Holroyd Instruments Ltd draw upon AE experience stretching all the way back to 1974 when Trevor Holroyd (the founder of the company) started his research in this field in the prestigious Advanced Research Labs of Rolls Royce. Both fundamental research and development of Airline and Shop-Floor applications continued until in 1991 he left Rolls-Royce and set up Holroyd Instruments.

This background formed an excellent starting point from which to develop the unique AE sensor and AE signal processing upon which the MHC series of products are based. The first of these, the MHC - Machine Health Checker, was launched in 1993 and immediately carved out a reputation for being able to pick up machine faults even when other CM instruments failed.

The story of the MHC is one of initial scepticism that anything so simple could really work in the industrial environment. The phenomenon of the MHC is its ability to time and again cause such scepticism to evaporate as soon as it is seen in use detecting the presence of faults and localising their position.

Today the technical team at Holroyd Instruments draw upon unparalleled experience in the technology of AE stretching back more than 30 years and covering all facets of transducer design, signal conditioning, signal processing, applications development and data interpretation.

We are proud of the history of Holroyd Instruments. It is a history of technical innovation, honesty and value for money. These are the same principles on which the future will be built.