Magnetic detector for an unmanned vehicle control system
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United States of America Patent
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-
Nov 29, 1988
Grant Date -
N/A
app pub date -
Jan 23, 1987
filing date -
Jan 28, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A magnetic detector for detecting the magnetic field of a magnetic field generating substance including an even number of saturable coils aligned in a straight line with the distance between adjacent ones larger than the width of the magnetic field generating substance. The saturable coils are separated into at least two pairs, and a high frequency oscillator is provided to supply a high frequency voltage through a resistor circuit to each pair of the saturable coils. A rectifying voltages circuit is arranged across the resistors in a differential manner as an output. When the magnetic field generating substance is displaced over an interval wider than the width thereof relative to the saturable coils, the magnetic detector generates a linear output voltage.
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