| Autor: |
Ringermacher, H. I., Howard, D. R., Filkins, R. J. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2004, Vol. 700 Issue 1, p477-481, 5p |
| Abstrakt: |
The Flash lamp “thermal forcing function” is typically an exponentially decaying source. Ideally, one would like to achieve a short rectangular heating pulse simulating a Dirac Delta function. Then heat input is precisely limited so that image analysis can begin, without distortion from incoming heat, immediately following the flash. This allows the earliest temporal resolution of events and thus permits thickness measurements of very thin metal components or thermally thin materials. We will describe a high power handling, compact, electrical approach for lamp quenching that cuts off the lamp exponential tail precisely and present results of its effects on measurement. It can handle up to a 1.2 MW-average pulse (2400J / 2ms), thus cutting off undesirable tail after 2 ms. These units can be placed in series with every lamp thus optimizing power usage. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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