Other Systems


breathing sensor picture Other documents about systems and instrumentation related to our radiation research, such as the resparitory motion synchroniser (left), and the lung function plethysmograph (right). plethysmograph picture

Further Reading

breathing sensor image

Respiratory motion synchroniser in magnetic resonance imaging

The breathing of the live subject is an interfering effect when imaging. This device measures the breathing cycle and helps to isolate the still period for optimised imaging.

plethysmograph image

Lung function plethysmograph

A device for monitoring lung function through air pressure variations.

peak detector image

A versatile peak detector: updated implementation of an old idea

The purpose of this note is to describe in more detail some of the practical issues associated with peak detector circuits.