Current measuring device

A current sensor for measuring magnetic fields in a conductor, the current sensor comprising:

• a housing having a cover and a base, said housing having a first opening on a first side and a second opening on a second side opposite said first opening, said base further having a semi-cylindrical surface extending between said first opening and said second opening, said cover having a hollow interior portion opposite said semi-cylindrical surface, said housing being made from a nonconductive plastic material;
• a fastener coupling said cover to said base;
• a semi-circular magnetic shielding member coupled to said semi-cylindrical surface;
• a compliant member coupled to said magnetic shielding member;
• a Hall effect device coupled to said cover within said hollow interior portion opposite said semi-cylindrical surface, wherein said semi-circular magnetic shielding member and said Hall effect device are arranged to define a gap sized to receive said conductor;
• and,
• a current sensing circuit mounted within said housing and electrically coupled to said Hall effect device.

A current sensor for measuring electrical current flow through an electrical conductor, said current sensor comprising:

• a cover having a substantially planar first surface and a wall extending around said first surface, said cover having a first semicircular opening in a first side of said cover wall and a second semicircular opening in a second side of said cover wall opposite said first semicircular opening, said cover having a substantially hollow interior portion between said first semicircular opening and said second semicircular opening, said covering being made from an electrically nonconductive plastic material;
• a base coupled to said cover, said base having a substantially planar second surface and a wall extending around said second surface, said base wall having a third semicircular opening in a first side of said base wall adjacent said first semicircular opening and a fourth semicircular opening in a second side of said base wall adjacent said second semicircular opening, said base further having a semi-cylindrical surface extending between said third semicircular opening and said fourth semicircular opening, said base being made from an electrically nonconductive plastic material;
• a Hall effect device coupled to said cover within said hollow interior portion opposite said semi-cylindrical surface;
• a semi-cylindrical magnetic shield member coupled to said semi-cylindrical surface between said semi-cylindrical surface and said compliant member, wherein said semi-cylindrical magnetic shield member and said Hall effect device are arranged to define a gap sized to receive said conductor;
• a compliant member coupled to said semi-cylindrical surface between said semi-cylindrical surface and said Hall effect device;
• and,
• a current sensing circuit coupled to said cover and electrically coupled to said Hall effect device.