Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit
There is a problem of studying the processes that occur during the transition of a liquid to a supercritical state and in the process of studying and conducting experiments. There is also a problem of controlling the operation of the electromagnetic device system. Since mechanical, electronic, and o...
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irk-123456789-1958772023-12-08T12:00:12Z Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit Boriskin, V.M. Churikov, V.V. Momot, V.O. Applications and technologies There is a problem of studying the processes that occur during the transition of a liquid to a supercritical state and in the process of studying and conducting experiments. There is also a problem of controlling the operation of the electromagnetic device system. Since mechanical, electronic, and other control methods are complicated by the conditions (extremely high pressure, high temperature, location of a part that needs control inside a sealed metal system and is under radiation), an acoustic research method was chosen. As a result of the development, a device based on STM32F407VGT6, DP83848, MAX9814 was created that allows you to receive acoustic data and transmit them over considerable distances using an Ethernet network. Also, applications were developed that enable visualization, storage and processing of acoustic data: a TCP server for data exchange, an operator application that helps to visually control the operation of the magnetic drive and save acoustic data in CSV format, an application for visualization and processing of stored data using methods of statistical and spectral analysis. Постає проблема вивчення процесів, що відбуваються під час переходу рідини у надкритичний стан та при проведенні експериментів. Також існує проблема контролю роботи системи електромагнітного пристрою. Так як механічний, електронний та інші методи контролю ускладнені за умовами (надвисокий тиск, висока температура, знаходження частини, що потребує контролю всередині герметичної металевої системи та знаходиться в умовах опромінення), було обрано акустичний метод дослідження. В результаті розробки було створено пристрій на базі STM32F407VGT6, DP83848, MAX9814, що дозволяє отримувати акустичні дані та передавати їх на значні відстані за допомогою мережі Ethernet. Також були розроблені додатки, що надають змогу візуалізувати, зберігати та опрацьовувати акустичні дані: TCP-сервер для обміну даними, додаток оператора, що допомагає візуально контролювати роботу магнітного приводу та зберігати акустичні дані у форматі CSV, додаток для візуалізації та опрацювання збережених даних з використанням методів статистичного та спектрального аналізів. 2022 Article Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit / V.M. Boriskin, V.V. Churikov, V.O. Momot // Problems of Atomic Science and Technology. — 2022. — № 5. — С. 141-145. — Бібліогр.: 5 назв. — англ. 1562-6016 PACS: 85.40.-e; 89.20.Bb DOI: https://doi.org/10.46813/2022-141-141 http://dspace.nbuv.gov.ua/handle/123456789/195877 en Problems of Atomic Science and Technology Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
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Applications and technologies Applications and technologies |
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Applications and technologies Applications and technologies Boriskin, V.M. Churikov, V.V. Momot, V.O. Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit Problems of Atomic Science and Technology |
| description |
There is a problem of studying the processes that occur during the transition of a liquid to a supercritical state and in the process of studying and conducting experiments. There is also a problem of controlling the operation of the electromagnetic device system. Since mechanical, electronic, and other control methods are complicated by the conditions (extremely high pressure, high temperature, location of a part that needs control inside a sealed metal system and is under radiation), an acoustic research method was chosen. As a result of the development, a device based on STM32F407VGT6, DP83848, MAX9814 was created that allows you to receive acoustic data and transmit them over considerable distances using an Ethernet network. Also, applications were developed that enable visualization, storage and processing of acoustic data: a TCP server for data exchange, an operator application that helps to visually control the operation of the magnetic drive and save acoustic data in CSV format, an application for visualization and processing of stored data using methods of statistical and spectral analysis. |
| format |
Article |
| author |
Boriskin, V.M. Churikov, V.V. Momot, V.O. |
