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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | May, A. Andarawis, E. |
| Copyright Year | 2007 |
| Description | Author affiliation: Gen. Electr., Niskayuna (May, A.; Andarawis, E.) |
| Abstract | We describe a new type of compact transducer that can be used to initiate and amplitude modulate low-intensity radio-frequency atmospheric pressure plasma (RF-APP) and measure small variations in its electrical properties related to its mechanical structure. The new transducer consists of a quarter wave transmission line where the ground return path is a coaxial solenoid winding. The electrical properties of the plasma are measured at the low-voltage end of the transducer, eliminating the need to measure kV-level voltages near the plasma discharge. We show results from a transducer prototype suitable for use in a harsh-environment as clearance sensor with best sensitivity between 0.1 - 5.0 mm from a conductive object. Application of RF-APP to other NDE disciplines, such as air-coupled ultrasound generation, plasma spectroscopy and gas flow measurement, is also likely to be advantageous, especially in harsh environments where existing approaches are prohibitively expensive or complex. |
| Starting Page | 818 |
| Ending Page | 820 |
| File Size | 264589 |
| Page Count | 3 |
| File Format | |
| ISBN | 9781424412617 |
| ISSN | 19300395 |
| DOI | 10.1109/ICSENS.2007.4388526 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-10-28 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Arc discharges Transducers Plasma measurements Plasma properties Plasma waves Transmission line measurements Electric variables measurement Plasma applications Atmospheric-pressure plasmas Atmospheric measurements |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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