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. 05, 1987
Filed:
Jul. 26, 1984
Applicant:
Inventors:
Kiyoshi Himuro, Yokohama, JP;
Akihisa Narimatsu, Naka, JP;
Katsutoshi Mibu, Kamagays, JP;
Takamoto Yoshioka, Tokyo, JP;
Assignee:
Sony Magnescale Incorporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
324207 ; 324260 ; 324249 ; 324252 ; 360114 ;
Abstract
A detector head for use in a measuring device includes a plurality of constituent measuring elements arranged in at least two blocks, each block producing an output signal of equal amplitude, and a phase shifter provided to shift the relative phases of the output signals of the blocks to have a predetermined relative phase difference, whereby selected higher-order harmonic components are cancelled from the resultant signal formed by summing the signals produced by the separate blocks of constituent elements.