FIELD: physics.
SUBSTANCE: invention can be used for thermal damage zone determination within fire seat search by detection of thermally damaged burnt electric wiring segments or other wires manufactured by cold strain within fire place. Thus diagnostic physical variable is wire bending force measured in various points. Zone of the greatest thermal damage is indicated by extremely low values of this parameter. Wire bending force is measured using device which consists of two levers - upper and lower - jointed with an axis. Wire sockets are provided on the end of upper lever. Lower lever contains strain gauge with sensitive element designed as rocking arm with down-rounded corners to prevent wire cutting.
EFFECT: detection of thermally damaged burnt electric wiring segments or other wires manufactured by cold strain with accuracy sufficient for examining using nondestructive method.
3 dwg
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