course: Laser Metrology
- teaching methods:
- lecture with integrated tutorials
- computer based presentation, black board and chalk
- responsible person:
- Prof. Dr.-Ing. Andreas Ostendorf
- Prof. Dr. rer. nat. Evgeny Gurevich (Maschinenbau)
- offered in:
- winter term
dates in winter term
- start: Monday the 26.10.2020
- lecture with integrated tutorials Mondays: from 10:00 to 13.00 o'clock in Online
Die Angaben zu den Prüfungsmodalitäten (im WiSe 2020/2021 | SoSe 2021) erfolgen vorbehaltlich der aktuellen Situation. Notwendige Änderungen aufgrund universitärer Vorgaben werden zeitnah bekanntgegeben.
Date according to prior agreement with lecturer.
|Form of exam:||oral|
|Registration for exam:||FlexNow|
The students have gained knowledge of the principles and opportunities in laser based measurement. They understand the difference between non-coherent and coherent light and how to make use of coherence in interferometry. Third they understand how the different laser measurement principles can be used to measure physical or mechanical parameters.
Based on the solution of Maxwell´s equations the description of electromechanical waves is derived. In this context the important parameters temporal and spatial coherence are defined. Next, Mach-Zehnder and Michelson interferometers are presented and analyzed. In the following recording and reconstruction of holograms is described. By merging the two technologies holographic interferometry is introduced especially for applications in mechanics to analyze oscillations and vibrations. Another important principle is Doppler measurements. After introducing the Doppler-principle and Doppler interferometers/vibrometers Laser Doppler Anemometry (LDA) is presented in more detail. An important chapter in this lecture is also the understanding of important detectors like photodiodes or photomultipliers.
- Basic knowledge of physics, mathematics and engineering
- Basics in electrical engineering
- Kreis, Thomas "Handbook of Holographic Interferometry: Optical and Digital Methods", Wiley-VCH, 2004
- Yoshizawa, Toru "Handbook of Optical Metrology: Principles and Applications", CRC Press, 2009