Microprocessor OCM-003 device for ozone concentration measuring
In the paper, the OCM-003 type meter of ozone concentration operated in a gaseous environment with microprocessor control unit has been developed. Such device belongs to spectroscopic type meters. The measuring principle is based on the absorption of ultraviolet (UV) light at a wavelength of 254 n...
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
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| Цитувати: | Microprocessor OCM-003 device for ozone concentration measuring / S.P. Gubarev, G.P. Opaleva, V.S. Taran, M.I. Zolototrubova, Y.N. Nezovibat’ko // Вопросы атомной науки и техники. — 2016. — № 6. — С. 231-233. — Бібліогр.: 5 назв. — англ. |
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irk-123456789-1154402017-04-05T03:02:37Z Microprocessor OCM-003 device for ozone concentration measuring Gubarev, S.P. Opaleva, G.P. Taran, V.S. Zolototrubova, M.I. Nezovibat’ko, Y.N. Low temperature plasma and plasma technologies In the paper, the OCM-003 type meter of ozone concentration operated in a gaseous environment with microprocessor control unit has been developed. Such device belongs to spectroscopic type meters. The measuring principle is based on the absorption of ultraviolet (UV) light at a wavelength of 254 nm. It was shown that the measurable ozone concentration range comprised 0.1…100 mg/l. The ozone meter is controlled by the PIC18F25K80 microprocessor-based controller produced by Microchip Technology Inc. The original software was developed. The possibility to developing a simple low-cost meter of ozone has been shown. Разработан измеритель концентрации озона в газовой среде с микропроцессорным управлением типа OCM-003. Устройство относится к измерителям спектроскопического типа на основе поглощения ультрафиолетового излучения на длине волны 254 нм (диапазон измеряемой концентрации от 0,1 мг/л до 100 мг/л). Управление измерителем озона осуществляется контроллёром на основе микропроцессора PIC18F25К80 производства фирмы Microchip Technology. Было разработано оригинальное программное обеспечение. Показана возможность разработки простого и недорогого измерителя концентрации озона. Було розроблено вимірювач концентрації озону в газовому середовищі з мікропроцесорним управлінням типу OCM-003. Пристрій відноситься до вимірювача спектроскопічного типу на основі поглинання ультрафіолетового випромінювання на довжині хвилі 254 нм (діапазон вимірюваної концентрації від 0,1 до 100 мг/л). Управління вимірювачем озону здійснюється контролером на основі мікропроцесора PIC18F25К80 виробництва фірми Microchip Technology. Було розроблено оригінальне програмне забезпечення. Показана можливість розробки простого й недорогого вимірювача концентрації озону. 2016 Article Microprocessor OCM-003 device for ozone concentration measuring / S.P. Gubarev, G.P. Opaleva, V.S. Taran, M.I. Zolototrubova, Y.N. Nezovibat’ko // Вопросы атомной науки и техники. — 2016. — № 6. — С. 231-233. — Бібліогр.: 5 назв. — англ. 1562-6016 PACS: 52.70.Ds; 52.70Kz http://dspace.nbuv.gov.ua/handle/123456789/115440 en Вопросы атомной науки и техники Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
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Low temperature plasma and plasma technologies Low temperature plasma and plasma technologies |
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Low temperature plasma and plasma technologies Low temperature plasma and plasma technologies Gubarev, S.P. Opaleva, G.P. Taran, V.S. Zolototrubova, M.I. Nezovibat’ko, Y.N. Microprocessor OCM-003 device for ozone concentration measuring Вопросы атомной науки и техники |
| description |
In the paper, the OCM-003 type meter of ozone concentration operated in a gaseous environment with
microprocessor control unit has been developed. Such device belongs to spectroscopic type meters. The measuring
principle is based on the absorption of ultraviolet (UV) light at a wavelength of 254 nm. It was shown that the
measurable ozone concentration range comprised 0.1…100 mg/l. The ozone meter is controlled by the
PIC18F25K80 microprocessor-based controller produced by Microchip Technology Inc. The original software was
developed. The possibility to developing a simple low-cost meter of ozone has been shown. |
| format |
Article |
| author |
Gubarev, S.P. Opaleva, G.P. Taran, V.S. Zolototrubova, M.I. Nezovibat’ko, Y.N. |
| author_facet |
Gubarev, S.P. Opaleva, G.P. Taran, V.S. Zolototrubova, M.I. Nezovibat’ko, Y.N. |
| author_sort |
Gubarev, S.P. |
| title |
Microprocessor OCM-003 device for ozone concentration measuring |
| title_short |
Microprocessor OCM-003 device for ozone concentration measuring |
| title_full |
Microprocessor OCM-003 device for ozone concentration measuring |
| title_fullStr |
Microprocessor OCM-003 device for ozone concentration measuring |
| title_full_unstemmed |
Microprocessor OCM-003 device for ozone concentration measuring |
| title_sort |
microprocessor ocm-003 device for ozone concentration measuring |
| publisher |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| publishDate |
2016 |
| topic_facet |
Low temperature plasma and plasma technologies |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/115440 |
| citation_txt |
Microprocessor OCM-003 device for ozone concentration measuring / S.P. Gubarev, G.P. Opaleva, V.S. Taran, M.I. Zolototrubova, Y.N. Nezovibat’ko // Вопросы атомной науки и техники. — 2016. — № 6. — С. 231-233. — Бібліогр.: 5 назв. — англ. |
