Optomechanical reference accelerometer. (8th September 2015)

• Record Type: Journal Article
• Authors: Gerberding, O; Guzmán Cervantes, F; Melcher, J; Pratt, J R; Taylor, J M
• Is Part Of: Metrologia. Volume 52:Number 5(2015:Oct.)
• Page Start: 654
• Page End: 665
• Publication Date: 2015-09-08
• Subjects: accelerometer -- optomechanics -- interferometry -- inertial sensing; Weights and measures -- Periodicals; Weights and Measures -- Periodicals; 530.805
• DOI: 10.1088/0026-1394/52/5/654
• Languages: English
• ISSNs: 0026-1394

Abstract

Abstract: We present an optomechanical accelerometer with high dynamic range, high bandwidth and readout noise levels below m s −2 / . The straightforward assembly and low cost of our device makes it a prime candidate for on-site reference calibrations and autonomous navigation. We present experimental data taken with a vacuum sealed, portable prototype and deduce the achieved bias stability and the accuracy of the sensitivity. Additionally, we present a comprehensive model of the device physics that we use to analyze the fundamental noise sources and accuracy limitations of such devices.