He created the first practical ECG machine with surface electrodes.

To apply the technique, four surface electrodes are placed along the muscle of interest.

Instead of attaching to an impedance analysis system via surface electrodes, this hand-held array can be placed directly on the subject.

During a sleep study, surface electrodes will be put on your face and scalp and will send recorded electrical signals to the measuring equipment.

This can be accomplished either by surface electrodes (usually in large animals) or implanted electrodes (often wires thinner than a human hair).

A surface electrode (grounding pad) is placed over the medial aspect of the calcaneus on the same leg.

The screen would be made of a liquid crystal filter and would transmit a picture according to the voltage applied to its surface electrodes.

It is recorded using surface electrodes.

The nerve signals are measured with surface electrodes (similar to those used for an electrocardiogram), and the test is only slightly uncomfortable.

Numerous metallic bodies are noted representing surface electrodes.