title: A digital timing system for a small animal respiration pump.
abstract: A digital timing system has been developed to control the airflow from a respiration pump used in small animal pulmonary measurements. Three separate periods of up to 10 sec may be selected with millisecond resolution using thumb-wheel switches. A modular design using CMOS technology minimized the number of interconnections among the various parts of the system. A larger number of timing channels, longer time periods, and greater time resolution may be achieved by directly extending the existing design.
authors.affiliation: Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Canada.
authors.forename: C
authors.initials: C
authors.lastname: Ediss
authors.forename: D F
authors.initials: DF
authors.lastname: Biggs
mesh_terms: D000403:Airway Resistance / Q000502:physiology; D000818:Animals; D003626:Data Display; D004581:Electronics; D012121:Respiration, Artificial / Q000295:instrumentation*