Eddy current nondestructive evaluation device with rotating permanent magnets and pickup coils

An eddy current nondestructive evaluation device comprising:

• a rotating body;
• a motor coupled with the rotating body such that the motor rotates the rotating body;
• an accelerometer coupled with the rotating body that measures angular rotation of the rotating body;
• a permanent magnet coupled with the rotating body;
• a pickup coil coupled with the rotating body;
• an integrator circuit electrically coupled with the pickup coil that integrates a voltage from the pickup coil to produce integrated voltage data;
• and
• electrical circuitry that includes a data acquisition unit that receives integrated voltage signals from the integrator circuit, and digital storage that records the angular rotation of the rotating body with the integrated voltage signal for translating into spatial data.