Overview of dynamic interferometry studies
Dynamic interferometry is a technique that uses synchronous phase shifting to achieve time-varying phase transient measurement, and airborne carrier frequency phase shift is the main means to achieve dynamic interferometry. Dynamic interferometry has excellent vibration resistance compared to traditional interferometry, and truly realizes high-precision interferometry from the laboratory to the workshop online environment measurement, which has become an indispensable detection technology for large-aperture optical manufacturing, adaptive optical systems, aerospace optical systems and other occasions, and can provide solutions for high-precision measurement of other transient phase fields, with strong versatility
Feature description
The dynamic interferometry equipment developed by Fuxin Technology and the Institute of Optics of the Chinese Academy of Sciences has the characteristics of fast exposure transient phase shift, which can meet the online measurement under the long optical cavity of large optical components. The device consists of a highly stable interferometry optical system and high-precision phase measurement software. Equipped with frequency-stabilized lasers; The use of accurate equipment and calibration technology ensures the accuracy of the measurement results to the greatest extent; The unique phase shift algorithm can realize the fast and high-precision demodulation of the dynamic phase; The measurement software has rich error analysis, data processing report generation and other functions to meet the general optical measurement needs.
Advantages: The measuring instrument size is 26cm*12cm*16cm, which is small and easy to adjust; No vibration isolation platform is required, reducing the impact of airflow disturbances
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Optical surface shape interferometry equipment is the most basic measurement equipment in the field of optical processing, which is indispensable and in great demand on the optical production line.
Occasions of use
- Large-bore aspherical optical measurement/online inspection of optical parts in a workshop environment
- Light intensity environmental disturbance analysis
- Naturally should be optical systems
- Aerospace optical system tuning
- Communications, medical, material manufacturing, lighting, measuring instruments and other industries
- Wafer wafers, single crystal silicon with LED substrates, and cell substrate surface surface shape inspection key measurement equipment
- Space/ground-based telescopes, additive manufacturing, aviation, aerospace and other large precision systems and major technical equipment key core technologies
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Configure the parameters
- Instrument: Anti-vibration interferometer
- Camera: High-resolution variability camera
- Resolution: 1K*1K/2K*2K, 24fps >
- Laser: Frequency-stabilized laser wavelength 632.8nm
- Maximum light intensity length: >50m
- Light aperture: 10mm/50mm/100mm can be customized
- Polarized state: Circular polarized light
- Pupil magnification: Fixed value
- Stripe contrast: user adjustable
- Data format: dat,.xyz,.mat,,txt…..
- Computer operating system: Windows 10 (64bit)/Windows XP operation manual; Anti-vibration time domain phase shift measurement mode; Exposure control, gain control, sampling frequency setting; Stripe display and Marks function; Zenike series display, phase contrast analysis; Data processing (addition, subtraction, average) preservation; Report generation;
- Size: 26cm*12cm*16cm
- Weight: 11kg
- Power consumption: less than 750W
- Operating humidity range: 15 to 30°c (59-86F)
- System performance: RMS repeatability < 0.3nm RMS 2σ – direct deduction of system error <3nm
