scholarly journals Automated Control System of Physical and Accuracy Parameters of Sensitive Elements of Solid-State Wave Gyroscopes

2021 ◽  
Vol 19 (3) ◽  
pp. 35-46
Author(s):  
F. I. Spiridonov ◽  
◽  
K. V. Shishakov ◽  
Keyword(s):  
Solid State ◽  
Production Control ◽  
General Characteristic ◽  
Production Cycle ◽  
Physical Parameters ◽  
Automated Control ◽  
Control Structures ◽  
State Wave ◽  
Trial Test ◽  
End To End

The paper describes the first comprehensive version of the developed software and hardware stand of automation of end-to-end production control of physical parameters of sensitive elements of solid-state wave gyroscopes to enhance the accuracy characteristics of their output signals. The general characteristic of the system of control of physical and accuracy parameters of sensitive elements in production is given. To do this, the process of making a sensitive element is summarized and procedures for determining its physical and accuracy parameters are given. The focus is on creating "hrgCheck" software for the system of automated physical and accuracy parameters monitoring. For this purpose, a diagram of the state of the system, program algorithms, data collection, calculation of physical parameters, calculation of accuracy parameters, software and measurement control structures as well as the program's user interface are given. As a demonstration example of the performance of the software, a trial test of the effectiveness of use in the control of physical and accuracy parameters of sensitive elements of solid-state wave gyroscopes was carried out. For one of the sensors, 37 standing wave runs were measured, which took 2 hours and 15 minutes. The dependence of identification results on the initial measurement conditions is shown, which requires an excessive series of experiments. The resulting data on the physical and precise parameters of sensitive elements show the feasibility of introducing the developed software into the production cycle of end-to-end control of the gyroscopes produced. This will reduce the labor and cost of manufacturing, improve product accuracy and reduce the possibility of production faults. The inherent opportunities for improvement, development and expansion allow us to consider it in the general trend of updating the technologies of production processes for the manufacture of high-precision solid-state wave gyroscopes.

scholarly journals Comparison of methods for determining the physical parameters of the resonator of a solid-state wave gyroscope

2020 ◽  
Author(s):  
Ramis I. Mingazov ◽  
◽  
Fedor I. Spiridonov ◽  
Ivan A. Vikhlyaev ◽  
Konstantin V. Shishakov
Keyword(s):  
Solid State ◽  
Quartz Resonator ◽  
Physical Parameters ◽  
Dynamic Parameters ◽  
State Wave ◽  
Algorithmic Support ◽  
Hemispherical Resonator ◽  
Technological Stage ◽  
And Control ◽  
The Relationship

The article deals with the problem of identifying the dynamic parameters of the resonator of a solid-state wave gyroscope, based on the signals measured when the sensor is operating in free-run mode. The search for the dynamic parameters of a solid-state wave gyroscope is one of the most important operations of the quality control of its production. The paper describes two methods for determining the physical parameters of a quartz resonator of a solid-state wave gyroscope. For each method, the mathematical substantiation of the relationship between the dynamic behavior of the resonator and its physical parameters is given. On the basis of each of the techniques, an algorithmic support for the extraction of the physical parameters of the resonator of a solid-state wave gyroscope is presented. The research of the accuracy of calculating the visual parameters by the described methods on experimental data of a resonator with known parameters has been carried out. The results obtained show the practical applicability of the described methods. An example of using the methods described in the work is the identification and control of the dynamic parameters of a quartz hemispherical resonator of a solid-state wave gyroscope at the technological stage of “balancing”.

End-to-end system test for solid-state microdosemeters

2010 ◽  
Vol 140 (4) ◽  
pp. 309-318 ◽  
Author(s):  
V. L. Pisacane ◽  
Q. E. Dolecek ◽  
H. Malak ◽  
J. F. Dicello
Keyword(s):  
Solid State ◽  
End To End

Digitale Produktion und intelligente Steuerung/Digital Production and Intelligent Production Control – Integrating digital and real-world production for adaptive and automated control

2020 ◽  
Vol 110 (04) ◽  
pp. 255-260
Author(s):  
Marvin Carl May ◽  
Andreas Kuhnle ◽  
Gisela Lanza
Keyword(s):  
Production Control ◽  
Production Systems ◽  
Industrie 4.0 ◽  
World Production ◽  
Production Planning And Control ◽  
Automated Control ◽  
Planning And Control ◽  
Digital Production ◽  
Digitale Modelle ◽  
And Control

