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US 2003/0167122 A1Published application
Electronic compass
AssigneeSulas Sergio
InventorsJanusz Kozlowski, Paolo Palangio
Life of this patent
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AssigneeSulas Sergio
InventorsJanusz Kozlowski, Paolo Palangio
Estimating the term…
An electronic compass comprises a saturable core sensor (2) with a core (3) made of ferromagnetic material surrounded by an electric winding (3′), a first couple of electric windings (4, 5) around the sensor (2) having reciprocally orthogonal turns, a second couple of electric windings (8, 9) around said first couple (4, 5) having reciprocally orthogonal turns. The gap between the winding (3′) and the first couple of windings (4, 5) and between the first couple of windings (4, 5) and the second couple of windings (8, 9) is filled with a material having a low thermal expansion coefficient, preferably epoxy fibreglass reinforced plastic, supporting the windings of said first (4, 5) and second (8, 9) couple of windings. It is also provided an electronic control circuit (20, 21, 22).
Electronic compass comprising at least a saturable core sensor (2) having a core (3) made of ferromagnetic material and surrounded by an electric winding (3′) and electronic control means (20, 21, 22), characterised in that said sensor (2) comprises, combined each other,
Electronic compass according to compass 3, characterised in that the toroidal core (3) is made of an aluminium ring supporting a coil of amorphous ferromagnetic material.
Electronic compass according to any previous claim, characterised in that it provides for two sensors.
Electronic compass according to claim 11, characterised in that, by determining the course angle, the logical unit (22) carries out at least the further following steps:
Dependencies are inferred from the claim text.