A method and apparatus for simultaneous measurement of pressure and temperature

Pawel Niewczas (Inventor), James Rufus McDonald (Inventor)

Research output: Patent

45 Downloads (Pure)


A system for measuring simultaneously both temperature and ac voltage and/or ac current, the system comprising: a piezo-electric sensor; and optical fiber that includes an optical strain sensor being in contact with the piezo-electric sensor and able to expand or contract therewith and an analyzer for analyzing an optical output of the fiber and strain sensor in response to an optical input, the analyzer being operable to use the optical output to determin the temperature and the ac voltage and/or ac current.

Original languageEnglish
Patent numberUS 2008/0124020 A1
IPCG02B 6/00
Priority date18/09/03
Filing date20/09/04
Publication statusPublished - 29 May 2008


  • piezo-electric sensor
  • temperature measurement
  • pressure measurement
  • ac voltage
  • ac current

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