News Academy of Engineering Sciences A.M. Prokhorov Annotation << Back Mathematical modeling of metrological characteristics of manovacuumm eter constructed on electromagnetic wave resonator basis V.A. Buzanovskii Theoretical consideration of the basic metrological characteristics of the manovacuummeter constructed on the electromagnetic wave resonator basis is carried out in the article. Mathematical expressions for the real and nominal static transformation functions of this device, mathematical expressions for the measurement sensitivity of pressure and vacuum, mathematical expressions for the estimation of absolute and relative measurement errors of pressure and vacuum, mathematical expressions for the estimation of systematic and casual components of a relative measurement error of pressure and vacuum are developed. The analysis of the developed mathematical description is carried out. The results of the analysis are the determination of the basic sources of measurement error – deviations from nominal values of 1) the distance between plates of resonator, 2) the diameter of a «thin» plate of resonator, 3) the thickness of a «thin» plate of resonator, 4) the speed of electromagnetic waves in the environment filling the resonator, 5) the transformation function of detector-amplifier, 6) the transformation function of amplitude-frequency analyzer. Key words: manovacuummeter, pressure, vacuum, resonator, electromagnetic wave, metrological characteristic, static transformation function, measurement sensitivity, measurement error. Contacts: E-mail: vab1960@rambler.ru Pp. 38-47.