Since there is no contact of this extensometer with the sample, the 500LC is ideal for also measuring the elongation of fragile samples where such contact could induce a premature sample break. The model 500LC uses a low power helium neon laser with precision optical components and a dedicated 16 bit processor.
The laser projects a visible red scanning beam that is directed at two reflective targets attached to the specimen. An additional benefit of using laser technology is its ability to scan the test specimen through the glass viewing window of an environmental test chamber. Elongation characteristics can then be evaluated from –70° C to 300° C.
Preparation of the test specimen is quick and easy. A punch is supplied to cut narrow strips of adhesive reflective tape. The gauge length is defined by attaching these two reflective strips to the sample. Any gauge length can be used and this is accurately measured by the laser at the start of the test.
Test Machines Australia | Materials Testing Machines
We at Test Machines Australia have been involved in Materials Testing Machines for over 20 years. We have been involved in the local design of many, many various specialised testing machines.For years ...