The expanding fiber optic sensor field has pointed to increasing need for suitable compact, efficient, and reasonable cost interface subassemblies. in particular, spectral analyzers are needed to interpret the fiber optic signal from an of numerous types of fiber sensors -- e.g., wavelength… More

New and immerging technologies have made possible the development of a "pocket-sized, infrared spectrophotometer. such an instrument would have application in the accurate and reliable real-time detection of biological and toxin aerosols. opcoa proposes to use microelectronics and micro-optics to… More

New and immerging technologies have made possible the development of a "pocket-sized" infrared spectrophotometer. such an instrument wouldhave application in the accurate and reliable real-time detection of toxic gases from burnt propelants such as lead oxides, hydrogen sulfide, hydrogen cyanide and… More

A high-accuracy temperature sensor--with immunity to emi--is proposed as an ocean temperature monitor. the sensor consists of a broadband light source coupled into an optical fiber which transmits this broadband spectrum to the remote sensor element. the sensor element is a variable gap fabry-perot… More

The development of a miniature, simple, inexpensive ir spectrophotometer will provide a means of chemical sensing and measurement for application in drug detection, toxic waste management, and cabin atmosphere monitoring. opcoa proposes to apply micro-electro-optics to the various components of the… More

The development of a miniature, simple, inexpensive ir spectro photometer will find application in any situation where continuous air quality monitoring is desired. opcoa proposes to apply hybrid, miceo-electro-optics to the various components of the various components of an ir spectrophotometer not… More

Present sensor technology has not kept pace with the data accumulation and reduction capability of modern microelectronics. available sensors are bulky, costly, and readily compatible with digital microprocessing electronics.any newly developed, high-accuracy, wide range parameter sensor should not… More

With the recent, rapid acceleration in the growth of fiber optic transmission systems, it seems logical that all-optical sensors will be the next generation of sensors -not just for temperature and pressure but for a variety of parameters, including stress, displacement, liquid level, etc. to… More

With the recent, rapid acceleration in the growth of fiber optic transmission systems, it seems logical that all-optical sensors will be the next generation of sensors--not just for temperature and pressure but for a variety of parameters, including stress, displacement, liquid level, etc. to… More

A broad-range pressure sensor concept immune to harsh envi- ronments and extreme temperatures is required for research measurements in wind-tunnel testing. the pro- posed sensor--fabricated as integral ter- minus of a single multimode fiber optic cable -- is essen- tially all glass and hence immune… More