Im Rahmen der stufenweisen Umsetzung von Industrie 4.0 erreicht die Vernetzung und Digitalisierung die gesamte Produktion. Den physischen Produktionsprozess nicht nur cyber-physisch zu begleiten, sondern durch eine virtuelle, digitale Kopie zu erfassen und zu optimieren, stellt ein enormes Potenzial für die Produktionssystemplanung und -steuerung dar. Zudem erlauben digitale Modelle die Anwendung intelligenter Produktionssteuerungsverfahren und leisten damit einen Beitrag zur Verbreitung optimierender adaptiver Systeme.   In the wake of implementing Industrie 4.0 both integration and digitalization affect the entire production. Physical production systems offer enormous potential for production planning and control through virtual, digital copies and their optimization, well beyond purely cyber-physical production system extensions. Furthermore, digital models enable the application of intelligent production control and hence contribute to the dissemination of adaptively optimizing systems.

scholarly journals Form perturbation-produced frequency splitting of solid-state wave gyroscope ring resonator

2012 ◽  
Author(s):  
О.С. Нарайкин ◽  
◽  
Ф.Д. Сорокин ◽  
С.А. Козубняк ◽  
◽  
...  
Keyword(s):  
Solid State ◽  
Ring Resonator ◽  
Frequency Splitting ◽  
State Wave

scholarly journals MODELLING OF MULTICRITERIAL SYSTEM OF METALWORKING CNC-EQUIPMENT’S CONTROL WORK

2021 ◽  
pp. 52-60
Author(s):  
Igor Lupyna ◽  
Tatiana Klotchko ◽  
Volodymyr Skytsiouk
Keyword(s):  
Control Systems ◽  
Single Channel ◽  
Automated System ◽  
Physical Parameters ◽  
Specific Information ◽  
Automated Control ◽  
Industrial Processing ◽  
Technological Processes ◽  
Automation Systems ◽  
Control Work

Currently, the means of measuring and converting information signals from equipment are widely used in industrial processing systems. For the most part, modern systems of mechanical processing of materials use mainly single-channel systems that work on information signals that identify the physical parameters of the technological process. Such a narrow specialization of monitoring one of the parameters usually reduces the reliability of the results obtained and, as a consequence, the reliability of the entire control system. The task of the work is to determine the possibilities of creating the foundations of the automated system on the basis of multi-channel information recording devices from processing equipment and possible approaches to the choice of criteria for the analysis of fluid information. As a result of the given analysis of a condition of branch and its modern transformations, the module of system for data collection on process (from a set of sensors) is offered for development, with a possibility of their further transformation on certain dependence, storage, transfer, and a possibility of signaling of certain events, for example, faults, for use in production automation systems and for equipment not included in the systems. At the same time, the multi-channel device of the sensor system provides opportunities to determine the full amount of information about the process. The basic modern means of control of work of technological processing CNC-equipment applied in the industry are investigated. The most perspective directions of development of multicriteria methods and automated control systems of technological equipment in the part of creation of complex sensors are determined. These sensory complexes register signals that are different in physical phenomena. The main approaches to the creation of control systems provide opportunities to build a theoretical basis given the logic of the system of obtaining specific information data in the automation of technological processes. Promising research at creating algorithms for such complex systems of quality control and diagnostics of technological processes can be aimed.

scholarly journals Optimization of ligninolytic enzymes production from Aspergillus terreus SG-777 by solid state fermentation

2016 ◽  
Vol 40 (1) ◽  
pp. 116-124 ◽  
Author(s):  
Sahar Ghazi Imran
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Aspergillus Terreus ◽  
Production Condition ◽  
C:N Ratio ◽  
Ligninolytic Enzymes ◽  
Inoculum Size ◽  
Physical Parameters ◽  
Fungal Culture ◽  
Lignocellulosic Substrate

        The present study aimed at producing the ligninolytic enzymes extracts by growing single and co-cultures of an indigenous Aspergillus terreus SG-777 utilizing solid state fermentation (SSF) using lignocellulosic substrates. A further goal was to optimize the production condition of ligninolytic enzymes by selected fungal culture and lignocellulosic substrate. The production process was further improved by optimizing a number of physical parameters such as (substrate, incubation time, moisture level, inoculum size, pH, and temperature). By optimization of different parameters, the maximum specific activities of enzymes synthesized by Aspergillus terreus SG-777 were observed as 0.83 U/mg for manganese peroxidase (MnP), 18.03 U/mg for lignin peroxidase (LiP) and 0.91 U/mg for laccase,  when using the banana stalks as substrate after 8 days incubation at рH 5.5 and 35°C temperature with 1×105 spore/ml ml inoculum size, 1:5 w/v moisture content, 20:1 C:N ratio (glucose and ammonium tartarate as carbon and nitrogen supplements), 1ml of 1mM MnSO4 as mediator, and 1ml of 1mM MgSO4.7H2O2.

scholarly journals A Solid-State Wave Gyro with Independent Channels for Measuring the Angle and Angular Velocity

