CONVERTER FOR THERMAL TEST FLAW DETECTOR Russian patent published in 1997 - IPC

FIELD: nondestructive testing. SUBSTANCE: converter has sensitive unit in the form of matrix made from circular ferrite cores with rectangular hysteresis loop enveloped by winding closed through photo- or thermosensitive element, temperature- sensitive resistor, photodiode, photoresistor or other elements. Sensitive elements are organized into matrix and are integrally made. recording and reading of changes of resistance of sensitive elements is realized by three-coordinate select system. Relief of thermal field or distribution of radiation flow are transformed into visual image on screen of videocontrol device. EFFECT: improved functional reliability. 2 cl 3 dwg