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:
May. 09, 1978
Filed:
Nov. 08, 1976
Orvar Dahle, Vesteras, SW;
Folke Von Knorring, Vesteras, SW;
Jan Nordvall, Vesteras, SW;
Sture Siby, Vesteras, SW;
ASEA Aktiebolag, Vasteras, SW;
Abstract
A transducer for magneto-elastic stress measurement is formed of a holder and a core of magneto-elastic material provided with coils to generate a flux in and sense flux alterations produced by stresses of the core. The core is formed of one or more plates firmly attached to the holder and designed to be attached to the measuring object. The core may consist of a single plate attached to the holder at four symmetrical points, or of a cross having four arms the ends of which are welded to a frame of magnetic material which is secured to the holder. The holder may also be in the form of a casing of magnetic material which protects the core and coils and serves as a magnetic return path for the fluxes. For applications where disturbing magnetic fields may occur in the measuring object, the casing is preferably made of non-magnetic material and provided with a frame of magnetic material as a return path for the flux.