| author_facet |
Boriskin, V.M. Churikov, V.V. Momot, V.O. |
| author_sort |
Boriskin, V.M. |
| title |
Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit |
| title_short |
Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit |
| title_full |
Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit |
| title_fullStr |
Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit |
| title_full_unstemmed |
Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit |
| title_sort |
development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit |
| publisher |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| publishDate |
2022 |
| topic_facet |
Applications and technologies |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/195877 |
| citation_txt |
Development of a device and software complex for acoustic diagnostics of processes occurring in the supercritical state of a liquid and monitoring the work of a magnetic drive unit / V.M. Boriskin, V.V. Churikov, V.O. Momot // Problems of Atomic Science and Technology. — 2022. — № 5. — С. 141-145. — Бібліогр.: 5 назв. — англ. |
| series |
Problems of Atomic Science and Technology |
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| fulltext |
ISSN 1562-6016. Problems of Atomic Science and Technology. 2022. №5(141) 141
APPLICATIONS AND TECHNOLOGIES
https://doi.org/10.46813/2022-141-141
DEVELOPMENT OF A DEVICE AND SOFTWARE COMPLEX FOR
ACOUSTIC DIAGNOSTICS OF PROCESSES OCCURRING IN THE
SUPERCRITICAL STATE OF A LIQUID AND MONITORING THE
WORK OF A MAGNETIC DRIVE UNIT
V.M. Boriskin, V.V. Churikov, V.O. Momot
National Science Center “Kharkov Institute of Physics and Technology”, Kharkiv, Ukraine
E-mail: churikov.v@kipt.kharkov.ua
There is a problem of studying the processes that occur during the transition of a liquid to a supercritical state
and in the process of studying and conducting experiments. There is also a problem of controlling the operation of
the electromagnetic device system. Since mechanical, electronic, and other control methods are complicated by the
conditions (extremely high pressure, high temperature, location of a part that needs control inside a sealed metal
system and is under radiation), an acoustic research method was chosen. As a result of the development, a device
based on STM32F407VGT6, DP83848, MAX9814 was created that allows you to receive acoustic data and transmit
them over considerable distances using an Ethernet network. Also, applications were developed that enable
visualization, storage and processing of acoustic data: a TCP server for data exchange, an operator application that
helps to visually control the operation of the magnetic drive and save acoustic data in CSV format, an application for
visualization and processing of stored data using methods of statistical and spectral analysis.
PACS: 85.40.-e; 89.20.Bb
INTRODUCTION
Currently, there is a problem of choosing a coolant
for 4th generation reactors, one of the promising ways
of development is the choice of a liquid (water) in a
supercritical state, unfortunately, this substance has not
been studied enough, so the scientific community faces
the task of studying water in a supercritical state, as well
as all related processes. In this case, a supercritical
water convection loop was developed for study, in
which the chemical and physical influence of the
potential coolant on samples of various substances will
be investigated.
There is also the problem of studying the processes
that occur during the transition of a liquid to a
supercritical state and in the process of studying and
conducting experiments. There is also a problem of
monitoring the operation of the magnetic drive unit. The
article considers the possibility of acoustic diagnostics
of a supercritical convection water loop [1, 2] during
irradiation with electrons and gamma quanta.
1. STATEMENT OF REQUIREMENTS
In order to meet the needs of the conditions for
conducting measurements, additional conditions were
also taken into account:
large number of users;
the distance of the observers from the place of
the experiment is more then 100 m;
the possibility of recording raw data (for
further analysis);
the need to obtain the spectrum of the received
signal.
Thus, it is necessary to get a device that will receive
acoustic data at a long distance and transmit it to the
user for further analysis, and a software complex that
will receive data, store it, distribute it and visualize the
necessary indicators.
2. GENERAL DESCRIPTION OF THE
DEVICE
Ethernet network was chosen as the main method of
communication between devices, as it allows data
transmission at distances greater than 100 m and has
sufficient bandwidth to transmit the required amount of
data.
