Automation of processing of measurement results of parameters of precision frequency measures

2019 ◽  
Author(s):  
O.M. Velychko ◽  
S.M. Shevkun ◽  
O.O. Meshcheriak ◽  
M.V. Dobroliubova
Keyword(s):  
Measurement Results ◽  
Processing Of Measurement Results ◽  
Precision Frequency

scholarly journals Research of the probability of the "flip" of approximating function during the processing of measurement results

2019 ◽  
Vol 104 ◽  
pp. 02003
Author(s):  
Vladimir Marchuk ◽  
Dmitry Chernyshov ◽  
Ilya Sadrtdinov ◽  
Alexander Minaev
Keyword(s):  
Confidence Intervals ◽  
Additive Noise ◽  
A Priori ◽  
Rate Of Change ◽  
Statistical Characteristics ◽  
Sample Length ◽  
Signal Function ◽  
Measurement Results ◽  
Processing Of Measurement Results ◽  
A Priori Uncertainty

The paper presents the results of the studies of the probability of a “flip” of the approximating function when processing the measurement results under conditions of a priori uncertainty about the signal function and the statistical characteristics of additive noise. It is analytically proved that the confidence intervals of the probability of the absence and the presence of a “flip” are equal, which is confirmed by the experimental results. The dependences of the “flipping” of the approximating function on the sample length, the dispersion of additive noise and the rate of change of the function itself are obtained.

MODELING OF STATIC CHARACTERISTICS OF PNEUMATIC STRAIN GAUGE TRANSDUCER

2019 ◽  
pp. 48-52
Author(s):  
A. P. Vasytenko ◽  
A. Yu. Tarakhovskiy
Keyword(s):  
Strain Gauge ◽  
Electrical Signal ◽  
Design Parameters ◽  
Measuring Instruments ◽  
Static Characteristics ◽  
Air Jet ◽  
Jet Impact ◽  
Measurement Results ◽  
Strain Gauge Transducer ◽  
Processing Of Measurement Results

Measuring instruments that implement the pneumatic principle of measurement, have a number of significant advantages: small dimensions of the measuring equipment, allowing to produce multiparameter control in a limited size of the working area, insensitivity to vibration, simplicity of design and reliability. The disadvantage of pneumatic converters is a discrete output electrical signal, which does not allow the processing of measurement results. In this regard, it seems appropriate to investigate the pneumatic-electric Converter, which includes a jet pneumatic and differential strain gauges, which allows to obtain an analog electrical signal at the output. The article describes the design and principle of operation pneumoenteritis Converter to control the diameter of the part. Pneumotensometric Converter converts the change in the diameter of the part in the movement of the nozzle, which causes a change in the force of the air jet on the beam, its deformation and, accordingly, a change in the resistance of he strain gauge. An expression describing the stoic characteristic of the transducer and allowing to determine the force of the air jet impact on the load cell from the gap between the nozzle and the beam, the air pressure and the nozzle diameter is given. The results of modeling the static characteristics of the Converter at different combinations of design parameters are given, the values of straight sections of characteristics and sensitivity are determined, their comparative evaluation is given.

Verification and Comparison of Two Tribodiagnostic Methods for Analyzing of the Worn out Oils in Service

2015 ◽  
Vol 669 ◽  
pp. 426-433
Author(s):  
Janka Mihalčová
Keyword(s):  
Internal Control ◽  
Internal Standard ◽  
Statistical Processing ◽  
Test Sample ◽  
Quality Parameters ◽  
Acid Number ◽  
Total Acid ◽  
Preparation Methods ◽  
Measurement Results ◽  
Processing Of Measurement Results

The paper deals with comparison and verification of two standard methods for measuring the total acid number of used oils. This is a tribodiagnostic method used to the detection of important quality parameters of oils in service, which determine the degradation of oil filling. This significantly affects the life cycle of oil and, consequently, the lubrication system. The methods for measuring aircraft motor and insulating oils are compared. The method procedures, preparation titration solutions, solvents, through the use of the test sample and electrodes to the accuracy of the measurement on the sample oils are compared. It compares the process of preparation methods of titrating solution, solvents, samples and fills through the use of electrodes to the accuracy of the measurement on the sample oils. From measurements of the samples accuracy and validity of both methods using statistical processing of measurement results is calculated. It utilizes internal control of measurements by means of an internal standard and also inter-laboratory comparison of measurement results.

