This Third Edition of the standard treatment of biomedical instrumentation has been revised and updated, and now includes coverage of therapeutic and rehabilitative devices. Four new chapters cover stimulation and stimulators, radiant-energy devices, ventilators and anesthesia. Presentation is easy to read, and mathematics is kept to a minimum. Life and physical scientists will find many applications of each principle of biomedical instrumentation. Covers the latest developments including modern non-invasive techniques, transcutaneous chemical sensors, a capacitive blood pressure transducer, and digital techniques used in signal processing.