A novel method for the simulataneous measurements of temperature and strain using a three-wire connection

Paolo Cappa, Franco Marinozzi, Salvatore Andrea Sciuto

Research output: Contribution to journalArticle


A novel methodology to simultaneously measure strain and temperature by means of an electrical resistance strain gauge powered by an ac signal and connected to a strain indicator by means of thermocouple wires is proposed. The experimental validation of the viability of this method is conducted by means of a purely electrical simulation of both strain and temperature signals, respectively from -2000 to 2000 μm m-1 and -250 to 230°C. The results obtained showed that strain measurement is affected by an error always less than ±2 μm m-1 for the whole range of simulated strains, while the error in temperature evaluation is always less than 0.6 °C. The effect of cross-talk between the two signals was determined to be insignificant.

Original languageEnglish
Pages (from-to)502-506
Number of pages5
JournalMeasurement Science and Technology
Issue number4
Publication statusPublished - Apr 2001



  • Simulataneous temperature and strain measurements
  • Temperature and strain measurements
  • Temperature and strain sensors

ASJC Scopus subject areas

  • Polymers and Plastics
  • Ceramics and Composites
  • Materials Science (miscellaneous)

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