Optical technologies, inc. (optech) has designed an inexpensive fiber-optic pressure sensor capable of detecting impulses with peak pressures of 700 mpa and a rise time of 10 to the -4th power. this fiber-optic pressure sensor provides the following major features: (1) pressure range > 700 mpa, (2)… More

A survey within the medical community revealed that a low-cost nonsuperconducting instrument capable of monitoring magnetic fields is required for noninvasive magnetoencephalography (meg). such a device is also expected to be applicable for biomagnetic diagnosis of liver, lung, and heart disease.… More

A survey within the medical community revealed that an instrument capable of continuously and accurately monitoring temperature at multiple locations in and around a tumor during hyperthermia therapy is needed. the treatment of cancer by hyperthermia is a process by which elevated temperatures are… More

The u.s. army is seeking a compact, economical acceleration sensor with a wide operation range for incorporating into "smart" projectile targeting systems to improve system performance with respect to detection and resolution of motion and distances. optical technologies, inc. (optech) proposes a… More

The u.s. army needs a magnetometer capable of detecting magnetic anomalies as small as 0.1 gamma (10 -6 gauss) in the frequency range of

The u.s. navy is seeking an electromagnetic (em) field sensor capable of operation in the frequency range of 10 khz to 60 khz, which can be covertly deployed from a submarine platform. optical technologies, inc. (optech), proposes a fiber-optic em-field sensor to meet this need. the sensor has the… More

Pressure measurements deep in geothermal wellbores provide some of the most valuable data for measuring the productivity of geothermal wells and for assessing reservoircharacteristics. wellbores have very high pressure and very low ph, but, most significantly, they have very high temperatures (up to… More

Optical technologies, inc., (optech) proposes the development of a highly sensitive, inexpensive field-portable fiber-optic gravimeter capable of exceeding the sensitivity of current reference/observatory devices. optech has considerable experience in the research and development of a number of… More

Improved reliable accelerometers suitable for wide deployment in seismic arrays are needed for earthquake prediction studies. in response to this need optical technologies, inc. (optech) is proposing a fiber-optic accelerometer system that provides the desired performance improvements of broad-band,… More

Remote, reliable accelerometers suitable for deployment on the ocean floor are needed for geophysical studies. an all-optical, remote fiber-optic accelerometer system that requires no electrical conductors or connections in the water is being investigated. the accelerometer system provides the… More