High-performance arduino-based interferometric quadrature phase-shift detection system with 1 nm resolution
Source abstract
Abstract
A quadrature phase-shift detection system for interferometry has been conceptualized and evaluated. The main components, a microcontroller and two photodetectors, make a versatile low-cost detection system for displacement measurements or more generally phase-change measurements. The system is capable of sampling at 5 kHz with a spatial resolution of 1 nm.
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Research context
OpenAlex topics: Advanced Fiber Optic Sensors · Advanced Measurement and Metrology Techniques · Advanced Fiber Laser Technologies
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Affiliations
Department of Applied Physics, KTH Royal Institute of Technology , Roslagstullsbacken 21, Stockholm 106 91, Sweden
Funding
Swedish Foundation for Strategic Research
References (10)
Show source-provided references
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10. See https://github.com/mukogit/QPSdetectionsystem for a detailed schematic of the electrical circuit, .stl-files to 3D-print the unit and the necessary software to run the detection system.