ECVT Colins

ECVT Colins is a real-time coal quality inspection instrument, built directly on Material Inspection research rather than the process-imaging line. Its planar and conforming sensor geometries come from research into which configuration reads best through flat versus curved structures, and that same framework's proven extension to bulk permittivity mapping — reading moisture distribution through packed granular media — is the direct precedent for grading moisture, ash fraction, and density through a bulk coal mass without extracting a sample.

The instrument mounts externally on bunker walls, chute sections, or conveyor transfer points. No penetration, no contact with the coal stream, no sampling probes. T-configuration CMOS switching — an architecture engineered specifically to strip stray capacitance out of ECVT hardware — eliminates parasitic signal at the circuit level, exposing the genuine dielectric contrast between moisture, ash, and carbon content at sub-femtofarad precision, a signal magnitude standard capacitance systems cannot resolve in dense bulk solids.

The same dielectric-contrast principle has been field-validated in bulk mineral processing, where real-time column flotation monitoring of sulphide ore used a multi-channel capacitance sensor to track solids concentration through the collection zone as collector and frother dosing changed. ECVT Colins applies that same real-time, non-sampling compositional read to coal — continuous, non-destructive grading in place of manual sampling and laboratory assay.