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Simple Inexpensive Neodymium Rod Fiber-Optic Temperature Sensor

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Abstract

In recent years, one of the most widespread applications of fiber-optic sensor technology has been the measurement of temperature.1 Although many successful designs have been published few ideas have been taken up commercially, and there still remains a need for a simple and inexpensive fiber-optic thermometer showing the well-known advantages of optical technology for such a sensor system. Many previous ideas require stringent optical adjustment or accurate intensity referencing to the input signal level, and these complexities can severely increase costs and limit accuracy.

© 1985 Optical Society of America

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