This disclosure generally pertains to a method for manufacturing a distributed optical fiber scrim comprising a functional optical fiber, the functional optical fiber scrim thus manufactured, and composites in which an optical fiber scrim is incorporated. The present disclosure describes a variety of textile scrims, particularly adhesively bonded nonwoven scrim materials, each comprising at least one optical fiber with a continuous path across at least the length or width of the fabric. Such optical fiber scrims may be useful as sensor components (for example, as a detector of breakage, strain, pressure, or torque), as illumination components (for example, in a variety of light-providing applications), or as data-distribution components, either alone or in combination with other materials, such as fabrics, films, foams, and the like.

Optical fiber substrate useful as a sensor or illumination device component

A tamper monitoring article and system, and an associated method of making, installing and using the article and system. The article has an elongate body portion. The body portion has a first end portion that adheres to a second end portion, if present, or to a substrate. The article also includes a pathway structure that runs along or throughout the body portion and can conduct energy, such as light or electricity, along its length. A monitor communicates with the pathway structure and detects a change in the energy being conducted thereby. A change in the energy is indicative of a change in a conductive property of the pathway structure caused by, for example, manipulation of the body portion and the pathway structure that is disposed therein or thereon. The monitor can then signal, or respond to a request signal, and provide information that such manipulation has occurred.

Tamper monitoring article, system and method

A wind power generation evaluation system includes: a laser aerovane 100-300 that measures, with laser, the direction and velocity of wind at a distance from a wind power generator connected to an electric power system to predict the direction and velocity of wind at the wind power generator; a second aerovane 500 that measures them at the wind power generator; a wind power generation output calculation unit 400a that integrates a difference between power outputs calculated based on measurements by the laser aerovane and the second aerovane while referring to a windmill performance curve indicating output power characteristic of the wind power generator regarding wind velocity, to obtain a difference between the amounts of generated power; and an additional value calculation unit 400b that calculates additional value of an influence on the environment based on the difference between the amounts of generated power obtained by the calculation unit 400a.

Wind power generation evaluation system and prediction control service system for wind power generator

A buoyant platform apparatus (36), such as a buoy, is described that comprises a laser radar (lidar) wind speed measurement (20) device. The lidar (22) is arranged to make wind velocity measurements at one or more remote probe volumes of known position relative to said platform (36). The wind speed measurement apparatus may further comprise motion sensing means (26) that, in use, monitor motion of the platform (36) allowing wind speed at an absolute position in space to be measured. Wind velocity data may also be compensated for platform movement.

Wind speed measurement apparatus and method

Method and apparatus for detecting conditions in the atmosphere which are hazardous to flying aircraft and providing early warning to pilots or ground personnel. The method includes using a laser beam and a coherent optical receiver to optically sense sound waves produced by those hazardous conditions and measuring the effect of those sound waves on the transmitted and received optical beams.

Method of detecting weather conditions in the atmosphere

Optical fibers are used for monitoring the structural integrity of space based or aircraft structures where prompt notification of damage is required to effect rapid repair and thereby maintain safety and operational reliability. A plurality of optical fibers are disposed in an X-Y relationship, with the fibers optimally placed in a pattern comprised of multiple path reversals which provides extensive area coverage with a minimum of fibers thus defining multiple zones wherein damage within a zone is determined by interruption of the light through the damaged fibers.

High density fiber optic damage detection system

Air turbulence ahead of an aircraft is determined by scanning the beam of a variable focal distance laser airspeed unit close-in to the aircraft to determine aircraft airspeed and angle of attack, and scanning the beam at distances farther out from the aircraft and measuring airspeed. Discrepancies between the close-in measurement and the farther out measurement are quantifiably indicative of air turbulence.

Gust detection system

A helicopter main rotor blade having built-in twist for improved hover performance is provided with a trailing-edge, short span slot near the tip end of the blade for upwardly directing a stream of pressurized air therefrom. The upward ejection of air from the slot untwists the blade, which will enhance the forward flight performance of the blade. A method of modulating the ejection of air from the slot is disclosed for antivibratory control.

Helicopter main rotor blade having a short span slot near the tip end

Optical fibers are used for monitoring the structural integrity of space based or aircraft structures where prompt notification of damage is required to effect rapid repair and thereby maintain safety and operational reliability. A plurality of optical fibers (5-12) are disposed in an X-Y relationship, with the fibers optimally placed in a pattern comprised of multiple path reversals which provides extensive area coverage with a minimum of fibers thus defining multiple zones wherein damage within a zone is determined by interruption of the light through the damaged fibers.

Evan A Fradenburgh

Papers

High density fiber optic damage detection system

Gust detection system

Helicopter main rotor blade having a short span slot near the tip end

Fiber optic damage detection system

Verfahren zum erkennen von luftturbulenz in der flugbahn eines flugzeuges