Multi-arm path pick=up for material test - has adjacent two-arm transducer elements with common attachment elements for adjacent arms

摘要

A displacement transducer has attachment elements on arms for attaching the transducer to a material specimen. At least one strain gauge mounted on the transducer produces an electrical signal proportional to the variation in the separation of the attachment elements. Two two-armed transducer elements (100,101) can be arranged adjacent to each other so that one arm of one element has a common attachment element (122) with an arm of the other transducer element. USE/ADVANTAGE - Enables high accuracy toughness testing of specimens of different materials or contg. welds.