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. 02, 2017
Filed:
May. 08, 2015
Sintokogio, Ltd., Nagoya-shi, Aichi, JP;
Yoshiyasu Makino, Toyokawa, JP;
Hideaki Kaga, Toyokawa, JP;
SINTOKOGIO, LTD., Aichi, JP;
Abstract
To provide a surface property inspection apparatus, surface property inspection system, and surface property inspection method capable of inspecting the surface processing state of processed material subjected to surface processing such as shot-peening, heat treatment, or nitriding with high accuracy and low vulnerability to temperature changes in the inspection environment. Surface property inspection apparatus is furnished with a AC power supply, a AC bridge circuit, and an evaluation device; AC bridge circuit comprises variable resistor with which distribution ratio γ is variable, reference detector, and inspection detector. Inspection detector is furnished with a coil wound so as to oppose the surface property inspection region of object under inspection M, and by supplying AC power from AC power supply to coil, an eddy current is excited in object under inspection M. Thus the magnetic properties of object under inspection M can be detected, and inspection of surface properties based on the output signal from AC power supply is possible.