A simple laser speckle dilatometer for thermal expansion measurements

C. S. Vikram, Dinesh Kumar Agrawal, R. Roy, H. A. McKinstry

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A simple laser speckle method utilizing a 4 mW HeNe laser for thermal expansion measurements is described. The method utilizes the rotation of a probe kept on the sample and reference rods. For 5 cm long sample and reference rods kept 0.5 cm apart, a measurement sensitivity of 5 × 10-6 for ΔL L can easily be obtained.

Original languageEnglish (US)
Pages (from-to)482-484
Number of pages3
JournalMaterials Letters
Issue number12
StatePublished - Jan 1 1985

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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