| 摘要 |
<p>A system and method of the present invention measures the relative stress in the cladding of a nuclear fuel rod (10) caused by the internal gas pressure of the rod. This is done by determining the attenuation ratio of two specific frequencies from a broadband low frequency acoustic energy spectrum. Relative pressure differentials are measurable and therefore any loss of fuel rod gas pressure is a direct indication of fuel rod cladding failure.</p> |
