Dielectrometer sensors, probes and sensor arrays, designed for measuring electrical properties, such as conductivity and permittivity, of materials, such as insulators and semiconductors, and geometric properties, such as layer and coating thickness, of multilayered and coated manufactured goods, such as adhesive tapes, display materials, paints and laminates, and used for process and quality control of the manufacture of epoxy, polymer, cellulose, cement, ceramic, and fiber glass composite parts, such as turbine blade coatings, battery separators, pressboard insulation, and wind turbine blades; for field inspections and degradation monitoring of cement or polymer-based structures such as bridges, roads, and pipes; for object detection and discrimination such as detection of buried objects such as plastic and metallic landmines, reinforcement bars in concrete, buried pipes, unexploded ordnance, archaeological artifacts and environmental hazards; and for relating electrical properties of materials and manufactured goods, such as those mentioned above, to mechanical or other process properties, such as state of cure, porosity, water content, toxic chemical absorption, flaw size, and interfacial electrochemical parameters