Instruments for measuring acid number in the synthesis of unsaturated polyesters

摘要

Device for measuring acid number in the synthesis of unsaturated polyesters, characterized in that it introduced a capacitive sensor placed in the reaction zone, Autogenerating converter with frequency output, connected to the sensor coaxial waveguide and structurally combined with them and programmable detector comprising a digital frequency detector, a microcontroller, a digital display, controls and calibration, digital output.