Inductive conductivity sensor
First Claim
1. A conductivity sensor for measuring conductivity of a medium surrounding the conductivity sensor, comprising:
- a multi-ply circuit board;
a first toroidal coil bounding a medium-receiving passageway and serving for inducing an electrical current in the medium; and
a second toroidal coil also bounding the passageway and serving for registering a magnetic field produced by the electrical current, wherein;
at least one of the toroidal coils has a plurality of first conductor segments, which extend in a plane of said multi-ply circuit board, a plurality of second conductor segments, which extend in a second plane of said circuit board, and a plurality of through-contacts, which connect said first conductor segments with said second conductor segments;
said first conductor segments, said second conductor segments and said through-contacts form, together, the windings of a toroidal coil; and
when said first toroidal coil and said second toroidal coil are surrounded by the medium, said first toroidal coil can be operated as an exciter coil, inducing an electric current in the medium, the current being registered by said second toroidal coil.
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Accused Products
Abstract
A conductivity sensor for measuring conductivity of a medium surrounding the conductivity sensor includes a first toroidal coil bounding a medium-receiving passageway and serving for inducing an electrical current in the medium, and a second toroidal coil also bounding the passageway and serving for registering a magnetic field produced by the electrical current. At least one of the toroidal coils has a plurality of first conductor segments, which extend in a plane of a multi-ply circuit board, a plurality of second conductor segments, which extend in a second plane of the circuit board, and a plurality of through-contacts, which connect the first conductor segments with the second conductor segments, wherein the first conductor segments, the second conductor segments and the through-contacts form, together, the windings of a toroidal coil.
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Citations
29 Claims
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1. A conductivity sensor for measuring conductivity of a medium surrounding the conductivity sensor, comprising:
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a multi-ply circuit board; a first toroidal coil bounding a medium-receiving passageway and serving for inducing an electrical current in the medium; and a second toroidal coil also bounding the passageway and serving for registering a magnetic field produced by the electrical current, wherein; at least one of the toroidal coils has a plurality of first conductor segments, which extend in a plane of said multi-ply circuit board, a plurality of second conductor segments, which extend in a second plane of said circuit board, and a plurality of through-contacts, which connect said first conductor segments with said second conductor segments; said first conductor segments, said second conductor segments and said through-contacts form, together, the windings of a toroidal coil; and when said first toroidal coil and said second toroidal coil are surrounded by the medium, said first toroidal coil can be operated as an exciter coil, inducing an electric current in the medium, the current being registered by said second toroidal coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A conductivity sensor for measuring conductivity of a medium surrounding the conductivity sensor, comprising:
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a multi-ply circuit board; a first toroidal coil bounding a medium-receiving passageway and serving for inducing an electrical current in the medium; and a second toroidal coil also bounding the passageway and serving for registering a magnetic field produced by the electrical current, wherein; at least one of the toroidal coils has a plurality of first conductor segments, which extend in a plane of said multi-ply circuit board, a plurality of second conductor segments, which extend in a second plane of said circuit board, and a plurality of through contacts, which connect said first conductor segments with said second conductor segments; said first conductor segments, said second conductor segments and said through-contacts form, together, the winding of a toroidal coil; said first toroidal coil comprises a first ring-core and said second toroidal coil comprises a second ring-core; and said first ring-core and said second ring-core are arranged coaxially and axially shifted relative to one another. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A conductivity sensor for measuring conductivity of a medium surrounding the conductivity sensor, comprising:
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a multi-ply circuit board; a first toroidal coil bounding a medium-receiving passageway and serving for inducing an electrical current in the medium; and a second toroidal coil also bounding the passageway and serving for registering a magnetic field produced by the electrical current, wherein; at least one of said toroidal coils has a plurality of first conductor segments, which extend in a plane of said multi-ply circuit board, a plurality of second conductor segments, which extend in a second plane of said circuit board, and a plurality of through-contacts, which connect said first conductor segments with said second conductor segments; said first conductor segments, said second conductor segments and said through-contacts form, together, the windings of a toroidal coil; said first toroidal coil comprises a first ring-core and said second toroidal coil comprises a second ring-core, said first toroidal coil and said second toroidal coil are arranged coaxially and coplanarly; and between said first ring-core and said second ring-core said plurality of through-contacts are arranged. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification