MAGNETOMETER SENSORS

Brand Owner (click to sort) Address Description
DARK ICE LOCKHEED MARTIN CORPORATION 6801 Rockledge Drive Bethesda MD 20817 magnetometer sensors;
MWM JENTEK Sensors, Inc. 121 Bartlett Street Marlborough MA 01752 magnetometer sensors, probes and sensor arrays, designed for measuring electrical properties, such as conductivity and permeability, of materials such as metals and graphite composites, and geometric properties, such as layer and coating thickness, of multilayered and coated manufactured goods such as aircraft skins, turbine blades, flat panel displays, semiconductors, and used for process and quality control of the manufacture of metallic and graphite composite parts field inspection, namely, measurement of residual stress and monitoring age-related degradation, of structures, equipment and machinery such as bridges, aircraft components, turbine blades, automobile parts, nuclear and fossile fuel power plants, propellers, aircraft engine components and railway car components and rails, for object detection and discrimination such as detection of buried objects such as landmines, unexploded ordnance, archeological artifacts and environmental hazards, and for relating electrical properties of materials and manufactured goods, such as those mentioned above, to mechanical or other process properties, such as stress, temperature, fatigue life, corrosion state, heat treatment quality, wear, porosity, and contamination;
 

Where the owner name is not linked, that owner no longer owns the brand

   
Technical Examples
  1. A magnetic field measurement apparatus which reduces an interference magnetic field entering into a pick-up coil is provided. The magnetic field measurement apparatus includes a superconducting quantum interference device (SQUID) magnetometer having a pick-up coil for picking up a magnetic field generated from an examination object, a SQUID control unit for controlling the SQUID magnetometer, a magnetometer for picking up the interference magnetic field, a magnetometer control unit for controlling the magnetometer, a modulation circuit, a current converter, a current amount adjusting device, a coil which is positioned outside the pick-up coil and through which the current thus adjusted by the current amount adjusting device flows, a demodulation circuit, a low-pass filter (LPF) for extracting a low frequency element of the output voltage from the demodulation circuit, and a subtraction circuit for subtracting the output of the LPF from the output of the SQUID control unit.