Computer for statistical processing of measurement results

1971 ◽  
Vol 14 (6) ◽  
pp. 906-909
Author(s):  
V. I. Teverovskii ◽  
A. A. Ivlev ◽  
Yu. N. Snegireva
Keyword(s):  
Statistical Processing ◽  
Measurement Results ◽  
Processing Of Measurement Results

scholarly journals Processing of Measurement Results for Mechanical Values by Intellectual Equipment Systems (Uncertainty Conditions)

2019 ◽  
pp. 34-38
Author(s):  
V. Kvasnikov ◽  
A. Perederko ◽  
L. Kuzmich ◽  
V. Kotetunov
Keyword(s):  
Present Stage ◽  
Specific Content ◽  
Accuracy Of Measurements ◽  
Measurement Results ◽  
Systematic Effects ◽  
Processing Accuracy ◽  
Processing Of Measurement Results ◽  
The Cost ◽  
Rapid Processing ◽  
Selection Of

This article is devoted to the measurement of mechanical quantities. The proposed methods are directed to the mechanical values of the intellectual devices of the system (in conditions of uncertainty). At the present stage of the development of intellectual systems, the issue of creating methods for rapid processing of the obtained results, determining the accuracy of their measurement in real time, in particular in solving management problems and making decisions under uncertainty, remains an issue. The result of the measurement of mechanical quantities, in particular the cost of thermal energy by intelligent instrumentation systems (IPS), is complete, provided that it is accompanied by an estimate of its accuracy [1]. The processing accuracy of the measurement results depends on the type of measurement, the number of experimental data, the accuracy requirements of the measurement, and so on. Only during direct one-time measurements the result of the study may be the result of the measurement (provided that the systematic errors of measurement are not corrected). In other measurements, processing can be done using standardized techniques (eg statistical methods), or require the creation of special algorithms. In general, the processing involves the following steps [2, 3, 4]: preliminary analysis of the results of observations (primary measurements), their systematization of the rejection of obviously false results; Correction of the influence of systematic effects (study of mea­surement conditions, calculation and amendment); analysis of the effects of random effects, testing hypotheses about their distribution, selection of the best estimates of the required values; evaluation of the accuracy characteristics of a numerical algorithm, its stability; execution of calculations in accordance with the chosen algorithm; analysis of the results; submission of measurement results and characteristics of their accuracy in the appropriate form. Each type of measurement has its own characteristics and therefore the specific content of these operations of processing the results of a particular type of measurement has certain differences. The approaches to processing the results of measurement of mechanical quantities by intelligent instrumental systems, in particular estimating the accuracy of measurements under uncertainty, are substantiated.

scholarly journals Method for determining the spatial position of the center of gravity of machines

2019 ◽  
pp. 71-82
Author(s):  
I. A. Blinov
Keyword(s):  
Mathematical Model ◽  
Computer Model ◽  
Center Of Gravity ◽  
Spatial Position ◽  
Coordinate Method ◽  
The Core ◽  
Measurement Results ◽  
Minimum Number ◽  
Mathematical Processing ◽  
Processing Of Measurement Results

Having analyzed traditional methods for determining the coordinates of the center of gravity of machines, we developed a three-coordinate method using the simplest and most affordable means of hanging products with a crane beam. The method differs from analogues in the minimum number of weighings when there are no force-measuring means as a component of the measuring circuit. We introduce a mathematical model, which is the core of the method, and a computer model which minimizes the complexity of mathematical processing of measurement results

scholarly journals MONITORING, MODELING AND BEHAVIOR ANALYSIS OF STRUCTURES

2021 ◽  
Vol 26 (1) ◽  
pp. 25-37
Author(s):  
Sergey G. Mogilny ◽  
◽  
Andrei A. Sholomitskii ◽  
Elena K. Lagutina ◽  
Ekaterina L. Soboleva ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Measurement Data ◽  
Statistical Processing ◽  
Technical Condition ◽  
Literary Sources ◽  
Measurement Results ◽  
Hidden Patterns ◽  
Processing Of Measurement Results ◽  
And Behavior ◽  
Geometric Elements

