Estimation of quantization steps of time interpolator in view of temperature changes

• Autorzy: Sondej D. , Szplet R.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a method of limiting the effect of ambient temperature drift on the measurement uncertainty of a time counter (TC). A change in ambient temperature causes a change in the TC transfer function, i.e. the widths of quantization steps to be exact. Recalibration is a procedure that is then required, but it disturbs the measurement process. However, with the knowledge of the current ambient temperature and having the set of transfer functions identified at different temperatures, it is possible to determine and use the most adequate transfer function and virtually eliminate the temperature impact. For this purpose, three interpolation methods were studied: the nearest neighbor method, linear and polynomial interpolations. A newly evaluated transfer functions were tested in interpolating TC to select the best interpolation method.

Słowa kluczowe

EN

time-digital conversion; two-stage interpolation; multi-edge coding in independent coding lines; time counter; time digitizer

• Wydawca: Wydawnictwo PAK
• Czasopismo: Measurement Automation Monitoring
• Rocznik: 2017
• Tom: Vol. 63, No. 5
• Strony: 192--194
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Sondej D.

• Military University Of Technology, 2 Gen. S. Kaliskiego St., 00-908 Warsaw 49, Poland

autor

Szplet R.

• Military University Of Technology, 2 Gen. S. Kaliskiego St., 00-908 Warsaw 49, Poland

Bibliografia

• [1] Carbone P., Kiaei S., Xu F., Eds.: Design, Modeling and Testing of Data Converters, (Springer-Verlag, Berlin, Germany, 2014).
• [2] Szplet R., Jachna Z., Kwiatkowski P., Różyc K.: A 2.9 ps equivalent resolution interpolating time counter based on multiple independent coding lines. Meas. Sci. Technol., 2013, 24.
• [3] Wu J., Shi Z.: The 10-ps wave union TDC: Improving FPGA TDC resolution beyond its cell delay. IEEE Nucl. Sci. Symp. Conf. Rec., Dresden, Germany, Oct. 2008, pp. 3440–3446.
• [4] Szplet R., Sondej D., Grzęda G.: Interpolating time counter with multi-edge coding, Joint UFFC, EFTF PFM Symp., Prague, Czech Republic, Jul. 2013, pp. 321–324.
• [5] Szplet R., Sondej D., Grzęda G.: High-Precision Time Digitizer Based on Multiedge Coding in Independent Coding Lines, IEEE Trans. Instrum. Meas., 65, (8), Aug., 2016, pp. 1884-1894.
• [6] Sondej D., Szplet R.: A study of the effect of temperature changes on the interpolating time counter, Measurement Automation Monitoring, vol. 61, no. 7, Jul. 2015.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).