Seigo Ando

Eddy current distance signal apparatus with temperature change compensation means

Apparatus for detecting surface flaw of pipeline by electromagnetic induction

Apparatus for non-contact measurement of distance from a metallic body using a detection coil in the feedback circuit of an amplifier

Method and apparatus for magnetically detecting defects in an object with compensation for magnetic field shift by means of a compensating coil

Apparatus for measuring the level of the molten metal in the mold of a continuous casting machine

System for detecting the temperature distribution of a heated body

Current measuring method and apparatus therefor

Apparatus for monitoring and controlling the level of the molten metal in the mold of a continuous casting machine

Apparatus for detecting the center of a welded seam in accordance with fundamental harmonic component suppression

Apparatus for detecting inner surface flaw of each pipe constituting pipeline