title: A recording differential respirometer.
abstract: A recording differential respirometer capable of micromeasurement of gaseous changes is described. The rate of volume change under constant pressure is recorded directly. Due to the mechanical nature of the volume measurement, the instrument is drift-free. Factors affecting the sensitivity and correction for deviation due to change in total volumes are discussed.
mesh_terms: D001330:Electronic Data Processing; D013147:Spirometry / Q000295:instrumentation*