Veranstaltung: Laser Metrology

Nummer:
139930
Lehrform:
Vorlesung mit integrierten Übungen
Medienform:
rechnerbasierte Präsentation, Tafelanschrieb
Verantwortlicher:
Prof. Dr.-Ing. Andreas Ostendorf
Dozent:
Jun. Prof. Dr. rer. nat. Evgeny Gurevich (Maschinenbau)
Sprache:
Englisch
SWS:
4
LP:
6
Angeboten im:
Wintersemester

Termine im Wintersemester

  • Vorlesung m. int. Übung Donnerstags: ab 10:00 bis 14.00 Uhr im ID 05/158

Prüfung

Termin nach Absprache mit dem Dozenten.

Prüfungsform:mündlich
Prüfungsanmeldung:FlexNow
Dauer:30min

Ziele

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.

Inhalt

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.

Voraussetzungen

none

Empfohlene Vorkenntnisse

  • Basic knowledge of physics, mathematics and engineering
  • Basics in electrical engineering

Literatur

  1. Kreis, Thomas "Handbook of Holographic Interferometry: Optical and Digital Methods", Wiley-VCH, 2004
  2. Yoshizawa, Toru "Handbook of Optical Metrology: Principles and Applications", CRC Press, 2009