Location History:
- Bristol, GB (2006)
- Windmill Hill, GB (2006)
Company Filing History:
Years Active: 2006
Title: **Alasdair McPhee: Innovator in Magnetic Field Signal Technologies**
Introduction:
Alasdair McPhee, based in Bristol, GB, is a notable inventor recognized for his contributions to the field of underground object location technologies. With two patents to his name, McPhee has developed innovative methods that enhance the efficiency of magnetic field signal generation.
Latest Patents:
Among his latest patents, McPhee introduced a groundbreaking **method and system for producing a magnetic field signal usable for locating an underground object**. This invention details how transmitted magnetic field signals can be implemented to effectively locate items beneath the surface. The system incorporates a carrier component frequency that is substantially equal to an integer multiple of 300 Hz. This frequency alignment with both 50 Hz and 60 Hz facilitates optimal information transfer even in challenging environments characterized by interference from power lines.
His second patent, titled **encoding scheme for producing magnetic field signals having desired spectral characteristics**, outlines methods for generating an encoded information signal that minimizes low frequency spectral components while maintaining a stable average energy level. Specifically, this system operates by producing M bit code words for each N bits of an information signal, ensuring the balance of logic zero and one bits, and restricting consecutive identical bits. This innovation is particularly relevant for applications in underground location technologies.
Career Highlights:
McPhee's career is marked by his association with **Radiodetection Limited**, where he continues to push the boundaries of technology in the field. His work significantly contributes to the advancement of methodologies that enhance underground detection capabilities.
Collaborations:
Throughout his career, McPhee has collaborated with notable colleagues such as Richard William Fling and Luigi Lanfranchi, both of whom bring their expertise to the innovative projects at Radiodetection Limited. This collaborative environment fosters creativity and enables the development of advanced technologies.
Conclusion:
Alasdair McPhee's inventive spirit and dedication to improving magnetic field signal technologies have positioned him as a key figure in his field. His patents reflect a deep understanding of the challenges posed by environmental interferences, paving the way for future developments in ground-penetrating technologies.