Experimental Study of Modern Digital Measuring

Device’s Errors

Dr. N.N. Vostroknutov, Senior Researcher, Associate Professor, Department of Electrical Measurements, FSAEI FVT ASMS, Moscow, Russia, vostrkit@yandex.ru

key words

microprocessor-based digital measuring devices, measurement result, errors, acceptable error limit

References

In this work, I have determined that the possibility of extending a number of requirements of the widely known document MI 1202–86 «Digital instruments and measuring transducers of voltage, current and resistance. General technical requirements and methods of tests» on modern microprocessor-based digital measuring instruments is beyond doubt. However, the possibility of extending to such devices some of the other requirements of this document, for example, on the rules for choosing verified indications, needs to be checked and clarified. In this article I have presented the data obtained during the experimental studies of dependence of modern digital device’s error on the measured quantity’s value. Appropriate changes and additions to the methodology for selecting the indications verified during verification of such devices according to MI 1202–86 are proposed on the basis of these data.

1. Baryshev Yu.А., Vostroknutov N.N. O poverke sovremennykh tsifrovykh izmeritel’nykh priborov po MI 1202–86 [On verification of modern digital instrumentation according to MI 1202–86], Kompetentnost’, 2014, no. 9–10, pp. 74–83.
2. Bronshteyn I.N., Semendyaev К.А. Spravochnik po matematike dlya inzhenerov i uchashchikhsya vtuzov [Handbook of mathematics for engineers and students of technical colleges], Moscow, Nauka, 1986, 544 P.
3. Grushnitskiy R.I., Mursaev А.Kh., Smolov V.B. Analogo-tsifrovye periferiynye ustroystva mikroprotsessornykh system [Analog-digital peripheral devices of microprocessor systems], Leningrad, Energoatomizdat, 1989, 160 P.
4. GOST 22261–2004 Means for measuring electrical and magnetic quantities. General specifications (In Russia).
5. GOST 8.596–2002 State system for ensuring the uniformity of measurements. Metrological assurance for measuring systems. Main principles (In Russia).
6. Vostroknutov N.N. K voprosu o ratsional’nom sootnoshenii nominal’noy stupeni kvantovaniya i sostavlyayushchikh instrumental’noy pogreshnosti tsifrovykh izmeritel’nykh ustroystv [On question of rational correlation of nominal quantization stage and the digital measuring devices’ instrumental error components], Moscow, VNIIMS, 1987, pp. 100–114.
7. Vostroknutov N.N., Zemel’man М.А. Kriteriy prenebrezhimoy malosti pogreshnosti i ego primenenie pri normirovanii metrologicheskikh kharakteristik sredstv izmereniy [The criterion of negligibly small error and its application in the normalization of metrological characteristics of measuring instruments], Metrologicheskaya sluzhba SSSR, 1988, no. 5, pp.15–24.
8. МI 1202–86 State system for ensuring the uniformity of measurements. Digital instruments and measuring transducers of voltage, current and resistance. General technical requirements and methods of tests.
9. Kartasheva А.N. Dostovernost’ izmereniy i kriterii kachestva ispytaniy priborov [Reliability of measurements and quality criteria for instruments testing], Moscow, Izdatel’stvo standartov, 1967.
10. Pribory tsifrovye elektroizmeritel’nye PZ195U. Rukovodstvo po ekspluatatsii [Digital electrical measuring instruments PZ195U. Manual], Krasnodar, ZIP–Partner.
11. APPA-207 Rukovodstvo po ekspluatatsii [APPA-207. Manual], Moscow, 2007, 23 P.
12. МI 2440–97 State system for ensuring the uniformity of measurements. Methods of experimental determination and control of the error characteristics of the measuring systems measuring channels and measuring systems.
13. ANSI/ISA-S 51.1 Process instrumentation terminology. Part 5. Test procedures, Standards and Practices for Instrumentations, 5th ed.,
ISA, 1977.
14. GOST 8.009–2004 Metrological characteristics of measuring instruments.
15. Vostroknutov N.N. Ispytaniya i poverka tsifrovykh izmeritel’nykh ustroystv [Testing and verification of digital measuring devices], Moscow, Energoatomizdat, 1990.