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The article deals with the construction of intelligent flow meters, in which primary detector, sensors, analog-to-digital converters, and microprocessors for solving the problem of distribution of functions between the elements of measurement, conversion and calculation systems are integrated. The flow meter contains a jet generator, which is an acoustic multivibrator. Jet generator converts the flow rate into acoustic vibrations, which are converted into a polyharmonic electrical by piezoelectric transducer. An adaptive line enhancer contains an electronically controlled filter on the varicap and allocates an informative first harmonic and functionally processes it in accordance with the analytical expression of the flow rate from the frequency. The microprocessor processes all information from the adaptive line enhancer and measurement channels from the inert gas concentration sensors, which are impedance biological sensors, and from the integral temperature sensor. The measurement results are displayed on the flow meter display and transmitted via digital communication channels to the dispatcher console.

Based on the analysis of the existing schemes and measuring instruments of high temperatures GTE, the article proposes an intelligent system using the developed design of a thermistor made of tungsten-rhenium wire, allowing its installation on the jacks of previously used thermocouples. The calculations of the thermistor, taking into account the dependence of the resistivity change and temperature coefficient of resistance on temperature. Using the conversion functions, the optimal value of the output frequency of the measurement system for transmission over a two-wire communication line with high noise immunity is calculated.

The article is devoted to the approach to the construction of original bit-stream devices, characterized by the high fault-tolerance. This property is achieved due to the original structure of the devices, fault-tolerant forms of information representation and the use of an elemental base with the high degree of technological reliability. A bit-stream multiplier-divider unit is considered as an example; its RTL description is presented. The results of the multiplier-divider unit simulation are shown; the process of the result recovery after the noise influence is presented.

In this report, we suggest an approach to fault-tolerant multichannel digital averaging converter based on the usage of original structural organizations of hardware systems. Such systems are oriented on the processing of the measurement results presented in the pulse stream forms and perform primary functional conversions of pulse data flow on the base of integration of informational processes of measurement data receiving and processing and output of the results. We also describe the example of the hardware implementation of fault-tolerant multichannel digital averaging temperature converter and represent the result of its simulation.