Patent ID: 8076943
Filing Date: 2011-12-13
Classification: A61B,G01R

Abstract:
1. An impedance-based arc detector for a CT scanner, comprising: an arc detection module having a power source, a signal processor electrically connected to the power source for energizing said signal processor, and at least three electrical conductors, each electrically connected to the signal processor for reading an impedance-based signal within at least one of the electrical conductors, wherein the first conductor is coiled around a high-voltage power cable of an x-ray tube of a CT scanner for reading an induced signal at the high-voltage power cable of the x-ray tube, the second conductor is coiled around a high-voltage cable of an anode tank of the x-ray tube for reading an induced signal at the high-voltage power cable of the anode tank, and the third conductor is coiled around a high-voltage cable at a cathode tank of the x-ray tube for reading an induced signal at the high voltage cable at the cathode tank, wherein a first impedance-based signal read by the signal processor is at least one of the induced signal at the high-voltage power cable of the x-ray tube, the induced signal at the high-voltage power cable of the anode tank, or the induced signal at the high-voltage cable at the cathode tank to read a primary spit event, and a second impedance-based signal is read by the signal processor is at least one of the induced signal at the high-voltage power cable of the x-ray tube, the induced signal at the high-voltage power cable of the anode tank, or the induced signal at the high-voltage cable at the cathode tank to read a secondary spit event.