title: Addition of a polarizing microscope to the Weissenberg Rheogoniometer.
abstract: This article describes modifications to a sophisticated commercial rheometer, the Weissenberg Rheogoniometer, to allow a sample in the cone and plate or parallel-plate geometries to be observed with a high-quality polarizing microscope. The addition of the microscope does not interfere with the measuring system in any way, so that samples can be observed in the course of rheological experiments.
authors.affiliation: Laboratoire de Physique des Solides, Universite de Paris-Sud, 91405 Orsay, France.
authors.forename: R G
authors.initials: RG
authors.lastname: Horn