The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2006
Filed:
Mar. 12, 2004
Teruo Mori, Tokyo, JP;
Teruo Mori, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A weight sensorhaving a simple structure and yet being capable of detecting load or pressure of an object to be measured in a short time and with high sensitivity and high precision. The sensor includes a first rotating shaftvertically and rotatably supported on a stage, a second rotating shaftaxially and coaxially connected to the first rotating shaftwith a magnetostrictive memberinterposed therebetween for rotatably supporting an objectto be measured, and a pickup coilfor detecting changes in magnetic permeability or remnant magnetization of the magnetostrictive member. Load or pressure of the objectis detected as the changes in magnetic permeability or remnant magnetization, which are caused by extension and contraction of the magnetostrictive member