Patent ID: 11940377
Assignee: SKYVERSE TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. A detection method, comprising:
generating a first polarized light and a second polarized light,
reflecting the first polarized light by a surface to be detected of a component to form a first echo light,
reflecting the second polarized light by the surface to be detected to form a second echo light, wherein there is a preset shear amount between the centers of the first polarized light and the second polarized light;
causing the first echo light and the second echo light to interfere to form a signal light by the light generating and modulating apparatus; and
acquiring light intensity information of the signal light along a plurality of different polarization directions by a first detection apparatus, or acquiring total light intensity information of the signal light and light intensity information along at least one polarization direction.