Damped fiber optic accelerometers, sensors, and sensor assemblies, and methods of assembling the same
A fiber optic sensor is provided. The fiber optic sensor includes: a fixed portion configured to be secured to a body of interest; a moveable portion; a spring member positioned at least partially between the fixed portion and the moveable portion; an optical fiber wound in contact with the fixed portion and the moveable portion such that the optical fiber spans at least a portion of the spring; and an elastomeric material provided in contact with at least one of the fixed portion, the moveable portion, the spring member, the body of interest, and the optical fiber.
1. A method of assembling a fiber optic sensor, the method comprising the steps of:
(a) providing a fixed portion configured to be secured to a body of interest, a moveable portion, a spring member positioned at least partially between the fixed portion and the moveable portion, and an optical fiber wound in contact with the fixed portion and the moveable portion such that the optical fiber spans at least a portion of the spring; and
(b) providing an elastomeric material to be in contact with at least one of the fixed portion, the moveable portion, the spring member, the body of interest, or the optical fiber, wherein step (b) includes applying the elastomeric material as a fluid to surround each of the moveable portion and the spring.
2. The method of claim 1 wherein the elastomeric material provided in step (b) includes a material selected from the group consisting of rubbers, neoprenes, urethanes, epoxies, silicones and viscoelastic materials.
3. The method of claim 1 wherein the elastomeric material is a viscoelastic material.