Abstract: A biomagnetometer includes a magnetic field sensor unit having a magnetic field pickup coil. A vessel contains the sensor unit. The vessel includes a flexible contact face with the magnetic field sensor unit mounted in the interior of the vessel adjacent to the flexible contact face. Insulation at the flexible contact face of the vessel prevents excessive heat flow through the flexible contact face. Pickup units using this structure can be connected together into flexible or rigid arrays. In operation, the pickup coil is cooled to a temperature of less than its superconducting transition temperature. A detector measures the magnitude of magnetic fields sensed by the sensor unit.

Abstract: A method and apparatus for removing a fluid from an immiscible fluid composition including a floating liquid and a carrying liquid are disclosed. A body having floatation supports, means to permit rotation about a horizontal plane and free movement in a vertical plane, and an internal cavity is disposed in the immiscible composition, and the floating liquid is allowed to enter the cavity. The floating liquid in the cavity is skimmed by a slidable pickup conduit disposed coaxially with a receiving conduit coextensive with the bottom of the cavity, and is then removed from the cavity.