the plurality of cores and the detected object is at an inclination angle of any one of ±45° to the axis of the detected object. 3. The magnetostriction type torque detection sensor according to claim 2 , wherein a first insulating tubular body to which the plurality of cores is attached in such a manner that a magnetic path which is formed at the detected object is formed at an inclination angle of +45° to the axis of the detected object and a second insulating tubular body to which the plurality of cores is attached in such a manner that a magnetic path which is formed at the detected object is formed at an inclination angle of −45° to the axis of the detected object are located close to each other in an axial direction.
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Frequently asked questions
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- What does patent US10697842B2 cover?
- A plurality of cores is arrayed while being inclined at a predetermined angle to an axis of a detected object, and end surfaces of two-side leg portions are attached in such a way as to face the detected object via an inner circumferential surface of an insulating tubular body.
- Who is the assignee on this patent?
- Shinano Kenshi Co
- What technology area does this patent fall under?
- Primary CPC classification G01L3/103. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 30 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).