Proceedings PaperOptical position sensor for aerospace applications
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A linear displacement transducer has been developed for use in fly-by-light control systems. Based on a digitally coded plate, it utilizes wavelength division to multiplex the digital channels on the plate. The sensor is connected to a remote processing unit via a single optical fiber. The transducer described here has a resolution of 12 bits over a 4 inch stroke, or 0.001 inch resolution, and the same configuration can be used for other strokes as well as for rotary transducers. In this paper we first describe the sensor system design. We then present the system's performance in terms of optical power budget and environmental performance, and conclude by discussing the strengths and limitations of our current design and by describing our future efforts in this field.