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CalibrationCalibration refers to the process of determining the relation between the output of a measuring instrument and the value of the input quantity or attribute, a measurement standard. In non-specialized use, calibration is often regarded as including the process of adjusting the output or indication on a measurement instrument to agree with value of the applied standard, within a specified accuracy. For example, a thermometer could be calibrated so the error of indication or the correction is determined, and adjusted so that it shows the true temperature in Celsius at specific points on the scale. Calibration also can refer to judgments made by a prognosticator. For example, if a weather forecaster is properly calibrated, it will rain on 80% of the days on which she says "there is an 80% chance of rain today".In many countries a National Metrology Institute will exist which will maintain primary standards of measurement which will be used to provide traceability to customer's instruments by calibration. The NMI supports the metrological infrastructure in that country by establishing an unbroken chain, from the top level of standards to an instrument used for measurement. Examples of National Metrology Institutes are NPL in the UK, NIST in the United States, PTB in Germany and many others. Since the Mutual Recognition Agreement was signed it is now straightforward to take traceability from any participating NMI and it is no longer necessary for a company to obtain traceability for measurements from the NMI of the country in which it is situated.See [http://www.bipm.org/en/cipm-mra/] for more information on the Mutual Recognition Agreement.See [http://www.bipm.org/] for the international metrology frameworkFor a calibration to be of any value it must be accompanied by a traceable uncertainty statement to an stated confidence level. This is evaluated through careful uncertainty analysis.In computing, an interactive whiteboard pen or other input method can be calibrated so that relation between the physical pen position and the position of the cursor on the screen is established and properly adjusted. (From the Wikpedia article Calibration.) Download PDF containing detailed information.
Recent Publications on Calibration: |  |
The geometric calibration of cone-beam systems with arbitrary geometry.
A method is proposed to determine the cone-beam x-ray acquisition geometry... | 21st November, 2009
| Imaging Research, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue,
| Phys Med Biol. 2009 Nov 20;54(24):7239-7261.
DOI Direct Link |
Predicting risk of osteoporotic fracture in men and women in England and Wales: prospective derivation and validation of QFractureScores.
OBJECTIVE: To develop and validate two new fracture risk algorithms... | 21st November, 2009
| Division of Primary Care, Tower Building, University Park, Nottingham NG2
| BMJ. 2009 Nov 19;339:b4229. doi: 10.1136/bmj.b4229.
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Identification and quantitation of 3,4-methylenedioxy-N-methylamphetamine (MDMA, ecstasy) in human urine by (1)H NMR spectroscopy. Application to five cases of intoxication.
Identification of 3,4-methylenedioxy-N-methylamphetamine (MDMA, ecstasy)... | 21st November, 2009
| Department of Science, John Jay College of Criminal Justice, City
| Forensic Sci Int. 2009 Nov 16.
DOI Direct Link |
Simultaneous determination of triprolidine and pseudoephedrine in human plasma by liquid chromatography-ion trap mass spectrometry.
A highly efficient, selective and specific method for simultaneous... | 21st November, 2009
| Department of Medicinal and Pharmaceutical Chemistry, Faculty of Pharmacy
| J Chromatogr B Analyt Technol Biomed Life Sci. 2009 Oct 31.
DOI Direct Link |
Phosphorescent sensing of carbon dioxide based on secondary inner-filter quenching.
A study of different strategies to prepare phosphorescence-based sensors... | 21st November, 2009
| Department of Analytical Chemistry, Campus Fuentenueva, Faculty of
| Anal Chim Acta. 2009 Nov 23;655(1-2):66-74. Epub 2009 Sep 30.
DOI Direct Link |
→View more research publications. |
Press Releases About Calibration:
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| Reportlinker Adds Bone Densitometers - Global Trends |
18th November, 2009 |
Reportlinker |
NEW YORK, Nov. 18 /PRNewswire/ -- Reportlinker.com announces that a new market research report is available in its catalogue.
Bone Densitometers - Global Trends
http://www.reportlinker.com/p0164310
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| NewClassic, the New Balances of Mettler Toledo Help Users Create Lasting Value |
19th June, 2009 |
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GREIFENSEE, Switzerland, June 19 /PRNewswire/ -- Mettler Toledo, a leading global supplier of precision instruments and
services is introducing a new balance range, NewClassic, thus replacing the
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| New Microplate Luminometer and NIST Traceable Luminometer Check Plate from Harta Instruments |
16th March, 2009 |
Harta Instruments Inc. |
GAITHERSBURG, Md., March 16 /PRNewswire/ -- Scientists who want to ensure reliable chemiluminescent sensitivity and specificity measurements for their tests should consider the MicroLumi-L2 glow
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| TECNIMED Picks Up Frost & Sullivan Award for its Innovative THERMOFOCUS |
19th January, 2009 |
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LONDON, January 19 /PRNewswire/ -- The 2008 Frost & Sullivan Technology Innovation Award in the
East European Temperature Monitoring Devices Market is presented to TECNIMED
srl for pioneering
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| Quest Diagnostics' Laboratory in India Accredited by Two Leading Laboratory Accrediting Organizations |
17th November, 2008 |
Quest Diagnostics Incorporated |
MADISON, N.J. and GURGAON, India, Nov. 17 /PRNewswire-FirstCall/ -- Quest
Diagnostics Incorporated (NYSE: DGX), the world's leading provider of
diagnostic testing, information and services,
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Companies working in the area of Calibration from Bioportfolio's Biocorporate database : | |
| Company Name | |
Welcome to AccuTek Laboratories, home of comprehensive pipette calibration and pipette repair services as well as best prices on AccuPet, ePet, refurbished Pipetman and Eppendorf at closeout...
www.accuteklab.com/ View full profile
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APS DYNAMICS, INC. based in Carlsbad, California specializes in designing, manufacturing and marketing vibration systems for modal test excitation, low frequency calibration and component test....
www.apsdynamics.com/ View full profile
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Compliance Technology Group, Inc., is a full service consulting firm specializing in Engineering, Calibration and Validation Services for cGMP/cGLP facilites. Professional staff have had over 135...
www.compliancetechgroup.com/ View full profile
| | →View more Calibration related companies. |
BioPortfolio Ltd. offers e-mail and postal lists for Calibration scientists - we have details of around 3430 individuals working on Calibration .
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Wikipedia excerpt, where present, licenced under the GNU Free Documentation License. Resources from the NCBI applied. Selected MeSH subject headings created and maintained by the US NLM are used in conjunction with additional keywords. 2006-2008 MeSH.
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