The Triaxial Magnetic Moment Analysis software uses measured magnetic field test data to compute dipole and quadrupole moment information from a hardware element. It is used to support JPL projects needing magnetic control and an understanding of the spacecraftgenerated magnetic fields.
Evaluation of the magnetic moment of an object consists of three steps: acquisition, conditioning, and analysis. This version of existing softward was extensively rewritten for easier data acquisition, data analysis, and report presentation, including immediate feedback to the test operator during data acquisition.
While prior JPL computer codes provided the same data content, this program has a better graphic display including original data overlaid with reconstructed results to show "goodness of fit" accuracy and better appearance of the report graphic page. Data are acquired using three magnetometers and two rotations of the device under test. A clean acquisition user interface presents required numeric data and graphic summaries, and the analysis module yields the best fit (least squares) for the magnetic dipole and/or quadrupole moment of a device.
The acquisition module allows the user to record multiple data sets, selecting the best data to analyze, and is repeated three times for each of the z-axial and y-axial rotations. In this update, the y-axial rotation starting position has been changed to an option, allowing either the x- or zaxis to point towards the magnetometer. The code has been rewritten to use three simultaneous axes of magnetic data (three probes), now using two "rotations" of the device under test rather than the previous three rotations, thus reducing handling activities on the device under test. The present version of the software gathers data in one-degree increments, which permits much better accuracy of the fitted data than the coarser data acquisition of the prior software.
The data-conditioning module provides a clean data set for the analysis module. For multiple measurements at a given degree, the first measurement is used. For omitted measurements, the missing field is estimated by linear interpolation between the two nearest measurements.
The analysis module was rewritten for the dual rotation, triaxial probe measurement process and now has better moment estimation accuracy, based on the finer one degree of data acquisition resolution. The magnetic moments thus computed are used as an input to summarize the total spacecraft field.
This program was written by Kimberly Shultz, Albert Whittlesey, and Pablo Narvaez of Caltech for NASA's Jet Propulsion Laboratory.
This software is available for commercial licensing. Please contact Karina Edmonds of the California Institute of Technology at (626) 395-2322. Refer to NPO-44192.
This Brief includes a Technical Support Package (TSP).
Triaxial Probe Magnetic Data Analysis
(reference NPO-44192) is currently available for download from the TSP library.
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Overview
The document is a Technical Support Package from NASA's Jet Propulsion Laboratory (JPL) concerning the Triaxial Probe Magnetic Data Analysis Program, identified by NPO-44192. It is part of NASA Tech Briefs, which disseminate information on aerospace-related developments that have potential technological, scientific, or commercial applications.
The Triaxial Probe Magnetic Data Analysis Program is a software application designed to analyze magnetic data collected from triaxial probes. These probes are essential in various scientific and engineering applications, particularly in the fields of aerospace and geophysics, where understanding magnetic fields is crucial for navigation, exploration, and research.
The document emphasizes the importance of compliance with U.S. export regulations, indicating that the information may contain proprietary data from Caltech/JPL. It also highlights that the United States Government, nor any individual acting on its behalf, assumes liability for the use of the information contained within the document. This disclaimer underscores the need for users to be aware of any privately owned rights associated with the content.
For further assistance or inquiries regarding research and technology in this area, the document provides contact information for the Innovative Technology Assets Management team at JPL. This team is responsible for managing and promoting NASA's innovative technologies and can offer additional insights or support related to the Triaxial Probe Magnetic Data Analysis Program.
Overall, the Technical Support Package serves as a resource for individuals and organizations interested in leveraging NASA's advancements in magnetic data analysis, facilitating broader access to cutting-edge aerospace technologies. It reflects NASA's commitment to sharing knowledge and fostering partnerships that can lead to innovative solutions in various fields.
