Grasping method of displacement mode by holography interference method
专利汇可以提供Grasping method of displacement mode by holography interference method专利检索，专利查询，专利分析的服务。并且PURPOSE: To determine the degree automatically by setting the light emission of a primary pulse on the basis of the dynamic response characteristic of a body to be measured, and performing image operation while aiming at the movement of interference fringes of the same degree with time on the basis of images obtained while delaying the light emission of a secondary pulse successively.
CONSTITUTION: When a cantilever oscillates in tertiary elastic mode, the time of primary exposure is fixed to constant time t
0 , the secondary exposure is carried out at optional time intervals Δt
1 and Δt
2 from t
0 to record a double exposure hologram, and the time interval Δt
2 is so set that the movement extent of interference fringes of the same degree is a half minimum interference fringe intervals for an interference fringe density distribution of images of Δt
1 . Then, a fringe image is processed to obtain line images (b) and (c). Further, the correspondence between the closest interference fringes with the time intervals Δt
1 and Δt
2 is determined and the movement direction (arrow) of interference fringes of the same degree are coded into ±1. Further, there is a node in an area where the loop of oscillation changes from -1 to +1 in an area of a change in sign from +1 to -1, and the degree is determined automatically.
COPYRIGHT: (C)1986,JPO&Japio，下面是Grasping method of displacement mode by holography interference method专利的具体信息内容。
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