Patent ID: 8855266
Filing Date: 2014-10-07
Classification: G01L,G01N

Abstract:
1. An X-ray stress measurement apparatus comprising: optical imaging means for picking up an optical image of a sample; a display for displaying the optical image of the sample; input means capable of inputting positions on a screen of the display; an X-ray source for generating an X-ray; sample transporting means for moving the sample; X-ray detection means for detecting the X-ray exiting from the sample; measurement means for controlling the operation of the optical imaging means, the display, the input means, the X-ray source, the sample transporting means, and the X-ray detection means, determining measurement positions of the sample on the basis of the positions indicated by the input means, and measuring the determined measurement positions of the sample; stress computation means for computing the stress at the measurement positions of the sample on the basis of an output signal from the X-ray detection means; and image formation means for causing the optical image of the sample, the measurement positions of the sample, the absolute value of the stress, and the direction of the stress to be displayed on the same screen of the display.