title: Photoelectric transducer for measuring the length and diameter of elastic vessels.
abstract: This photoelectric transducer was developed to measure diameter and length variations in arterial segments in vitro and in elastic tubes. Its construction is simple, its nonlinearity small and its sensitivity adequate. The cut-off frequency is 300 Hz and its small phase lag changes linearly with frequency.
mesh_terms: D001158:Arteries / Q000033:anatomy & histology / Q000502:physiology*; D001698:Biomedical Engineering; D004548:Elasticity; D004582:Electronics, Medical / Q000295:instrumentation*; D006801:Humans