2020 ◽  
Vol 18 (4) ◽  
pp. 21
Author(s):  
R. V. Melnikov ◽  
G. A. Trutnev ◽  
A. V. Krivov ◽  
I. R. Kadyrov
Keyword(s):  
Solid State ◽  
Angular Velocity ◽  
State Wave

В работе рассматривается новый перспективный принцип работы твердотельного волнового гироскопа (ТВГ) – одновременная работа прибора в режимах свободных и вынужденных колебаний на независимых формах колебаний. Режим свободных колебаний реализует датчик угла (ДУ), режим вынужденных колебаний формирует датчик угловой скорости (ДУС). Режим ДУ и ДУС являются независимыми каналами инерциальной информации. Режим ДУС реализует измерения мгновенной угловой скорости, но имеет большие погрешности вычисления угла поворота на длинном интервале времени при работе прибора в условиях вибраций и ударов. Режим ДУ реализует устойчивое физическое интегрирование угловой скорости (эффект Брайана) в любых условиях внешних механических воздействий на длинных интервалах времени, но имеет большие погрешности в определении мгновенной угловой скорости. Достоинством ДУ является широкий динамический диапазон, датчик работает в диапазоне угловых скоростей до нескольких тысяч градусов в секунду, с угловыми ускорениями до нескольких десятков тысяч градусов в секунду в квадрате. Динамический диапазон режима ДУС существенно меньше. Режим ТВГ с одновременной независимой работой в режимах ДУ и ДУС расширяет сферу применения ТВГ, одновременно повышает надежность, точность измерений, а также увеличивает устойчивость к внешним возмущениям. В области навигации и управления движением актуальным направлением является разработка прецизионных систем, обладающих высокой точностью определения мгновенной угловой скорости, широким динамическим диапазоном и устойчивостью интегрирования угловой скорости на длительных временных промежутках. Одна из попыток справиться с одновременными требованиями к точности и робастности – это разработка двухрежимного ТВГ, переключающего режимы в зависимости от требований. Существенным недостатком двухрежимного переключающегося ТВГ является наличие переходных процессов при переключении режимов, во время которого не происходит адекватного  измерения вращения. Также отсутствуют четкие критерии переключения режимов. Предлагается принципиально другой подход: разработка ТВГ, в котором два режима совмещены одновременно. Разделение режимов предлагается осуществлять не по времени, а по частоте. В резонаторе формируется не менее двух форм колебаний на своих резонансных частотах. Колебания по одной из форм используются для режима ДУ, другая форма используется для режима ДУС. Тем самым достигается формирование двух независимых каналов и получение преимуществ обоих режимов.

scholarly journals Lovastatin Production from Cunninghamella blakesleeana under Solid State Fermentation

2021 ◽  
Author(s):  
Janani Balraj ◽  
Thandeeswaran Murugesan ◽  
Vidhya Kalieswaran ◽  
Karunyadevi Jairaman ◽  
Devippriya Esakkimuthu ◽  
...  
Keyword(s):  
Solid State ◽  
Incubation Period ◽  
Solid State Fermentation ◽  
Carbon Sources ◽  
Experimental Studies ◽  
Nitrogen Sources ◽  
Medium Composition ◽  
Critical Parameters ◽  
Physical Parameters ◽  
Cunninghamella Blakesleeana

Abstract Our earlier paper had established the fact that new soil fungi known as Cunninghamella blakesleeana is potent enough to produce lovastatin significantly. At present, there are no reports on the media optimization for the lovastatin production. Hence, the objective is to optimize the fermentation conditions for lovastatin production by Cunninghamella blakesleeana under Solid State fermentation (SSF) condition through screening the critical factors by one factor at a time and then, optimize the factors selected from screening using statistical approaches. SSF was carried using the pure culture of Cunninghamella blakesleeana KP780148.1 with wheat bran as substrate. Initial screening was performed for physical parameters, carbon sources and nitrogen sources and then optimized the selected parameters through PBD and BBD. Screening result indicated the optimum values of the analysed parameter for the maximal production of lovastatin by Cunninghamella blakesleeana were selected. Out of the nine factors MgSO4, (NH4)2SO4, pH and Incubation period were found to influence the lovastatin production significantly after PBD. The optimal levels of these variables and the effect of their mutual interactions on lovastatin production were determined using BBD surface design. The optimum medium composition was found to be MgSO4(0.2 g/L), (NH4)2 SO4 (12.5 g/L), pH (6) and Incubation period (7 days). Experimental studies showed a yield of 7.39 mg/g at the above optimized conditions which were observed to be very nearby to the predicted value and hence the model was successfully validated. Hence, this is the first report on the optimization of critical parameters for lovastatin production by Cunninghamella blakesleeana.

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