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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Musch, T. Kuppers, M. Schiek, B. |
| Copyright Year | 2003 |
| Description | Author affiliation: KROHNE Messtechnik GmbH & Co. KG, Ludwig-Kohne-Straße 5, D-47058 Duisburg, Germany (Musch, T.) || Ruhr-Universität Bochum, Institut für Hochfrequenztechnik, Universitätsstraße 150, D-44780 Bochum, Germany (Kuppers, M.; Schiek, B.) |
| Abstract | Optical distance measurement systems are well suited for achieving very high measurement accuracies due to the small measurement spot. Unfortunately most of the existing commercial measurement systems suffer from their limitation to one target only. In this article an optical measurement system is described that is able to work even in complex multi target environments like in closed vessels where the measurement signal has to pass through a process window. The system is based on the FMCW concept allowing large bandwidths of more than 2 GHz. Another feature is a baseband phase-locked-loop (PLL) linearization of the frequency ramp generated inside a broadband high frequency oscillator. This PLL guarantees for a highly linear and reproducible frequency generation and thus is the basis for stable and precise measurement results. Measurements on a prototype system underline the good functionality of the concept. |
| Starting Page | 991 |
| Ending Page | 994 |
| File Size | 361469 |
| Page Count | 4 |
| File Format | |
| ISBN | 1580538347 |
| DOI | 10.1109/EUMA.2003.341130 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-10-02 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Frequency Phase locked loops Nonlinear optics Optical mixing Optical filters Bandwidth Spatial resolution Optical modulation Baseband Oscillators |
| Content Type | Text |
| Resource Type | Article |
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