Ultra low noise compact high performance IMU, Phase I

Metadata Updated: November 12, 2020

We propose a new approach for to the design and fabrication of miniaturized Interferometric Fiber Optical Gyroscope (FOG) that enables the production of smaller IRU and IMU with substantially reduced noise (ARW) and better bias performance. The gyro noise is reduced by a factor of at least 4 to 6 by utilizing an innovative approach for the light source noise reduction. In addition the sensor is using a new fiber combined with innovative coil design that results in lower bias drift and up to tenfold reduction of the bias temperature sensitivity compared to the existing FOG products as well as additional x 2 reduction of the ARW. The combination of these attributes supports a smaller, lower cost, high performance and robust IMUs that can serve future NASA mission needs; a 33 cube inch IMU (LN200 size) is expected to deliver Navigational grade performance, with ARW of 0.001 deg/rt-hr and bias residual over temperature of 0.02 deg/hr, while a larger FOG is expected to enable ARW of 0.0002 deg/rt/hr with 0.005 deg/hr bias and IMU volume < 70 cube inch. We also present innovative concept for a miniaturized tactical IMU based on the above technology (< 1 deg/hr bias over temperature and 0.02 deg/rt-hr ARW) with a volume as small as 5 cube inch.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Maintainer
Identifier TECHPORT_93818
Data First Published 2017-12-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Homepage URL https://techport.nasa.gov/view/93818
Program Code 026:027
Source Datajson Identifier True
Source Hash a34e944b53a64f11fd972d39ae912af6fd6ebc3d
Source Schema Version 1.1

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