OPTOELECTRONIC PHASE DELAY MEASUREMENT FOR A MODIFIED MICHELSON INTERFEROMETER

Thomas Bruns, Frank Blume, Kai Baaske, Mark Bieler
Abstract:
For the primary calibration of the phase response of accelerometers, the knowledge of the response delay of the reference, i.e. the laser interferometer is a decisive prerequisite. However, an experimental determination of the interferometric response time is not a simple task.
This contribution describes an opto-electronic set-up based on a femtosecond laser and originally developed for calibration of high speed sampling oscilloscopes, which enables a precise determination of the intrinsic delay of the photo detectors of a modified Michelson interferometer used at PTB.
Keywords:
phase response, laser interferometer, response time
Download:
IMEKO-TC22-2010-NP-008.pdf
DOI:
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Event details
IMEKO TC:
TC22
Event name:
TC22 Meeting 2010
Title:
2nd Meeting on Vibration Measurement (together with 21st TC3 Conference on Measurement of Force, Mass and Torque and TC5 HARDMEKO 2010)
Place:
Pattaya, THAILAND
Time:
21 November 2010 - 25 November 2010