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Вопросы атомной науки и техники |
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2025-07-08T08:46:56Z |
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| fulltext |
ISSN 1562-6016. ВАНТ. 2016. №6(106)
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. 2016, № 6. Series: Plasma Physics (22), p. 231-233. 231
MICROPROCESSOR OCM-003 DEVICE FOR OZONE
CONCENTRATION MEASURING
S.P. Gubarev, G.P. Opaleva, V.S. Taran, M.I. Zolototrubova, Y.N. Nezovibat’ko
Institute of Plasma Physics of the NSC KIPT, Kharkov, Ukraine
E-mail: gubarev@kipt.kharkov.ua
In the paper, the OCM-003 type meter of ozone concentration operated in a gaseous environment with
microprocessor control unit has been developed. Such device belongs to spectroscopic type meters. The measuring
principle is based on the absorption of ultraviolet (UV) light at a wavelength of 254 nm. It was shown that the
measurable ozone concentration range comprised 0.1…100 mg/l. The ozone meter is controlled by the
PIC18F25K80 microprocessor-based controller produced by Microchip Technology Inc. The original software was
developed. The possibility to developing a simple low-cost meter of ozone has been shown.
PACS: 52.70.Ds; 52.70Kz
INTRODUCTION
Ozone has been used in dozens of industries for
many years to improve sanitation of surfaces, raw water
purification, air treatment and odor control, wastewater
treatment, and much more. Ozone is used primarily for
disinfection purposes and the concentration needs to be
accurately measured and monitored since it is
considered a hazardous material.
Stationary spectrometers are rather expensive for
laboratory tests, therefore portable devices for the
detection of high, low and medium MAC levels
(maximum admissible concentration) ozone
concentrations are of great interest. The most common
portable meters available on the market are based on the
principle of absorption by ozone of ultraviolet radiation,
the accuracy and reliability of which are constantly
being improved.
Widely used meters for ozone measuring
concentration, such as OZONE-5 (JSC "Angarsk -
OKBA", Russia), analyzer UVOZON 200.50 (Trailigaz
Instruments, France) [1-3] and others provide measuring
of the mass-volume ozone concentrations in ozone-air,
ozone-oxygen and ozone-nitrogen gas mixtures. Along
with the indisputable advantages of these devices there
are a number of drawbacks. For example, the device
OZONE-5 has a large weight (12 kg), whereas the
device UVOZON 200.50 is very expensive.
At the Institute of Plasma Physics NSC KIPT, there
was designed portable ozone meters operated in gaseous
environment, including those based on the principle of
measuring the absorption of ultraviolet radiation at
254 nm wavelength.
The present article describes the device for
measuring the ozone concentration of OCM-003 type
(Fig. 1.).
1. MAIN PART
The measurement system consists of a dual channel
analyzer of differential signal value containing
information about ozone concentration in gas.
The structural scheme of the device is shown in
Fig. 2.
Fig. 1. OCM-003 ozone concentration meter
In the double-beam photometer the light from an
extended source of UV radiation passes through two
identical lines (channels). The light flow from one
channel passes through the cuvette with the measured
gas, and from the other channel - through a cuvette with
"zero" gas (air or oxygen containing no measurable
component). Then, each beam of light has been directed
at the individual photodetectors. Signals from the
photodetectors come to the current-voltage converter,
logarithmic and differential amplifiers, and further to
an analog-digital converter (ADC) of the
microcontroller.
With this scheme of construction of ozone
concentration meter the requirement for identity
characteristics of both photodetectors is not a strict and
variation of sensitivity can be compensated by changing
the electric circuit parameters, or by an optical method:
the weakening of one of the light beams
(diaphragming).
Temporary change of ultraviolet radiation also has
no significant effect on the measurement accuracy.
Thermal gradients between the cuvettes are
decreased due to placing them on the common metal
plate made of aluminum alloy. All elements of the
meter, including ultraviolet lamp must be screened.
232 ISSN 1562-6016. ВАНТ. 2016. №6(106)
Fig. 2. The device’s structural scheme
Control of meter operation is realized by
microprocessor controller designed at the Institute of
Plasma Physics NSC KIPT. It is implemented on the
base of the PIC18F25K80 microcontroller produced by
Microchip Company Inc. [4]. The controller provides a
control function of the operation of the ozone meter,
mode selection and timing of the process. The analog
signal from the differential amplifier is converted by an
analog-digital converter ADC module into a digital
code. Further, the value of the current concentration is
calculated by the microprocessor according to the
formula (1). To reduce measurement errors,
microprocessor performs converting and reading of the
incoming signal for 200 times for further averaging of
the obtained data. Minimum and maximum values are
removed from the resulting array; the remaining data is
summarized and calculated the average value of the
converted data. To visualize the data the LCD WH2002
indicator is used. It contains two lines of twenty
characters.