The decision was made to choose STM32F4-
Discovery as the basis for the device, since the
microcontroller on this board has a sufficient amount of
memory, a fairly high frequency of operation
(168 MHz), supports the RMII interface, which allows
the use of Ethernet network adapters, and is
distinguished by high-precision 12-bit ADC, which
allows you to distinguish the signal level with an
accuracy of up to 8 mV. The next step was the selection
of the microphone module: the MAX9814 has proven
itself as a quality microphone module, distinguished by
ease of connection and sound registering quality. To
work with an Ethernet network was the DP83848
module is selected. The power source is a mobile phone
charger that supplies 5 V and 1 A current output.
As a server, you need a computer with the following
minimum possible characteristics:
OS: Windows 7 Professional x64 or Windows
10 Professional x64;
CPU: dual-core, 2.8 GHz, or better;
RAM: DDR3 8 GB or better;
Free space: 10 MB or more.
3. SCHEME OF INTERACTION
The following is chosen as the most appropriate
scheme of interaction:
1. The microphone shown in Fig. 1, is connected to
the supercritical water convection loop using a metal
mailto:churikov.v@kipt.kharkov.ua
142 ISSN 1562-6016. Problems of Atomic Science and Technology. 2022. №5(141)
rod in order to avoid overheating and ensure better
transmission of the acoustic signal.
Fig. 1. MAX9814 module
This module is responsible for converting acoustic
waves into electromagnetic waves and has the following
characteristics:
Supply voltage: 2.7…5.5 V at a current of
30 mA;
Output: 2Vpp at 1.25 V offset;
Frequency response: 20 Hz…20 kHz;
Programmable attack and decay ratio;
Temperature range -40…+85 °C.
2. The microphone is connected using a twisted pair
to the STM32F4-Discovery microcontroller module
represented in Fig. 2. This module is responsible for
receiving an analog signal, converting it to a digital one,
accumulating data and transferring it to the server
application via the Ethernet network. The maximum
clock frequency is 168 MHz, the polling frequency of
the ADC is 32768 Hz. The supply voltage is 5 V with a
current of 300 mA.
Fig. 2. STM32F4-Discovery module
3. The microcontroller module transmits the
recorded data in the form of a TCP packet to the
Ethernet adapter board DP83848 shown in Fig. 3 for
further data transfer to the server via the Ethernet
network.
Fig. 3. DP83848 module
This module is designed for communication of a
microcontroller module with an Ethernet network, has
the following characteristics:
Network support: 10/100 Mbit;
Standard: 802.3u MII/RMII;
Supply voltage: 3.3 V;
Consumed power: < 270 mW.
4. The server accepting incoming connections,
receives information packets and distributes the
accumulated information to all clients, closes the
connections.
5. The client who received the information saves the
received information in CSV format files at certain
intervals. Also, the client performs transformation on
the data using the FFT algorithm and displays the
received signal spectrum or raw data on the screen. The
overall scheme of interaction shown in Fig. 4.
Fig. 4. Device interaction scheme
In this way, the fulfillment of all conditions and
tasks is ensured. Users can receive acoustic data at a
considerable distance, analyze the operation of the
magnetic drive unit using acoustic signal spectrum data.
4. DESCRIPTION OF THE SOFTWARE
COMPLEX
A client-server architecture was chosen to fulfill the
tasks [3].
Based on the existing material and technical base,
applications compatible with the Windows 7/10 OS
were developed.
Spectrum! TCP Server
The TCP server takes up 3.7 MB of disk space and
is designed to receive data from the microcontroller
module and distribute it to clients. The data update
period is 1 s. In case of quite active data exchange with
clients, the server needs a fairly wide data channel
calculated on average of 600 kB/s for each client. The
maximum number of connections is set to 500.
ISSN 1562-6016. Problems of Atomic Science and Technology. 2022. №5(141) 143
Application also displays request flow and IP
adresses of connected clients. For better use it can be
hidden to the tray, so the new connected clients will be
shown as a balloon-popup. The interface of application
shown in Fig. 5.
Fig. 5. Spectrum! TCP Server interface
Spectrum!
Client application designed for recording data,
visualization of current data. Data is saved in CSV
format for easier processing and compatibility with
other applications.
