- Author
-
Creitz, E. C.
- Title
- Gas Density Balance Design Considerations.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Journal
-
Journal of Research of the National Bureau of Standards,
Vol. 72,
No. 3,
187-195,
July-September 1968
- Keywords
-
gas density
|
gravitational fields
- Abstract
- The Nerheim gas density balance operates by measuring the flow produced by differences in density between a sample and a reference gas in the earth's gravitational field. It has been considered theoretically in order to outline the characteristics of the gas flow system, those of the flow measuring anemometers, and the effects of detector volume on peak separation and sensitivity. It is shown that both design parameters and operating conditions affect the performance of the device, and that properly considered compromises can improve its characteristics.