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  • 1
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    Use of two magnetometers for magnetic field measurements on a spacecraft (1971)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Simultaneous two magnetometer measurements of weak magnetic fields in interplanetary space, near moon and planets by satellites in presence of spacecraft field
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; 1 (
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    The Pioneer XI high field fluxgate magnetometer (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The high field fluxgate magnetometer experiment flown aboard the Pioneer XI spacecraft is described. This extremely simple instrument was used to extend the spacecraft's upper-limit measurement capability by approximately an order of magnitude (from 0.14 mT to 1.00 mT) with minimum power and volume requirements. This magnetometer was designed to complement the low-field measurements provided by a helium vector magnetometer and utilizes magnetic ring core sensors with biaxial orthogonal sense coils. The instrument is a single-range, triaxial-fluxgate magnetometer capable of measuring fields of up to 1 mT along each orthogonal axis, with a maximum resolution of 1 microT.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Space Science Instrumentation; 1; May 1975
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    The Rome-GSFC magnetic field experiment for Helios A and B /E 3/ (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The Rome-GSFC magnetic field experiment utilizes a triaxial fluxgate (saturable inductor) magnetometer. The sensor unit is mounted on the end of a boom approximately four meters from the spacecraft spin axis. The three analog outputs of the magnetometer are converted into three 9 bit digital words. The experiment utilizes an automatic inflight range switch to select the optimum dynamic range out of 4 ranges. A nonmagnetic thermally oscillating actuator is used to reorient the sensor unit by 90 deg to determine all three axes zero levels. The accuracy should be approximately plus or minus 0.1 gamma. The vector measurements are made at equal intervals in time ranging from 16 per second down to 1 per second depending on the telemetry bit rate.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Raumfahrtforschung; 19; Sept
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Reply to a paper on the use of two magnetometers for magnetic field measurements on a spacecraft (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The use of two magnetometers for measuring the ambient magnetic field of spacecraft is compared with the single magnetometer variance method. It is shown that the dual magnetometer concept was developed for missions which are conducted with attitude stabilized spacecraft which have been constructed without an adequate magnetics control program. Specific methods for applying the dual magnetometer technique are described and an error analysis is conducted to determine the accuracy of the results.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-X-66041 , X-690-72-353
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Interplanetary magnetic field IMP-1, motion picture of the transverse components (1968)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Motion picture report of IMP-1 magnetometer observations of interplanetary magnetic field
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-94232 , AD-665987
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    GSFC magnetic field experiment Explorer 43 (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The magnetic field experiment flown on Explorer 43 is described. The detecting instrument is a triaxial fluxgate magnetometer which is mounted on a boom with a flipping mechanism for reorienting the sensor in flight. An on-board data processor takes successive magnetometer samples and transmits differences to the telemetry system. By examining these differences in conjunction with an untruncated sample transmitted periodically, the original data may be uniquely reconstructed on the ground.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-X-70609 , X-692-74-29
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    The Pioneer 11 high-field fluxgate magnetometer (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The High Field Fluxgate Magnetometer Experiment flow aboard the Pioneer 11 spacecraft to investigate Jupiter's magnetic field is described. The instrument extends the spacecraft's upper limit measurement capability by more than an order of magnitude to 17.3 gauss with minimum power and volume requirements.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-X-70467 , X-692-73-268
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    An extension of the dual magnetometer method for use on a dual spinning spacecraft (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A method of estimating and correcting for the magnetic field of a dual spinning spacecraft has been developed by employing an extension of the dual magnetometer technique. This new method is useful for those situations in which a magnetometer boom of modest length is attached to the spinning part of a large spacecraft. The purpose of using a dual spinning spacecraft is to accommodate two types of instruments: imaging and similar pointed remote sensing systems on the stationary platform, and fields, particles and other in-situ measuring instruments on the spinning portion. The new method assumes that the stationary part of the spacecraft possesses a magnetic field which is represented by a combination of a dipole and a quadrupole field.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-X-71384 , X-695-77-32
    Format: application/pdf
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  • 9
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    Magnetometers for space research (1970)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Operational characteristics of spacecraft magnetomers for measuring planetary and interplanetary magnetic fields
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-X-63887 , X-690-70-78
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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