The graphic sizes adapt to any monitor sizes and
resolutions. Also, the graphic is easily scaled in any area
convenient for the user, there is an option to choose a
recording period and an instant recording button for
urgent recording in emergency situations.
Every second, the application receives 32768
records in the range from 0 to 4096, which corresponds
to the amplitude received by the microphone. Next,
using the FFT algorithm [4], we get a spectrum that
allows us to estimate the spectral pattern of the existing
signal from 15 to 16384 Hz (according to the minimum
sensitivity threshold of the microphone and the Nyquist
frequency). The user can also switch between spectrum
and raw data observation modes. The interface of
application shown in Fig. 6.
Fig. 6. Spectrum! Interface
Spectrum! ReMember
The application is intended for visualization,
conversion and processing of already saved data.
For the application to work, you need to place it in
the folder with saved data and run it. This application
provides an opportunity to save graphics in full or
scaled parts in BMP format. The application can
currently be used to compare, find the difference
between 2 graphs. Display data both in raw form and in
the form of a spectrum using the FFT algorithm.
All the above parts of the complex are fully
compatible with operating systems Windows 7/10
Professional x32/x64. The interface of application
shown in Fig. 7.
Fig. 7. Spectrum! ReMember interface
Software for STM32F4-Discovery
The STM32F4-Discovery board is equipped with a
12-bit ADC and an RMII interface that allows you to
operate the MAX9814 microphone module and the
DP83848 Ethernet adapter.
When receiving power, the STM32F4-Discovery
board initiates the Ethernet adapter and tries to connect
to the server, if the server is unavailable, the indicator
turns on – the red LED blinks, if the server is
unavailable for too long – the board reboots, which
allows to reset all connections and start the initialization
from the beginning. If the communication line is not
available – the cable is damaged or the cable is missing
– the board turns on the red LED and waits for a correct
connection. If the connection with the server has taken
place and the data is transferred successfully, the board
turns on the indication – the green LED flashes.
The time required to continue data transfer after the
device is turned off and the power is restored is 2…3 s.
In case of critical errors due to network malfunction or
incorrect requests from the server or overload in cases
of network flooding, the device reboots, resetting
connections, makes attempts to reconnect to the server
and, if successful, continues to transfer data.
Accumulation of the data received by the ADC takes
place using two buffers: at first the first one is filled,
then it is queued for transmission and transmitted, while
the second one is filled. Such a carousel of buffers
allows you to transfer data without any data loss [5].
The device also supports hot-swap of the
microphone module, which can fail due to excess
moisture, radiation, or power surges.
5. DEVICE MODULE CONNECTION
DIAGRAM
This device is based on 3 modules: STM32F4-
Discovery, DP83848 and MAX9814. The STM32F4-
Discovery motherboard is connected to the DP83848
adapter using the RMII interface in the way represented
in Fig. 8.
144 ISSN 1562-6016. Problems of Atomic Science and Technology. 2022. №5(141)
Fig. 8. Connection diagram of STM32F4-Discover
and DP83848
The MAX9814 microphone module receives power
from the STM32F4-Discovery board and transmits an
analog signal to the microcontroller's ADC the
connection of modules shown in Fig. 9.
Fig. 9. STM32F4-Discovery and MAX9814 connection
diagram
The device has been tested and calibrated before
installation. The frequencies of the sound generated
corresponded to the frequencies detected by the device.
6. SOME DATA RECEIVED DURING
DEVICE OPERATION
During the operation of the device, the raw acoustic
data represented in Figs. 10 and 11 was obtained
regarding the operation of the magnetic drive.
Fig. 10. Illustration of the operation of the magnetic
drive at a frequency of 2 Hz
Fig. 11. Illustration of the operation of the magnetic
drive at a frequency of 4 Hz
This figures illustrates the presence of drive shocks
to a pattern with a frequency of 2 and 4 Hz.
