| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7be2cb9970245fb335ad1a63b72d07d8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b94d2715cda37c1f23e48f9f4f23422 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-441 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-44 |
| filingDate |
2002-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7b3578c51dc5ac289eb1b93454302eb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3372b4a84fc64cad77da8559d9558e13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c406497025f51780052d78b328924eb4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e91e2c3d0bb8c922ad96dea1d77505e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a7fcb21b95cba559d15a31d354bbe65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3be0644b5d93ec26bb3b9cfee05f692 |
| publicationDate |
2003-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-03076952-A2 |
| titleOfInvention |
Three-frequency nuclear quadrupole resonance (nqr) |
| abstract |
This invention involves an apparatus to measure the nuclear quadrupole (NQR) response of a specimen using three frequencies. Three-frequency NQR involves excitation of at least two transitions that causes an observed signal at a third transition frequency. Thus, the transition excited and detected is not irradiated at all. This reduces undesirable interfering signals due to the excitation, for example as a result of acoustic ringing and/or tank circuit ring-down, since the excitation is not applied at the frequency that is detected. This invention will be particularly useful to detect substances selected from the group consisting of explosives and narcotics using nitrogen NQR. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7352180-B2 |
| priorityDate |
2001-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |