Biopotential subsystem – EEG, ECG, EMG

Part of a larger more complex medical product the electroencephalograph subsystem used a 24-bit 8 channel ADC with integrated ECG/EEG front end. The applications support for this device was almost exclusively for electrocardiograph designs rather than the more sensitive electroencephalograph required for this development. Subsequently, the electronic subsystem can not only be used in systems that detect brain activity (electroencephalograph or EEG) but also in heart monitors (electrocardiogram or ECG) and also in neuromuscular equipment that monitors muscle and nerve activity (electromyography or EMG).

The EEG demonstrator incorporated signal processing in software to compensate for temperature drift and to reject mains pickup which is the dominant noise source in biosensors of this type.

Achievement: A fully functional subsystem was demonstrated using evaluation boards reducing the development risk dramatically and custom PCBs were then developed and integrated into the product.

Recent Case Studies

A Deadly Embrace

We were called in to investigate why test pilots were experiencing lock up of the fuel computer on an aircraft. We analysed and modelled the complete system and found that the main computer and backup were occasionally moving into a deadly embrace, we provided a solution, and the plane is now flying.

A saving approaching 80%

We were engaged to cost reduce a pre-production laser scanning device as part of a production engineering process. We achieved a saving approaching 80%.

Back on Track

Our client was concerned with the progress and quality of the verification and associated documentation for a major component in a new helicopter design that had been outsourced. We were brought in to control and oversee the program. Verification was analysed, corrected and the project was put back on track – the client was happy, […]

Automated Medical Sampling

Automated human fluid sampling was required for use in university hospital laboratories. We developed a desktop application that carefully controlled the sampling and provided a user-friendly test and programming function for researchers. The software is designed for future use as a medical device.

Biopotential subsystem – EEG, ECG, EMG

DAB Radio

This was the first DAB radio to be launched by REVO. Designed to be retrofitted to cars the radio itself was removable and was a comfortable pocket size to be carried between cars. Although wiring harnesses were available to connect audio accessories to many cars, they were problematic, often with expensive installation costs. At the time, […]

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