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Year 2007, Volume: 20 Issue: 3, 61 - 67, 29.03.2010

Abstract

References

  • Eroğul, O., Karagöz, İ., Üreten, O., “Biyomedikal Mühendislik Birimlerinin Hastanelerdeki Kalite Güvence Sistemine Katkıları ve Etkinliği”, Yöneylem Araştırması ve Endüstri Mühendisliği XX. Ulusal Kongresi, 227, Kara Harp Okulu, Ankara, 1999.
  • Karagöz, İ., ” Hastane Organizasyonu İçinde Biyomedikal ve Klinik Mühendislik Birimlerinin İşlev ve Önemi ”, Sağlık Hizmetlerinde Toplam Kalite Yönetimi ve Performans Ölçümü Sempozyumu, 13-26, Ankara,1996.
  • “Evolving Needs for Metrology in Trade, Industry and Society and the Role of the BIPM”, CIPM, TS EN ISO 9001, Türk Standardları Enstitüsü, TSE, 1994.
  • Karagöz, İ., Tıbbi Teknoloji Yönetimi, Haberal Eğitim Vakfı, Ankara, 1998. Karagöz,
  • İ., “Hastanelerde Kullanılan Tıp Teknolojilerine Klinik Mühendisliğinin Etkileri”, Tıp ve Hastane Alanındaki Fransız Teknolojileri Semineri, 49-54, İstanbul, 1998.
  • Taylor, B.N., Kuyatt, C.E.,”Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results”, NIST Technical Note 1297, 1994 Edition, 1993.
  • Sadıkhov, E., Kangı, R., Uğur, S., “Ölçüm Belirsizliği”, Ulusal Metroloji Enstitüsü, UME 016, 1995.
  • “The Expression of Uncertainty and Confidence in Measurement”, UKAS, Edition 2, 2006. APPENDIX
  • E1. For t-distribution, Student’s constant, tν p,ν , with normal distribution, where ν is the degree of freedom at the associated level of confidence, p. Degree of Freedom ν= N−1 t%95 t%99 1.729 1.725 1.721 1.717 1.714 1.711 1.708 1.706 1.703 1.701 1.699 1.697 1.684 1.68 1.66 1.658 1.98 ∞ 1.645 861 845 831 819 807 797 787 779 771 763 756 75 704 69 626 617 576 960 1.740 2.110 2.898 1.734 2.101 2.878

The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration

Year 2007, Volume: 20 Issue: 3, 61 - 67, 29.03.2010

Abstract

As a result of the calculation of expanded uncertainty, the measurement uncertainty defines an interval within which the measurand lies. Expanded uncertainty is generally calculated by using z-distribution in conjunction with coverage factor  k . But, by using z-distribution, correctly  finding the interval which the measurand lies within, with a specified confidence level, requires too many measurements which must be done repeatedly. In an ideal case, the number of measurements must approach infinity. Since this is not the case in practice, if the number of measurements is small, using Student’s factor tν,p  instead of coverage factor  k  results in the definition of a relatively wider interval and more accurate results. This situation is shown, as a result of an analysis done on a biomedical system, by calculating the measurement uncertainty and the interval within which the measurand lies in a confidence level of 95%, comparing two different approaches.

 

Key Words: Biomedical calibration, Measurement uncertainty, t-distribution, z-distribution

References

  • Eroğul, O., Karagöz, İ., Üreten, O., “Biyomedikal Mühendislik Birimlerinin Hastanelerdeki Kalite Güvence Sistemine Katkıları ve Etkinliği”, Yöneylem Araştırması ve Endüstri Mühendisliği XX. Ulusal Kongresi, 227, Kara Harp Okulu, Ankara, 1999.
  • Karagöz, İ., ” Hastane Organizasyonu İçinde Biyomedikal ve Klinik Mühendislik Birimlerinin İşlev ve Önemi ”, Sağlık Hizmetlerinde Toplam Kalite Yönetimi ve Performans Ölçümü Sempozyumu, 13-26, Ankara,1996.
  • “Evolving Needs for Metrology in Trade, Industry and Society and the Role of the BIPM”, CIPM, TS EN ISO 9001, Türk Standardları Enstitüsü, TSE, 1994.
  • Karagöz, İ., Tıbbi Teknoloji Yönetimi, Haberal Eğitim Vakfı, Ankara, 1998. Karagöz,
  • İ., “Hastanelerde Kullanılan Tıp Teknolojilerine Klinik Mühendisliğinin Etkileri”, Tıp ve Hastane Alanındaki Fransız Teknolojileri Semineri, 49-54, İstanbul, 1998.
  • Taylor, B.N., Kuyatt, C.E.,”Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results”, NIST Technical Note 1297, 1994 Edition, 1993.
  • Sadıkhov, E., Kangı, R., Uğur, S., “Ölçüm Belirsizliği”, Ulusal Metroloji Enstitüsü, UME 016, 1995.
  • “The Expression of Uncertainty and Confidence in Measurement”, UKAS, Edition 2, 2006. APPENDIX
  • E1. For t-distribution, Student’s constant, tν p,ν , with normal distribution, where ν is the degree of freedom at the associated level of confidence, p. Degree of Freedom ν= N−1 t%95 t%99 1.729 1.725 1.721 1.717 1.714 1.711 1.708 1.706 1.703 1.701 1.699 1.697 1.684 1.68 1.66 1.658 1.98 ∞ 1.645 861 845 831 819 807 797 787 779 771 763 756 75 704 69 626 617 576 960 1.740 2.110 2.898 1.734 2.101 2.878
There are 9 citations in total.

Details

Primary Language English
Journal Section Electrical & Electronics Engineering
Authors

İrfan Karagöz

Serkan Cecelioğlu This is me

Publication Date March 29, 2010
Published in Issue Year 2007 Volume: 20 Issue: 3

Cite

APA Karagöz, İ., & Cecelioğlu, S. (2010). The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration. Gazi University Journal of Science, 20(3), 61-67.
AMA Karagöz İ, Cecelioğlu S. The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration. Gazi University Journal of Science. March 2010;20(3):61-67.
Chicago Karagöz, İrfan, and Serkan Cecelioğlu. “The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration”. Gazi University Journal of Science 20, no. 3 (March 2010): 61-67.
EndNote Karagöz İ, Cecelioğlu S (March 1, 2010) The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration. Gazi University Journal of Science 20 3 61–67.
IEEE İ. Karagöz and S. Cecelioğlu, “The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration”, Gazi University Journal of Science, vol. 20, no. 3, pp. 61–67, 2010.
ISNAD Karagöz, İrfan - Cecelioğlu, Serkan. “The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration”. Gazi University Journal of Science 20/3 (March 2010), 61-67.
JAMA Karagöz İ, Cecelioğlu S. The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration. Gazi University Journal of Science. 2010;20:61–67.
MLA Karagöz, İrfan and Serkan Cecelioğlu. “The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration”. Gazi University Journal of Science, vol. 20, no. 3, 2010, pp. 61-67.
Vancouver Karagöz İ, Cecelioğlu S. The Analysis of Different Approaches Related to the Measurement Uncertainty in Biomedical Calibration. Gazi University Journal of Science. 2010;20(3):61-7.