Explosive material detection
First Claim
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1. A system for detecting explosive materials, comprisingat least one high power electromagnetic transmitter configured to radiate a sample with high power electromagnetic radiation;
- at least one electromagnetic sensor configured to detect one or more non-linear electromagnetic reflections having a harmonic frequency corresponding to one or more harmonic frequencies of the radiated high power electromagnetic radiation, wherein the non-linear electromagnetic reflections are reflected by the sample in response to the radiated high power electromagnetic radiation; and
a processor configured to control the at least one high power electromagnetic transmitter to control at least one characteristic of the radiated high power electromagnetic radiation;
wherein the processor is further configured to process the detected one or more non-linear electromagnetic reflections having a harmonic frequency to identify a match between the detected one or more non-linear electromagnetic reflections having a harmonic frequency and one or more harmonic reflections associated with at least one explosive material by comparing the one or more non-linear electromagnetic reflections with representations, loaded from a memory, of the one or more harmonic reflections associated with at least one explosive material,wherein the processor, upon identifying the match, is further configured indicate detection of an explosive material,wherein the processor is further configured to indicate a type of the detected explosive material,wherein the processor controls the high power electromagnetic transmitter to radiate the high power electromagnetic radiation at a power density level configured to minimize penetration depth of the high power electromagnetic radiation into the sample and cause the high power electromagnetic radiation to reflect off of the sample non-linearly, producing the one or more non-linear electromagnetic reflections having the harmonic frequency corresponding to the one or more harmonic frequencies of the radiated high power electromagnetic radiation, andwherein the processor further controls the high power electromagnetic transmitter to radiate the high power electromagnetic radiation at the power density level to avoid ignition or detonation of the sample.
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Abstract
A system for detecting explosive materials. The system includes radiated high power electromagnetic radiation at one or more frequencies in the millimeter wave spectrum or above to interact with a sample and be reflected therefrom. The system also includes at least one electromagnetic sensor to measure emissions at harmonic frequencies and characteristics unique to one or more explosive materials. The system also includes a processor to collate and maintain a lookup table to identify specific explosive material types.
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Citations
16 Claims
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1. A system for detecting explosive materials, comprising
at least one high power electromagnetic transmitter configured to radiate a sample with high power electromagnetic radiation; -
at least one electromagnetic sensor configured to detect one or more non-linear electromagnetic reflections having a harmonic frequency corresponding to one or more harmonic frequencies of the radiated high power electromagnetic radiation, wherein the non-linear electromagnetic reflections are reflected by the sample in response to the radiated high power electromagnetic radiation; and a processor configured to control the at least one high power electromagnetic transmitter to control at least one characteristic of the radiated high power electromagnetic radiation; wherein the processor is further configured to process the detected one or more non-linear electromagnetic reflections having a harmonic frequency to identify a match between the detected one or more non-linear electromagnetic reflections having a harmonic frequency and one or more harmonic reflections associated with at least one explosive material by comparing the one or more non-linear electromagnetic reflections with representations, loaded from a memory, of the one or more harmonic reflections associated with at least one explosive material, wherein the processor, upon identifying the match, is further configured indicate detection of an explosive material, wherein the processor is further configured to indicate a type of the detected explosive material, wherein the processor controls the high power electromagnetic transmitter to radiate the high power electromagnetic radiation at a power density level configured to minimize penetration depth of the high power electromagnetic radiation into the sample and cause the high power electromagnetic radiation to reflect off of the sample non-linearly, producing the one or more non-linear electromagnetic reflections having the harmonic frequency corresponding to the one or more harmonic frequencies of the radiated high power electromagnetic radiation, and wherein the processor further controls the high power electromagnetic transmitter to radiate the high power electromagnetic radiation at the power density level to avoid ignition or detonation of the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for detecting explosive materials, the method comprising:
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radiating a sample with high power electromagnetic radiation using at least one high power electromagnetic transmitter; detecting, using one or more electromagnetic sensors, one or more non-linear electromagnetic reflections having a harmonic frequency corresponding to one or more harmonic frequencies of the radiated high power electromagnetic radiation, wherein the non-linear electromagnetic reflections are reflected by the sample in response to the radiated high power electromagnetic radiation; controlling, by a processor, the at least one high power electromagnetic transmitter to control at least one characteristic of the radiated high power electromagnetic radiation and to radiate the high power electromagnetic radiation at a power density level configured to minimize penetration depth of the high power electromagnetic radiation into the sample and cause the high power electromagnetic radiation to reflect off of the sample non-linearly, producing the one or more non-linear electromagnetic reflections having the harmonic frequency corresponding to the one or more harmonic frequencies of the radiated high power electromagnetic radiation, where the power density level is configured to avoid ignition or detonation of the sample; identifying, by the processor, a match between the detected one or more non-linear electromagnetic reflections having a harmonic frequency and one or more harmonic reflections associated with at least one explosive material by comparing the one or more non-linear electromagnetic reflections with representations, loaded from a memory, of the one or more harmonic reflections associated with at least one explosive material; indicating, upon identifying the match, detection of an explosive material and a type of the detected explosive material. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification