Calibration of Gas-Metering Constrictions
To extend the range of usefulness of a water calibrated metering constriction in the field of gas flow measurement, a method is described for determining the expansion coefficient (∈) which does not involve measurement of gas flow rate, while the precision of the method is such as to achieve accurac...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
1974-01-01
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| Series: | Measurement + Control |
| Online Access: | https://doi.org/10.1177/002029407400700105 |
| Summary: | To extend the range of usefulness of a water calibrated metering constriction in the field of gas flow measurement, a method is described for determining the expansion coefficient (∈) which does not involve measurement of gas flow rate, while the precision of the method is such as to achieve accuracy tolerances of the order ±0· 30%. When used in conjunction with flow coefficients appropriate to incompressible flow, the flow coefficient appropriate to compressible flow is determined with an overall tolerance well within the limits ±0· 5% over a range of ∈ of 1 > ∈ > 0· 90. |
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| ISSN: | 0020-2940 |