Improving the accuracy of three-channel refractometers

A detailed analysis is made of the measurement errors of several three-channel interferometric laser refractometers. The most promising approaches to improving the accuracy of these instruments are discussed.Translated from Izmeritel'naya Tekhnika, No. 11, pp. 35–39, November, 1994.     

Improving the calibration accuracy of gauge blocks

Improvement of calibration accuracy of 1st and 2nd class gauge blocks with the aid of an absolute Kesters interferometer is discussed. Recommendations are proposed for the design of a horizontal interferometer with a two-way measuring circuit for calibration of gauges longer than 100 mm.Translated from Izmeritel'naya Tekhnika, No. 4, pp. 21–22, April, 1995.     

Improving the accuracy of estimation of stochastic pulse signals

A method is described of estimating the parameters of a useful signal on the background of additive periodic and stochastic continuous and pulse noise. An example of technical implementation of the proposed technique is described. Mathematical design equations for the described device are given. Translated from Izmeritel'naya Tekhnika, No. 1, pp. 37–40, January, 1996.     

Improving the accuracy of autotransformer and transformer alternating-current bridges

Variable-ratio and computational methods are described for improving the accuracy of autotransformer and transformer ac bridges that take into account and eliminate the additive and multiplicative components of the systematic error due to connecting leads and jumpers of the measuring circuit. Translated from Izmeritel'naya Tekhnika, No. 6, pp. 61–63, June, 1996.     

Improving the accuracy of nutational NMR magnetic induction meter

Translated from Izmeritel'naya Tekhnika, No. 6, pp. 42–43, June, 1988.