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I Wolburg

Publications and source records attributed to I Wolburg.

13 recordsLinked to original sources
PubMed1980

Properties of a combined sensor for dynamic measurement of oxygen in simulated respiration.

A combined sensor supplying momentary values of respiratory functions (flow, PO2, and temperature) for calculation of oxygen intake is tested in simulated respiration. Signal conditioning reduces the errors caused by the influence of CO2 on the sensitivity of the oxygen electrode, by the electrode response and time lag. Oxygen intake of 0.38 and 1.49 liters/min simulated by injection of N2 into the respiration pump (10--40 cycles/min) is analyzed by means of the combined sensor (signals conditioned; time constant about 40 msec) and calculated with a mean error of about -10%. The error rises with increase of the time constant as well as the respiration frequence.

Carbon Dioxide↗
PubMed1976

A combined sensor suitable for telemetering respiratory functions.

A system for measuring oxygen consumption from momentary respiratory values of free moving person is described. The main part presented here is a sensor consisting of a flowmeter based on the impeller principle, called 'Wirbelrespirometer', joint with a polarographic electrode sensitive to oxygen, and a very fast reacting thermistor. First comparative studies in computation of respiratory volume and oxygen consumption yielded average deviations against comparison methods of less than +/- 1% for computation of volume, and +/- 4% for computation of oxygen consumption.

Electrodes↗