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The Pioneer I, Explorer VI and Pioneer V High-Sensitivity Transistorized Search Coil Magnetometer

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3 Author(s)
Judge, D.L. ; Space Technology Labs., Los Angeles, Calif. ; McLeod, M.G. ; Sims, A.R.

The magnetometer described in this paper was designed for the purpose of measuring the distant geomagnetic and interplanetary magnetic fields. The sensing element is a coil fixed in the frame of a spinning vehicle. The associated nonlinear amplifier has a dynamic range of approximately three decades and an equivalent noise threshold of 6.0 microgauss. This system has been flown in the Pioneer I, Explorer VI and Pioneer V payloads to detect both absolute magnitude and directional changes in the magnetic field intensity at great distances. The complete unit enclosed in an RF shielded container weighs one pound.

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Space Electronics and Telemetry, IRE Transactions on  (Volume:SET-6 ,  Issue: 3-4 )