RDP Electronics has developed transducers suitable for use in triaxial soil testers, where ground samples are subject to pressure applied, most commonly by water or oil. A triaxial shear test is used to measure the mechanical properties of many deformable solids, especially soil, sand, clay, and other granular materials or powders.
Design of the transducer calls for a physically small device, preferably with a through bore permitting cleaning when contaminated with debris, and it must be waterproof. RDP has now designed a wide range of transducers with different armature and cable configurations to optimise their suitability inside a triaxial tester chamber.
