A Device for Measuring Very Low Pressure DifferencesSource: Journal of Fluids Engineering:;1980:;volume( 102 ):;issue: 004::page 499Author:Takeo Nakagawa
DOI: 10.1115/1.3240733Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new technique is proposed for measuring very low pressure differences between two points in a fluid. The device combines an optical velocity measurement with the Hagen-Poiseuille relation to infer the pressure drop. A prototype model has been constructed which measures pressure differences in the range 3.07×10−5 to 1.59×10−3 cm H2 O. The estimated uncertainty of this technique is approximately 4 percent. However, no accurate, independent calibration of this device has yet been achieved.
keyword(s): Pressure , Fluids , Engineering prototypes , Calibration , Pressure drop , Velocity measurement AND Uncertainty ,
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| contributor author | Takeo Nakagawa | |
| date accessioned | 2017-05-08T23:09:00Z | |
| date available | 2017-05-08T23:09:00Z | |
| date copyright | December, 1980 | |
| date issued | 1980 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-26964#499_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/93443 | |
| description abstract | A new technique is proposed for measuring very low pressure differences between two points in a fluid. The device combines an optical velocity measurement with the Hagen-Poiseuille relation to infer the pressure drop. A prototype model has been constructed which measures pressure differences in the range 3.07×10−5 to 1.59×10−3 cm H2 O. The estimated uncertainty of this technique is approximately 4 percent. However, no accurate, independent calibration of this device has yet been achieved. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | A Device for Measuring Very Low Pressure Differences | |
| type | Journal Paper | |
| journal volume | 102 | |
| journal issue | 4 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3240733 | |
| journal fristpage | 499 | |
| journal lastpage | 501 | |
| identifier eissn | 1528-901X | |
| keywords | Pressure | |
| keywords | Fluids | |
| keywords | Engineering prototypes | |
| keywords | Calibration | |
| keywords | Pressure drop | |
| keywords | Velocity measurement AND Uncertainty | |
| tree | Journal of Fluids Engineering:;1980:;volume( 102 ):;issue: 004 | |
| contenttype | Fulltext |