| 释义 |
pneumotachograph|njuːməʊˈtækəʊgrɑːf, -æ-|
[a. G. pneumotachograph (A. Fleisch 1925, in Pflüger's Arch. für die ges. Physiol. CCIX. 722), f. Gr. τάχος speed: see pneumo- and -graph.]
An apparatus for recording the rate of air flow during breathing. Also shortened as ˈpneumotach.
1926Index Med. VI. 539/2 (heading) Pneumotachograph. 1929Arch. Internal Med. XLIV. 295 The pneumotachograph..showed an increased respiratory rate. 1975G. Ruppel Man. Pulmonary Function Testing viii. 80 Pneumotachs utilize various physical and chemical properties to produce an electrical output that can be integrated for measurement of volumes and flows. 1975Nature 4 Sept. 51/1 Forced expiratory flow-volume curves were recorded by a Fleisch No. 3 pneumotachograph connected to a differential pressure transducer..and coupled to a carrier preamplifier.
So pneumoˈtachogram [A. Fleisch, loc. cit., p. 718], a record produced by a pneumotachograph (e.g. a graph of the quantity of air expired or inspired as a function of time); ˌpneumotachoˈgraphic a., of or pertaining to this apparatus or its use; ˌpneumotaˈchography.
1926Q. Cumulative Index to Current Med. Lit. XI. 447/2 (heading) Curve of speed of human respiratory air (pneumotachogram). 1928Q. Cumulative Index Med. III. 854/1 (heading) Pneumotachographic picture in bronchial asthma. 1929Arch. Internal Med. XLIV. 293 Patients with cardiovascular and pulmonary diseases..showed notchings of the pneumotachograms even during respiration standstill. 1930Jrnl. Amer. Med. Assoc. 5 July 83/2 Pneumotachography in combination with electrocardiography is employed in the general examination of the circulation. 1955Jrnl. Physiol. CXXX. 33p The method usually employed to record a pneumotachogram utilizes the pressure differences across an impedance placed in the air-flow stream. 1955Thorax X. 258 (heading) Pneumotachographic measurement of breathing capacity. 1975Nature 30 Oct. 787/2 The breathing pattern of the fish was recorded continuously by pneumotachography (Statham-Godart) and pressure measurements (Statham). |