Abstruct-A theoretical analysis and experimental evaluation of a novel Mach-Zehnder interferometer (MZI), used as a recovery interferometer in an electronically scanned white-light interferometer is reported. This modified version of a MZI has the advantages of being very simple and compact, with high stability and does not introduce any spatial "misoverlapping" of the beams. In addition, since only one beamsplitter is employed in the interferometer (instead of the usual two used in a conventional MZI), the system is relatively easy to implement and at low cost. Furthermore, this configuration can be simply set to cover a wide range of optical path difference values by simply changing the angle and position of one of the mirrors, This gives the interferometer the advantage of being easily adapted for a range of different measurement applications.
The purpose of this study was to empirically re2s•te the probabJlity of correctly identifying targets in television imagery to the number of scanning lines traversing the target. Five different targets (scaled models) were investigated: an aircraft, oil storage tanks, a bridge and two buildings. Each target was located in different positions and orientations on a scaled terrain model. A television system scanned
A theoretical analysis and experimental evaluation of a novel Mach-Zehnder interferometer (MZI), used as a recovery interferometer in an electronically-scanned white-light interferometer is reported. This modified version of a MZI has the advantages of being very simple and compact, with high stability and does not introduce any spatial "misoverlapping" of the beams. In addition, since only one beamsplitter is employed in the interferometer (instead of the usual two used in a conventional MZI), the system is relatively easy to implement and at low cost. Furthermore, this configuration can be simply set to cover a wide range of optical path difference values by simply changing the angle and position of one of the mirrors. This gives the interferometer the advantage of being easily adapted for a range of different measurement applications.Keywords: optical sensors, white light interferometry 1000 CCD PIXEL NUMBER (c) SPIE Vol. 2594 / 165 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/24/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx
In this work, results from an interferometric vibration sensing system are discussed. The intrinsic non-steady-state photo-electromotive force characteristics of a photoconductive crystal were used practically in a detection system in conjunction with a modified Mach - Zehnder interferometer. The system was experimentally verified to provide reproducible vibration frequency measurements in the kilohertz region (to millihertz sensitivity), with the use of a simple signal-processing approach. The system had the added benefit of not requiring external optical components such as optical polarization control, transmission gratings and frequency shifting modulators, and offers information on the direction of the vibration motion, unlike many reported schemes.
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