摘要:
An optical fiber sensor system and method for monitoring a condition of a linear structure such as a pipeline is provided which is capable of providing continuous monitoring in the event of a break in the sensing optical fiber or fibers. The system includes at least one sensing fiber provided along the length of the linear structure, and first and second interrogation and laser pumping sub-systems disposed at opposite ends of the sensing fiber, each of which includes a reflectometer. The reflectometer of the first interrogation and laser pumping sub-system is connected to one end of the sensing fiber. The reflectometer of the second interrogation and laser pumping sub-system is coupled to either (i) an end of a second sensing fiber provided along the length of the linear structure which is opposite from the one end of the first sensing fiber, or (ii) the opposite end of the first sensing fiber. Before any break of the sensing fiber or fibers occurs, each reflectometer redundantly monitors the condition of the linear structure over its entire length. After any such break occurs, each reflectometer will continue to receive signals up to the point of the break from opposite ends of the structure.
摘要:
A location tracking hospital grade power cord and method therefore is taught in the various embodiments. The hospital grade power cord includes a location module housing having a location circuit board therein. Within the location module housing, a power supply is positioned and in electrical communication with conductors extending through the cord housing. The location module housing also provides location for a communication module including a location module such as a Global Positioning System (GPS) satellite receiver and at least one cellular transceiver.
摘要:
A sports activity device playable, for example, as a device for launching and catching objects and as a tossable flying disc. Embodiments of the sports activity device includes an outer annular ring member and an inner annular ring assembly detachably engaged to the outer annular ring member. The inner annular ring assembly may include an inner annular ring member and an engagement assembly configured and operable to facilitate detachable engagement of the inner annular ring assembly with the outer annular ring member.
摘要:
A coating composition of oil and organofunctional silane is provided for the treatment of metal substrates. The coating composition features at least 80% by weight of oil and 0.5% to 10% by weight of organofunctional silane. The organofunctional silane includes a polysulfide silane, and the preferred metal substrate is a tire cord. When a tire cord is coated with the coating composition, it allows a tire to be formulated with lower sulfur levels and without cobalt.
摘要:
A sports activity device playable, for example, as a device for launching and catching objects and as a tossable flying disc. Embodiments of the sports activity device includes an outer annular ring member and an inner annular ring assembly detachably engaged to the outer annular ring member. The inner annular ring assembly may include an inner annular ring member and an engagement assembly configured and operable to facilitate detachable engagement of the inner annular ring assembly with the outer annular ring member.
摘要:
A toy throwing object including a plurality of fins of sufficient flexibility to permit the device to travel in two distinct modes of operation. In a first mode, the device travels ballistically without significant rotation. In a second mode, the device rotates in a helicopter-like fashion.
摘要:
The present invention relates to a scanning system optimized for lidar that includes a nodding mirror, a rotary electromagnetic drive, a rotary optical encoder, and control circuitry. The rotary electromagnetic drive includes a yoke incorporating a permanent magnet, and an arm having a coil at one end of the arm. The coil is enclosed within the yoke, and an opposite end of the arm is coupled to the nodding mirror, such that movement of the coil within the yoke in response to a current causes the nodding mirror to rotate. The rotary optical encoder produces an output signal in response to rotation of the nodding mirror, which serves as feedback to the control circuitry. The control circuitry adjusts the current provided to the rotary electromagnetic drive in response to the output signal, such that the nodding mirror rotates in a reference scan pattern.
摘要:
A vehicle energy recovery system has an axle, a wheel affixed to the axle so as to rotate with a rotation of the axle, a flywheel assembly mounted in or adjacent to the wheel so as to be rotatable independently of the rotation of the axle, a stator positioned in proximity to the flywheel assembly, a brake disk affixed to the axle and extending radially outwardly therefrom, and an energy transfer system cooperative with the brake disk for transferring energy from the brake disk to the flywheel assembly. A pair of calipers are respectively mounted adjacent opposite sides of the brake disk. The energy transfer system can be an induction stator or rotor positioned adjacent to the brake disk.