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DENSITOMETER FOR ABSOLUTE MEASUREMENTS OF THE TEMPERATURE DEPENDENCE OF DENSITY, PARTIAL VOLUMES, AND THERMAL EXPANSIVITY OF SOLIDS AND LIQUIDS.

Author(s) : CRAUBNER H.

Type of article: Article

Summary

THE INSTRUMENT IS BASED ON THE HYDROSTATIC METHOD. IT EMPLOYS A TWO-CHAMBER MEASURING SYSTEM AND AN ELECTRONIC BALANCE. IT CAN BE USED DOWN TO 173 K (-100 DEG C) AND UP TO 573 K (300 DEG C). A SMALL, POLISHED BUOYANCY BODY OF FUSED SILICA SERVES AS A CALIBRATION STANDARD. THE THEORETICAL FOUNDATIONS OF HYDROSTATIC DENSITY MEASUREMENTS ARE REVIEWED AND PILOT EXPERIMENTS ARE REPORTED. THE RESULTS DEMONSTRATE THAT THE INSTRUMENT CAN BE USED FOR PRECISE, RAPID DENSITOMETRIC INVESTIGATIONS OF SMALL SAMPLES OF SOLIDS (5-700 MG) AND LIQUIDS (5-100 CM3 ), INDEPENDENT OF FORM AND SHAPE.

Details

  • Original title: DENSITOMETER FOR ABSOLUTE MEASUREMENTS OF THE TEMPERATURE DEPENDENCE OF DENSITY, PARTIAL VOLUMES, AND THERMAL EXPANSIVITY OF SOLIDS AND LIQUIDS.
  • Record ID : 1987-0877
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 57 - n. 11
  • Publication date: 1986
  • Document available for consultation in the library of the IIR headquarters only.

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