The water and the metal body of the supercritical
water convection loop act as conductors of sound waves
generated by the impact of the metal drive part to the
pattern. In this way, we get 2 sets of sound waves –
infrasound waves (depending on the suspension
operating frequency of 2, 3 or 4 Hz) and waves
generated by beating, which is formed from elastic
vibrations of deformed metal. Unfortunately, the
infrasound component cannot be distinguished, as for
the reflection of a wave from an obstacle, the size of the
obstacle must be comparable to the wavelength, it can
be concluded that these waves will not be reflected or
resonate under the specified conditions, which means
that a microphone with a range of 20…20000 Hz will
not be able to register it.
The spectral component of the normal operating
mode was also obtained. The result of measurement
shown on Fig. 12.
Fig. 12. Pattern of a normal operating mode
spectral component
Also all the data obtained during the experiment was
stored for future analysis.
CONCLUSIONS
The developed device and software complex
completely fulfill the tasks set for obtaining,
transmitting, storing, processing and visualizing
acoustic data obtained during the experiment.
REFERENCES
1. A.S. Bakai, V.N. Boriskin, A.N. Dovbnya,
S.V. Dyuldya, D.A. Guzonas. Combined effect of
irradiation, temperature, and water coolant flow on
corrosion of Zr-, Ni-Cr-, and Fe-Cr-based alloys //
ASME. J. of Nuclear Rad. Sci. 2016, v. 2(2),
p. 021007 (11 p.), doi: 10.1115/1.4031126
2. O.S. Bakai, V.M. Boriskin, M.I. Bratchenko,
S.V. Dyuldya. Computational Dosimetry and Post-
Irradiation Studies of the Electron Beam Irradiation
Assisted Corrosion and Stress Corrosion Cracking of
Statically Strained Steel Samples in a Supercritical
Water Coolant // Problems of Atomic Science and
Technology. Series “Vacuum, Pure Materials,
Superconductors”. 2022, N 1(137), p. 55-63.
ISSN 1562-6016. Problems of Atomic Science and Technology. 2022. №5(141) 145
3. Chad Z. Hower, Hadi Hariri, Allen O`Neill. Guide
to Internet Direct. Lancaster: “Gazelle”, 2002,
p. 2375.
4. Douglas F. Elliott. Handbook of Digital Signal
Processing: Engineering Applications. Academic
Press, 1987.
5. Carmine Noviello. Mastering STM32. Victoria:
“Leanpub”, 2018, p. 265.
Article received 15.09.2022
РОЗРОБКА ПРИСТРОЮ ТА ПРОГРАМНОГО КОМПЛЕКСУ ДЛЯ АКУСТИЧНОЇ ДІАГНОСТИКИ
ПРОЦЕСІВ, ЩО ВІДБУВАЮТЬСЯ В НАДКРИТИЧНОМУ СТАНІ РІДИНИ,
ТА КОНТРОЛЮ РОБОТИ МАГНІТНОГО ПРИВОДУ
В.М. Борискін, В.В. Чуріков, В.О. Момот
Постає проблема вивчення процесів, що відбуваються під час переходу рідини у надкритичний стан та
при проведенні експериментів. Також існує проблема контролю роботи системи електромагнітного
пристрою. Так як механічний, електронний та інші методи контролю ускладнені за умовами (надвисокий
тиск, висока температура, знаходження частини, що потребує контролю всередині герметичної металевої
системи та знаходиться в умовах опромінення), було обрано акустичний метод дослідження. В результаті
розробки було створено пристрій на базі STM32F407VGT6, DP83848, MAX9814, що дозволяє отримувати
акустичні дані та передавати їх на значні відстані за допомогою мережі Ethernet. Також були розроблені
додатки, що надають змогу візуалізувати, зберігати та опрацьовувати акустичні дані: TCP-сервер для обміну
даними, додаток оператора, що допомагає візуально контролювати роботу магнітного приводу та зберігати
акустичні дані у форматі CSV, додаток для візуалізації та опрацювання збережених даних з використанням
методів статистичного та спектрального аналізів.
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