About HFDE Ltd

High Frequency Diagnostics & Engineering (HFDE) Ltd is specialist consultancy business that works in partnership with companies developing new electromagnetic wave sensor technologies and applications. HFDE has particular expertise in high frequency sensing and diagnosis of partial discharge (PD) activity in high voltage (HV) equipment.

HFDE’s founder, Dr Martin Judd, is a Chartered Electrical & Electronic Engineer with 30 years’ experience in both the radar industry (R&D, production) and academia (research, teaching, management). Martin was latterly Professor of High Voltage Technologies at the University of Strathclyde in Glasgow, where he managed the HV Laboratory. His fields of specialisation are represented in the word cloud below.


HFDE builds open and effective working relationships with partners and clients. Confidentiality is assured through the founder’s previous experience of working with commercially sensitive information and managing intellectual property (IP). One of HFDE’s distinctive operating principles is that it does not usually insist on owning any IP generated during the course of its work. This unusual approach helps to streamline product development and removes administrative delays that can otherwise compromise windows for commercial exploitation.