Kompetentnost' 9 –10/120 –121/2014

ISSN 1993-8780

METROLOGY 83

On Verification of Modern Digital Instrumentation

According to MI 1202–86

Dr. Yu.A. Baryshev, Associate Professor, Head of Electrical Measurements Department, FSAEI FVT, Academy for Standardization, Metrology and Certification (Еducational), Moscow, Russia, baryshev@asms.ru

Dr. N.N. Vostroknutov, Associate Professor, Senior Research Worker, Electrical Measurements Department, FSAEI FVT ASMS, Moscow, Russia

key words

measurement methods, calibration, digital measuring instruments, analog-to-digital converters, digital microprocessor-based measuring instruments

Referenсes

More than two decades ago were adopted existing methodological guidelines for verification of digital instrumentation and transducers. During this time there was a real technological revolution in the digital measurement techniques, especially with the appearance of IMC microprocessor. Many of the methods provisions are outdate. That seriously affects the verification quality. We propose employees of the metrological services to make changes and additions to the methodology as well as to the teaching of methodological issues of digital measuring instruments verification.

In the study, we have analyzed the features of microprocessor digital measuring instruments and their effect on the calibration procedure, their main differences from the instruments that make up the error, the effect of fluctuations on the result of the constant voltage component measurement.

In the study, we showed that in the modern digital instrumentation manual it is necessary to specify calculation algorithm used for calculating the measured parameter of the process, acting at the input of the measuring instrument, by measuring its instantaneous values.

Thus, we believe that in the course of the study were declared the necessity of the changes.

1. Vostroknutov N.N., Sredina I.G., Semenyuk A.L., Taube B.S. Metodicheskie ukazaniya MI 1202–86. GSI. Pribory i preobrazovateli izmeritel’nye napryazheniya, toka, soprotivleniya tsifrovye. Obshchie trebovaniya k metodike poverki [Methodical instructions
of MI 1202–86. National Measurement Assurance System. Digital instruments and measuring transducers of voltage, current, resistance. General requirements for the verification procedure].
2. Vostroknutov N.N., Zemel’man M.A. Vliyanie metodiki poverki na kachestvo tsifrovykh vol’tmetrov [Impact of the calibration procedure on the digital voltmeters quality], Izmeritel’naya tekhnika, 1971, no. 8.
3. Vostroknutov N.N. Pogreshnosti poverki tsifrovykh izmeritel’nykh priborov [Verification errors of digital measuring instruments],

Kompetentnost’. — 2013, no. 9–10 (110–11).

4. GOST 22261–94 (2004). Sredstva izmereniy elektricheskikh i magnitnykh velichin. Obshchie tekhnicheskie usloviya (In Russia).
5. Mul’timetry tsifrovye ARRA-301, ARRA-303, ARRA-305. Rukovodstvo po ekspluatatsii [Operating Guide], Moscow, Izdatel’stvo standartov, 2006.
6. Pribory tsifrovye elektroizmeritel’nye PA194I, PA195I, PZ194U, PZ195U, PD194UI, PD194F. Seriya T. Rukovodstvo po ekspluatatsii. Torgovaya marka KS® (Komplekt-Servis), 2012.
7. MI 187–86, 188–86. GSI. Dostovernost’ i trebovaniya k metodikam poverki sredstv izmereniy (In Russia).
8. Kartasheva A.N. Dostovernost’ izmereniy i kriterii kachestva ispytaniy priborov [The reliability of measurements and quality criteria while testing the devices], Moscow, Izdatel’stvo standartov, 1967.
9. Bronshteyn I.N., Semendyaev K.A. Spravochnik po matematike dlya inzhenerov i uchashchikhsya vtuzov: 13-e izd., ispravlennoe
[Reference book on mathematics for engineers and students of technical colleges], Moscow, Nauka, 1986.
10. Grushnitskiy R.I., Mursaev A.H., Smolov V.B. Analogo-tsifrovye periferiynye ustroystva mikroprotsessornykh system [Analog-to-digital peripherals microprocessor systems], Leningrad, Energoatomizdat, 1989.
11. Vostroknutov N.N., Kuznetsov V.P., Solopchenko G.N. K voprosu ob obekte metrologicheskoy attestatsii programm obrabotki dannykh pri izmereniyakh [On the question of the metrological certification of data processing programs in the measurements], Izmeritel’naya tekhnika, 1990, no. 7.
12. Vostroknutov N.G., Evtikhiev N.N. Informatsionno-izmeritel’naya tekhnika. Uchebnoe posobie dlya vuzov dlya special’nosti
‘Informatsionno-izmeritel’naya tekhnika’ [Information and measuring equipment. The manual for specialization ‘Information and measuring equipment’ of universities], Moscow, Vysshaya shkola, 1977.
13. Zemel’man M.A. Metrologicheskie osnovy tekhnicheskikh izmereniy [Metrological basis of technical measurements], Moscow,

Izdatel’stvo standartov, 1991.

14. Vostroknutov N.N. Tsifrovye izmeritel’nye ustroystva. Teoriya pogreshnostey, ispytaniya, poverka [Digital measuring device. The theory of errors, testing, calibration], Moscow, Energoatomizdat, 1990.
15. Korn G., Korn T. Spravochnik po matematike. Dlya nauchnykh rabotnikov i inzhenerov [Reference book on mathematics. For scientists and engineers], Moscow, Nauka, 1974.