Tao Hua

TL;DR: A single axle bidirectional symmetry stretch testing machine belongs to the experimental mechanics equipment technology field, including: the stepby-steps motor 11, the step-by-step motor controller, the strength sensor, the wormwheel, the worms, the ball bearing screw mandre, the left nut, the right nut, linear slideway, the axletree, the base 1, the shaft coupling, the testing sample holding device.

TL;DR: In this article, a high temperature moire interference deformation measuring system is presented for high precision timing measuring for u and v displacement fields under the high temperature condition, and uses the green light lighting to avoid the hot radiation red light from affecting the measurement, and realizes the automatic measurement of a displacement field inside a surface through an optical switch.

TL;DR: In this paper, a two-dimensional optical rosette measurement method based on optical shearing is proposed, which includes steps of preparing rectangular optical rostte mark on surface of measured object by a hot embossing method, placing a four lenses in a measurement light path, introducing optical displacement to form an image with the displacement, calculating displacement of four mark points of optical Rosette in the image with displacement according to numeral related method, and calculating strain of rosetter region according to finite element method.

TL;DR: In this paper, the authors used standard raster specimen, using LSCM scanning moire method to obtain scan moire image, to proceed four steps phase shift processing to originality image though moire phase shift technology to obtain phase map, after unpackaging to obtain originality phase map according to phase and displacement field relation to obtain scanning perturbed field.