System for measuring shear stress in downhole tubulars
US-9690000-B2 · Jun 27, 2017 · US
Magnetostrictive sensor having crimped magnetostrictive strip for high temperature operation
US9170239B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9170239-B2 |
| Application number | US-201313792090-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 10, 2013 |
| Priority date | Mar 10, 2013 |
| Publication date | Oct 27, 2015 |
| Grant date | Oct 27, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A sensor for use in magnetostrictive testing of a structure. The sensor has a thin ferromagnetic strip with a series of parallel crimps across its width. A first wire coil is wrapped around the width of the strip and along its entire length, such that portions of wire that cross the bottom surface of the strip are located inside the crimps, and portions of wire that are wrapped across the top surface of the strip are between the crimps. The sensor further has a second coil wrapped around the length of the strip, or for pipeline applications, around the pipeline.
First claim
Opening claim text (preview).
What is claimed is: 1. A sensor system for use in magnetostrictive testing of a structure, by transmitting a guided wave and receiving a reflected signal, comprising: a thin strip made from ferromagnetic material, the strip having a bottom surface for placement against the structure and a top surface; wherein the strip has a series of crimps across its width, each crimp being a raised portion of the strip, raised toward or above the top surface of the strip, such that the strip…
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- G01N29/2412Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9170239B2 cover?
- A sensor for use in magnetostrictive testing of a structure. The sensor has a thin ferromagnetic strip with a series of parallel crimps across its width. A first wire coil is wrapped around the width of the strip and along its entire length, such that portions of wire that cross the bottom surface of the strip are located inside the crimps, and portions of wire that are wrapped across the top s…
- Who is the assignee on this patent?
- Southwest Res Inst
- What technology area does this patent fall under?
- Primary CPC classification G01N29/2412. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 27 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).