Information technology and modeling are becoming more widely used, mainly in the design and operation of buildings and structures, and in most cases this is enough for trouble-free operation. Nev-ertheless, there is a category of buildings for which the monitoring of the technical condition should be an integral part of the construction and operation. Unfortunately, the development of these technolo-gies in the Russian Federation is not at level, sufficient for answering questions about the behavior of objects under changing environmental conditions and revealing hidden patterns in monitoring data. Based on analysis of literary sources, the authors reviewed various methods for identifying hidden patterns in geodetic measurement data when monitoring buildings and structures. It is noted that mod-ern analysis methods are based on statistical processing of measurement results and on statistical fore-casting method. However, there are attempts to apply models that take into account object’s design features and temperature regime. This type includes two proposed models, which are used to model three-dimensional coordinates of strain marks in the 3D model and only elevations of marks in the 1–Z model. The article presents the rationale for the simulated geometric elements and properties of the object. The solution of the equations of both models and the analysis of the results and parameters of the model for measurement epochs are shown. The simulation is shown on the example of a real ob-ject, which was monitored by the authors in 2015–2016.The authors believe that the monitoring of large-span structures and the search for patterns of their behavior should be an integral part of the in-formation system for such structures.

scholarly journals Simulation Modeling of the Accuracy of Solid-State Wave Gyroscope Characterization with Tuning of Computational Algorithms to Signal Periodicity

2021 ◽  
Vol 19 (3) ◽  
pp. 12-24
Author(s):  
R. I. Mingazov ◽  
◽  
K. V. Shishakov ◽  
Keyword(s):  
Standing Waves ◽  
Computational Algorithms ◽  
Special Choice ◽  
Measuring Device ◽  
Measurement Results ◽  
Processing Of Measurement Results ◽  
Digital Demodulation ◽  
Identification Techniques ◽  
Interval Lengths ◽  
Source Signals

The setting of computational algorithms for four methods of identification of wave characteristics in the free run-out mode of standing waves in the resonator of the integrative solid wave gyroscope on observations of signals of its measuring device at time intervals that are multiples of resonator oscillation is described. In the first roughest method, measurement results are processed without taking into account the influence of the quadrature wave. It is convenient for forming initial approximations in the tasks of clarifying optimization of identification functionality in other methods. In the second method, the refined processing of measurement results is carried out taking into account the phase shift of the signals of the measuring device. In the third method, in order to provide better physical visibility and to process the results of measurements, a virtual transition to mobile axes of standing waves is introduced. In the fourth method, measurement results are processed using numerical digital demodulation procedures. Comparisons have been made for the accuracy of these identification techniques by simulation methods for theoretically set source signals. This made it possible to directly compare the original and identified characteristics of wave processes: the amplitude of the main and square standing waves, the angle of the main standing wave and its frequency. The results are presented in the absence and presence of noise in the measuring signals. The results show the specifics of the practical application of different techniques for real samples of gyroscopes. For short identification intervals, they require a special choice of interval lengths equal to the final number of resonator oscillations. With the lengthening of such intervals, this requirement for the length of the interval is weakened.

scholarly journals INFORMATION-MEASURING SYSTEM OF STRENGTH TESTS AT THE STAGE OF STAND TESTS OF PRODUCTS FROM HIGH-ENERGY MATERIALS

2021 ◽  
pp. 14-18
Author(s):  
А.В. Курбатов ◽  
Д.А. Кондрашов ◽  
И.А. Драничников ◽  
Ф.А. Попов
Keyword(s):  
High Energy ◽  
Fine Tuning ◽  
Measuring System ◽  
Main Task ◽  
Energy Materials ◽  
Bench Tests ◽  
High Energy Materials ◽  
Measurement Results ◽  
Strength Tests ◽  
Processing Of Measurement Results

Рассматривается разработанная на АО «ФНПЦ «Алтай» информационно-измерительная система (ИИС), предназначенная для автоматизации сбора и обработки результатов измерений при стендовых испытаниях изделий из высокоэнергетических материалов. Ее основной задачей является многоканальный сбор данных о результатах стендовых испытаний, обработка, документирование и хранение результатов измерений. Показано, что в процессе разработки, производства, доводки и серийного выпуска изделий из высокоэнергетических материалов особо важными являются прочностные испытания, позволяющие оценить работоспособность и технические характеристики, а также сроки хранения и эксплуатации. The paper considers the information and measuring system (IMS) developed at the Altai Federal Research and Production Center JSC, designed to automate the collection and processing of measurement results during bench tests of products made of high-energymaterials. Its main task is multichannel collection of data on the results of bench tests, processing, documentation and storage of measurement results. It is shown that in the process of development, production, fine-tuning and serial production of products made of high-energy materials, strength tests are especially important, which make it possible to assess the performance and technical characteristics, as well as the storage and operation periods.

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