A Mathematical Model of the Thermo-Anemometric Flowmeter

Korobiichuk, Igor; Безвесільна, Олена Миколаївна; (Ilchenko), Андрій Володимирович Ільченко; Shadura, Valentina; Nowicki, Michał; Szewczyk, Roman

doi:10.3390/s150922899

Cited by 37 publications

(8 citation statements)

References 7 publications

(8 reference statements)

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“…The step was not ideal, therefore it has been registered by means of hot wire anemometer [19] and later approximated by a function in form of:Q(t)=QSS(1−e−90t) where Q SS is the flow rate in steady state. This form of excitation signal was used during the solution of the Equation (21).…”

Section: Methodsmentioning

confidence: 99%

Minimization of the Settling Time of Variable Area Flowmeters

Turkowski

Szczecki

Szudarek

2019

Sensors

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In the article a differential equation describing transient behavior of variable area (VA) meters has been developed and validated experimentally for air as a measured fluid and for two float shapes—plumb bob and sphere. A modified version of simplex algorithm adapted for nonlinear constraint optimization problems was applied to minimize the settling time of VA meters in two cases. In the first case both the float and tube geometry were altered. In the second case only the float geometry was modified. The second case has been validated experimentally. The theory and experiment is in reasonable agreement (under 5% of full scale), which is satisfactory for the purposes of optimization of VA flowmeters dynamic performance. Analytical model of VA flowmeter has been proven to be a proper tool for optimization. Settling times obtained during the optimization process were several times shorter than these of commercially manufactured instruments. Overshoot has not exceeded the assumed value of 3%.

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Section: Methodsmentioning

confidence: 99%

Minimization of the Settling Time of Variable Area Flowmeters

Turkowski

Szczecki

Szudarek

2019

Sensors

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“…Considering the properties of individual thermo-anemometer configurations, a CTA was selected for use in the described device. Detailed mathematical models of thermoanemometric flowmeters can be found in the work of Korobiichuk et al [ 47 ]. One of the properties of this solution is, as mentioned earlier, the protection against overheating/burning of the sensor wire in the absence of airflow.…”

Section: Data Acquisition Requirementsmentioning

confidence: 99%

Requirements for Supporting Diagnostic Equipment of Respiration Process in Humans

Nitkiewicz

Barański

Galewski

et al. 2021

Sensors

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There is abundant worldwide research conducted on the subject of the methods of human respiration process examination. However, many of these studies describe methods and present the results while often lacking insight into the hardware and software aspects of the devices used during the research. This paper’s goal is to present new equipment for assessing the parameters of human respiration, which can be easily adopted for daily diagnosis. This work deals with the issue of developing the correct method of obtaining measurement data. The requirements of the acquisition parameters are clearly pointed out and examples of the medical applications of the described device are shown. Statistical analysis of acquired signals proving its usability is also presented. In the examples of selected diseases of the Upper Respiratory Tract (URT), the advantages of the developed apparatus for supporting the diagnosis of URT patency have been proven.

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“…The modem means of the angular velocity measurement are also offered by automobile manufacturers, especially for ABS system [15]. Figure 1 shows the example o f such tachometer, where 1 -is the permanent magnet, 2 -is the trunk; 3 -is the winding; 4 -is the iron circuit; 5 -is the pulse drive.…”

Section: The Current State Of the Problemmentioning

confidence: 99%

Torque and Capacity Measurement in Rotating Transmission

Грабар

Korobiichuk

Petruk

2016

Recent Advances in Systems, Control and Information Technology

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Ivan G rabar1, Ig o r K orobiichuk2(l2l>, and O leg Petruk2 1 Zhytomyr National University of Agriculture and Ecology, Zhytomyr, Ukraine iv a n -g r a b a r @ u k r . n e t 2 Industrial Research Institute for Automation and Measurements PIAP, Warsaw, Poland { i k o r o b i i c h u k , o p e t r u k } @ p i a p . p i A bstract, The task o f measuring, monitoring and recording of the torque, mechanical stress and capacity is relevant for most transmissions of die process and transport machines. The importance o f this problem is increased by an order in terms o f unsteady loads (random, impulsive, alternating, etc.). The disad vantage o f its correct solution by experimental methods is substantially limited by the need for expensive and unreliable, environmentally dangerous current collectors. To measure the dynamic and kinematic parameters of the rotating transmission by modem information computer technologies, we propose equipping the mechanical transmission with two additional half-couplings with point magnets fixed thereon, the scope o f each includes one or more Hall sensors. The application o f the developed technique allows determining the torsional rigidity of the transmission experimentally, and allows recording the actual torque and capacity per turn (or a part o f the turn) o f the transmission of a process or transport machine and record the same online in the computer electronic memory. This, in turn, allows an online assessment of the residual transmission resource, machine operation per shift and generate its operation history, which provides an invaluable information both to the machine devel oper and owner.

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A Mathematical Model of the Thermo-Anemometric Flowmeter

Cited by 37 publications

References 7 publications

Minimization of the Settling Time of Variable Area Flowmeters

Minimization of the Settling Time of Variable Area Flowmeters

Requirements for Supporting Diagnostic Equipment of Respiration Process in Humans

Torque and Capacity Measurement in Rotating Transmission

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