Mode selection, configuration, installation of "0" is
carried out by two buttons located on the front panel.
The measuring device is equipped with RS-232
serial port. This option provides visualization and
archiving of ozone concentration measurement results
on the computer.
For the convenience of making changes to program
of the microcontroller without disassembling the device
was provided a connector for in-circuit debugging
(ICD).
Specifications:
Overall dimensions: length – 160 mm
Width – 180 mm
Height – 85 mm
Weight 1.15 kg
Power consumption – 7 W.
The original software was developed. Software
module is created in the environment of development
MPLAB IDE in a specialized language C18, designed to
program the microcontrollers.
Debugging and calibration of the device was carried
out at the Institute of Plasma Physics (IPP) on a special
stand [5]. Ozone generator produces ozone
concentration in the range from 0 to 100 mg/l. As
reference standard, an American ozone meter M454
produced by Teledyne Advanced Pollution
Instrumentation Inc. was used. It provides a
measurement accuracy of ± 1 % of full scale. The
response time is 2 seconds. Measurement range is
0.1…400 g/m
3
. Ozone meter M454 was set in series
with described apparatus OCM-3 in the pipeline with
ozone air mixture. As a result, series of ADC codes
from each device at different values of the ozone
concentration were obtained. The graph of ozone
concentration values registered by devices OCM-003
and M454 versus ADC codes are shown in Fig. 3.
Fig. 3. Graph of ozone concentration values registered
by devices OCM-003 and M454 versus ADC codes
The graph shows that the calibration curve 1 is
composed of two parts. If the ADC code value x< 2000,
the ozone concentration value is calculated by a linear
function C ozone = K∙x, where K = 0.021255. If the ADC
code value is x >= 2000, so the value of the ozone
concentration is calculated according to the formula:
ISSN 1562-6016. ВАНТ. 2016. №6(106) 233
,
where
A1 = 24.54673;
t1 = -2643.85574;
y0 = -9.45805.
These formulas are stored in the memory of the
microprocessor.
CONCLUSIONS
A domestic meter of ozone concentration in a
gaseous environment with microprocessor control unit
was developed. The measuring principle is based on the
absorption of ultraviolet (UV) light at a wavelength of
254 nm. It was shown that the measurable ozone
concentration range comprised 0.1…100 mg/l. The
ozone meter is controlled by the PIC18F25K80
microprocessor-based controller produced by Microchip
Technology Inc. The original software was developed.
The possibility to developing a simple low-cost meter of
ozone has been shown.
REFERENCES
1. http://www.okba.fis.ru.
2. http://www.smolenskpribor.ru.
3. http://www.twobetech.com.
4. http://microchip.com.
5. S.P. Gubarev, V.V. Krasnyi, G.P. Opaleva,
V.S. Taran, M.I. Zolototrubova. The Software-
Apparatus Complex for Diagnostics of the Ozone
Sterilizers // Proceedingsof the XXXI International
Scientific Conference ELNANO 2011 April 12-14, Kyiv,
Ukraine, p. 59.
Article recived 23.09.2016
МИКРОПРОЦЕССОРНОЕ УСТРОЙСТВО OCM-003
ДЛЯ ИЗМЕРЕНИЯ КОНЦЕНТРАЦИИ ОЗОНА
С.П. Губарев, Г.П. Опалева, В.С. Таран, М.И. Золототрубова, Ю.Н. Незовибатько
Разработан измеритель концентрации озона в газовой среде с микропроцессорным управлением типа
OCM-003. Устройство относится к измерителям спектроскопического типа на основе поглощения
ультрафиолетового излучения на длине волны 254 нм (диапазон измеряемой концентрации от 0,1 мг/л до
100 мг/л). Управление измерителем озона осуществляется контроллёром на основе микропроцессора
PIC18F25К80 производства фирмы Microchip Technology. Было разработано оригинальное программное
обеспечение. Показана возможность разработки простого и недорогого измерителя концентрации озона.
МІКРОПРОЦЕСОРНИЙ ПРИСТРІЙ OCM-003
ДЛЯ ВИМІРЮВАННЯ КОНЦЕНТРАЦІЇ ОЗОНУ
С.П. Губарєв, Г.П. Опалєва, В.С. Таран, М.І. Золототрубова, Ю.М. Незовибатько
Було розроблено вимірювач концентрації озону в газовому середовищі з мікропроцесорним управлінням
типу OCM-003. Пристрій відноситься до вимірювача спектроскопічного типу на основі поглинання
ультрафіолетового випромінювання на довжині хвилі 254 нм (діапазон вимірюваної концентрації від 0,1 до
100 мг/л). Управління вимірювачем озону здійснюється контролером на основі мікропроцесора
PIC18F25К80 виробництва фірми Microchip Technology. Було розроблено оригінальне програмне
забезпечення. Показана можливість розробки простого й недорогого вимірювача концентрації озону.
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