Arrangement for use in the study of the propagation of cracks

摘要

A crack-detecting unit is operative for examining a limited portion of an object to determine whether such portion is cracked. When the crack-detecting unit determines that the portion of the object being examined is cracked, a control unit automatically causes the crack-detecting unit to examine the next portion of the object, thus proceeding from one limited portion of the object to the next, along the direction of propagation of the crack. A recording unit automatically makes a record of the examination by the crack-detecting unit of the successive portions of the object, to thereby make a record of the propagation of the crack.