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Evaluation of several ultrasonic flowmeter transducers in cryogenic environment
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Moughon, W. C. |
| Copyright Year | 1981 |
| Description | Eighteen piezoelectric ultrasonic flowmeter transducers were laboratory tested to determine their suitability and long range reliability for use by the National Transonic Facility (NTF) to measure the flow rate of 450 Kg/sec of liquid nitrogen (LN2). Tests included thermally cycling each transducer 50 to 150 times over a temperature range of 295 K (ambient) to 77 K (LN2). The transducers were submerged in liquid nitrogen for 1 to 4 hours and the signal strength and quality noted. Results disclose that the current state-of-the-art ultrasonic flow transducers are very reliable and will meet the stringent requirements of the NTF. |
| File Size | 1077447 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810016818 |
| Archival Resource Key | ark:/13960/t07x16k93 |
| Language | English |
| Publisher Date | 1981-04-01 |
| Access Restriction | Open |
| Subject Keyword | Piezoelectric Transducers Transonic Wind Tunnels Liquid Nitrogen Thermal Cycling Tests Flowmeters Reliability Analysis Ultrasonic Wave Transducers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
