The article discusses the requirements for automated control systems in the production of Earth orientation devices. Various types of interferometers are analyzed for use in an automated control system for the manufacture of optical instruments for orientation of spacecraft on the Earth. An overview of the most common interferometer models is given, the characteristics and features of their schemes, development trends and manufacturers are discussed in detail. A comparison was made of the parameters of a number of imported and domestic interferometers suitable for use in an automated control system. The advantages and disadvantages of interferometers according to the schemes of Jamen, Mach-Zehnder, Sagnac, Michelson and Fizeau are considered. The Jamen interferometer was invented for the first time in 1856, to measure small refractive indices of gases. The Mach-Zehnder interferometer was developed on a similar principle, its main feature is that the beams of the rays obtained can be separated at a sufficiently large distance using a semitransparent mirror. In 1913, the Sagnac interferometer was invented; in its design, the light is divided by a semitransparent plate-divider into two beams, which propagate in a circle and are reduced by mirrors back to the divider. Albert Michelson in 1890 proposed an interferometer scheme, the basis of which is a light-splitting mirror. One of the most common is the Fizeau interferometer scheme, proposed in 1868. In this type of device, interference occurs in the gap between two reflecting surfaces. Based on the parameters of the problem under study, the choice in favor of the interferometer configuration according to the Fizeau scheme is justified. Interferometer OptoTL-60/125 from LLC "Optical laboratory" meets all the requirements.

Keywords: automated control system, laser interferometer, Fizeau interferometer, optics, photonics, optical production, interferometry

The paper deals with the problem of measuring device micro consumption. A measuring module has been developed for solving this problem. The module is included in the measurement setup for which the measurement procedure is given. As a device under investigation, a metering device for hot and cold water is used. A technique has been developed for estimating the maximum operating time of a device with a pulsed current consumption.

Keywords: micro current consumption, measuring circuit, instrument amplifier, zero drift

This paper provides an overview of the types of existing natural gas consumption meters. A comparison is made of the instruments of various manufacturers present on the market. The main characteristics of the counters are named, the definitions for each characteristic are given. The problem of temperature compensation of flow rate depending on the temperature of the working medium is considered. The error in measuring gas at temperature differences leads to difficulties in predicting the consumption of energy resources. Two existing approaches to the solution of the problem are given. The ways of solution for the task of including metering devices in unified automated energy accounting systems are also shown.

Keywords: flowmeters of natural gas, diaphragm counters, automated metering systems, energy resources, thermal correction

In this paper, we evaluate the water meters available on the market, their advantages and disadvantages are given. The classification of water meters and the assessment of their specific application are given. The main problem at the moment in measuring the flow of water resources is the accuracy of measurement on all flow ranges without a significant increase in the price for the retail sale of the meter. It is shown that the most problematic zone of the range is the minimum and drop rate. The second most important is the maximum flow rate and the accompanying hydraulic shock (in the case when the transition time from zero flow to maximum is negligible). The paper noted that at the moment there are no accounting devices on the market that solve both problems described. It is also shown that it is possible to make the meter more attractive to the consumer with the help of additional (not metrological functions). For example, an important function is the signaling of long-term leaks in the system.

Keywords: water meter, counter, measuring vane, acoustic

This article describes an estimation of developed data exchange protocol robustness. Protocol is used in wireless connectivity. This protocol was made for delivering data from a meter to GSM-concentrator. This system is a part of hardware-software complex for energy resources and water metering. To solve this problem an imitation model was developed, which consider various collisions on the line. The purpose of modeling is to estimate probability of failure while transmitting daily data from meters to GSM-concentrator. The model was made of N random number generators, the period of time is divided into time slots. These generators give random slots which is a modeling of random transmissions. During modeling we consider a simultaneous transmission of two generators as a failure. Then the model was modified to address the possible “semi-collision”, when two generators use slots which are close to each other. The results of modified model show that probability of failure using developed protocol is negligible.

Keywords: еnergy resource, meter, complex, radio channel, probability, collision, failure, imitation model

This paper analyzes two types of automatic flow measuring systems, energy resources and water produced in Russia and in other countries. The main features of the division scheme constructionof for systems with the collection of telemetry data in Energosbyt and based on the counters with programmable smart cards and the ability to load switching. The advantages and disadvantages of such systems are considered. The article presents the basic elements of modern automated flow measuring systems, energy resources and water: counters and power, as well as data collection and transmission device; communication and communication equipment; A computer with special software installed; Software for data exchange measurements with other companies or electricity supplier; Software for predicting energy consumption and water.

Keywords: automated system of control and accounting of energy resources, wireless technology, multiple access to the radio channel, energy accounting device.

In this paper basic problems of safety control during metering complex development are observed. The system being analyzed was divided into two parts:low level (energy meters and GSM-concentrators) and high level (GSM-channel and server). These two parts analyzed before making models for each of them. The whole system is considered a queuing system, main techniques are observed. Analytic model is developed for low level of system, and imitational model is developed for high level. The most safety critical element is recognized. The resulting models could be used in future work as an event generators for analytic software.

Keywords: queuing system, modeling, imitational model, complex, energy resource, energysaving

Today developing specialized microelectronics in Russia is an actual problem because many components are absent on the open market, and also because import substitution is a vital task. One can’t make front-end products just by copying, new electronic components must be developed. These components needed in real production sector of economics. One must be aware that to develop the product with competitive ability only some universal scheme must be realized. Nowadays the market is being overpopulated by different smart sensors: temperature, gas, ph-metering. These products are used in different sectors of economics from smart houses making to heavy machinery production. World market has specialized electronics for signal conditioning called analog front-end (AFE). Usage of these components allow to make end-products of significantly smaller size, and also to make their self-cost lower. Smart vibration sensors do not have its AFEs today, so the problem of minimizing their size is not solved. To develop such electronics one need to form a basic structure of AFE suitable for all vibration measurement. For the basis for this structure can be used the structure of a sensor itself, and products already put to market could be used for an example of such electronics. There are certain differences between present AFEs and needed ones for smart vibration sensors. Most of differences concentrated in the input schemes and ADC.

Keywords: smart sensor, analog front-end, microelectronics, vibration sensor, piezoelectric element, signal conditioning

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