We introduce a parameter called pointing error thermal sensitivity (PETS) for quantitatively determining the quality of a quadrupolar (QAD) fiber coil under radial temperature variations. We show both analytically and experimentally that the pointing error of a fiber gyro incorporating the fiber coil is linearly proportional to the final radial thermal gradient on the coil, with PETS as the pro...

In this paper, we discuss the effective reflection of a fiber Bragg grating and its dependence on laser power when it is used as an output coupler ytterbium-doped (here considered to be part intracavity reflected by back cavity). We propose experimental technique based spectral analysis derive simple formulae that permits one obtain intra-cavity reflection. show that, due broadening, dramatical...

Microcantilevers are key components of many Micro-Electro-Mechanical Systems (MEMS) and Micro-Optical-ElectroMechanical Systems (MOEMS) because slight changes to them physically or chemically lead to changes in mechanical characteristics. An inexpensive dual-fiberoptic microcantilever proximity sensor and model to predict its performance are reported here. Motion of a magnetic-material-coated c...

Short fiber-reinforced thermoplastics such as 30% by weight glass polyamide 46 (PA46GF30) are considered substitute material for lightweight metallic parts. Despite the short fiber length, a distinct orientation caused local shear flow conditions during injection molding is obtained. This results in anisotropic properties, which should be design phase of component. Material properties obtained ...

Liquid sealing is an effective method to convert a fiber-optic refractometer into a simple and highly sensitive temperature sensor. A refractometer based on the thin-core fiber modal interferometer is sealed in a capillary tube filled with Cargille oil. Due to the thermo-optic effect of the sealing liquid, the high refractive-index sensitivity refractometer is subsequently sensitive to the ambi...

In this paper, we investigate theoretically the possible development of instabilities in fiber-reinforced elastomers (and other soft materials) when they are subjected to finitestrain loading conditions. We focus on the physically relevant class of ‘‘macroscopic’’ instabilities, i.e., instabilities with wavelengths that are much larger than the characteristic size of the underlying microstructu...

A structure-based model that accurately predicts micro- or macromechanical behavior of blood vessels is necessary to understand vascular physiology. Based on recently measured microstructural data, we propose a three-dimensional microstructural model of coronary adventitia that incorporates the elastin and collagen distributions throughout the wall. The role of ground substance was found to be ...