An instrument for the measurement of stress relaxation in shear is described. The force is detected by a sensitive piezoresistive pressure transducer. The requirement of constant strain can be fulfilled within less than 1%. Preset values of shear strain can be imposed on the sample within 0.1 sec. This instrument is suitable for soft solids and elastic liquids with a lower limit of ∼ 1 sec for the relaxation time. Results are given for wheat flour dough, a gelatinous deoxycholate complex and a gelatin gel. The instrument is simple, robust, and reliable, as well as inexpensive. © 1980.
Bohlin, L., Carlson, T. L. G., & Bäckström, G. (1980). Cone-plate instrument for stress relaxation measurements. Journal of Colloid And Interface Science, 73(1), 61–65. https://doi.org/10.1016/0021-9797(80)90122-8