High-precision laser modulation interference air refractive index absolute measurement device and method
A technology of laser modulation and absolute measurement, which is applied in the direction of measuring device, phase influence characteristic measurement, material analysis through optical means, etc. Limited measurement range and other problems, to achieve strong anti-environmental interference ability, improve phase demodulation accuracy and anti-interference ability, and simple structure
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0027] Below in conjunction with accompanying drawing, the present invention is described in detail, and concrete implementation is as follows:
[0028] The air refractive index measuring device embodied in the present invention is as figure 1 As shown, the air refractive index measuring device of the present invention is as figure 1 As shown, it includes a polarizing beam splitter 5, a first quarter glass 6, a first corner cube 7, a second quarter glass 8, a second corner cube 11 and a polarizer 12. The sinusoidal phase modulation interferometer also includes a single-frequency laser 1, an optical isolator 2, an electro-optic phase modulator 3, a lateral displacement beam splitter 4, a variable-length vacuum cavity 9, a linear displacement table 10, a first detector 13, A second detector 14 and a PGC phase demodulation module 15; a single-frequency laser 1, an optical isolator 2, an electro-optic phase modulator 3 and a lateral displacement are arranged at the input end of t...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com