High sensitivity, high bandwidth accelerometer with fiber optic sensing

An accelerometer of the type in which a disk is mounted upon a vertical post. The accelerometer may be employed as a hydrophone, for example, including a watertight case, and forming a neutrally buoyant structure or may be suitable for hull-mounting. The disk comprises a planar honeycombed structure...

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Bibliographic Details
Main Authors GOLDNER ERIC L, TWEEDY MICHAEL J
Format Patent
LanguageEnglish
Published 03.10.2002
Edition7
Subjects
INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
PHYSICS
TESTING
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Summary:An accelerometer of the type in which a disk is mounted upon a vertical post. The accelerometer may be employed as a hydrophone, for example, including a watertight case, and forming a neutrally buoyant structure or may be suitable for hull-mounting. The disk comprises a planar honeycombed structure. A solid, dense ring-like peripheral mass is fixed to the central honeycombed structure to form a composite apparatus. The honeycombed central structure contributes enhanced stiffness without a corresponding increase in weight when compared with disks of solid fabrication while the peripheral concentration of mass increases radius of gyration sufficiently to offset gain dimunition due to increased stiffness so that an increase in figure of merit is obtained.
Bibliography:Application Number: US20010822051