English to Spanish Tech/Engineering Medical: Instruments Dynamic contact angle meter and tensiometer

"The measurement of the interfacial tension (IFT) with the pull-method will be done in three steps. First the buoyancy of the ring in the liquid with the lower density is measured. In the second step the surface of the liquid with the higher density is detected. The third step is the real measurement of the interfacial tensions between the two not miscible liquids."


(Sé que no se trata de un instrumento médico, pero no sabía qué categoría le correspondería... ¡muchas gracias!)