| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6ad2089096b4a354419eaa8a2747ffb3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-1772
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J2003-2866
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-0623
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-06106 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-255
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-274
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-0297
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-2803 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J3-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J3-02 |
| filingDate |
2005-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_061a383be5721d6d1d5c38dd0206633b |
| publicationDate |
2006-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-2424696-A |
| titleOfInvention |
Spectrometer fault detection using optical reference source |
| abstract |
A spectrometer for receiving a multiwavelength beam of radiation to be analysed has a photodetector 6 comprising an array of detection elements producing electrical output signals representative of radiation detected by detection elements, and a splitter 4 splitting the beam into components of different wavelengths and directing the components onto the detection elements. To increase the reliability of measurement readings, the spectrometer additionally includes an optical reference source A, B or C for illuminating the detection elements with reference radiation, and a monitoring arrangement indicating an error condition in dependence on (i) first electrical output signals from the array in response to detection of the components of different wavelengths in the absence of illuminating reference radiation, and (ii) second electrical output signals from the array in response to detection of the components of different wavelengths together with illuminating reference radiation. The inclusion of such a reference source enables the diagnosis of faulty detection elements of the array as well as enabling more reliable analysis of the incoming light spectrum. Other in-field and production failures may also be diagnosable more easily by the inclusion of such a reference source. The system may be used to monitor oxygen saturation in blood. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3396357-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11137288-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11674846-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102738039-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2529496-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102738039-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10663344-B2 |
| priorityDate |
2005-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |