shat Vietnam

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The review about some device designed in institute of physic and electronic for industrial and agriculture enterprise in Vietnam for Several years. Nguyen Manh Shat, et al. Institute of physics and electronic, Hanoi, Vietnam. SYMPOSIUM BY ELECTRONICS & COMPUTING NEC-05, VARNA-BULGARIA

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Area: total: 329,560 sq km land: 325,360 sq km water: 4,200 sq km 81,624,716 (July 2003 est.) 82,624,716 (July 2005 est.) Population: Southe astern Asia, bordering the Gulf of Thailand, Gulf of Tonkin, and South China Sea, along Laos, and Cambodia VIETNAM Capital: Hanoi Hymne national

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Nguyen Manh Shat, and others persons. Institute of physics and electronic, Hanoi, Vietnam. The research of the some devices designed in institute of physics and accepted application in the industrial operations and agriculture organizations in Vietnam for several years. The main tasks of the Research are: - Research the production of some instruments in the cement factory. Design and manufacture automatic control system for the clinker discharge, automatic control system for the level of cement in barrel use gamma ray. - Research the system for seeking a place of the finding oil and portable analyze system for oil. - Research the systems for the automatic control quality of gold - Research the systems for the automatic control quality of coal. Research the systems automatic weighing coal on conveyor-machine use gamma ray.

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- Design and manufacture automatic control system for the clinker discharge, automatic control system for the level of cement in barrel use gamma ray in the cement factory. Cement production is a big industry branch and plays an important role in economy. In present, all technology systems of rotary kiln type cement production in Vietnam are imported. The production systems of mechanize vertical kiln type and automates partially are also imported from China. Recently, Vietnam manufacturers have tried to produce domestically some instruments, but the major parts of these instruments are for vertical kiln type only and other ones for rotary kiln type, which are big in amount, are non-standard and undervalue. To have a thorough grasp of technology and instruments and to reduce of investments in manufacture and maintenance, the improvement of instrument manufacture and technology domestically is needed

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Determinate level of Cement on Barrens: It is Necessary to define the level of cement or clinker in strained. Usually strained big and broad so define How much amounts of the cement in him much it is difficult, but Method of the measurement with straightedge not possible and not comfortable, And it is necessary all time to measure. So we use the method a Gamma rays, and he works such, image: Design and manufacture automatic control system clinker discharge, automatic control system for the level of cement in barrel use gamma ray in the cement factory. cement barrel Radioactive Source C137 Counter System C49 Cement-iron wall Figure 1, Block-diagram of the part of this system

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- Design and manufacture automatic control system clinker discharge, automatic control system for the level of cement in barrel use gamma ray in the cement factory. Cement plants are the greatest polluting sources among building material producers. Pollutants are typically dust and SO2 produced from the five major cement factories, Bim Son, Hoang Thach, Hai Phong, Hai Tian I and Hai Tian II as well as from about 60 vertical-kiln smaller sized plants in various provinces. Electrostatic dust collecting facilities have only been installed at Hoang Thach, Bim Son and Hai Tian II. Accordingly, the cement sector generates tens of thousands of tonnes of dust and gaseous wastes into the atmosphere daily. Other toxic gases of concern are SO2, CO, CO2, NOx, and HF. These toxic gases along with high concentrations of dust are generated from the Dapeau glass and porcelain plant having a 1,000 tonne capacity and thousands of brick and lime kilns Counters Amplifiers & shaper arithmetical logic controller The wheel Display Converter Printer Figure 4, Block-diagram of the part of this system

Design the system for seeking a place of the  finding oil and portable analyze system for oil.: 

Design the system for seeking a place of the finding oil and portable analyze system for oil. By G N Florov [4] and founded on measurement of relation of intensity of thermal neutrons in rock from time, elapsed after a momentum of fast neutrons of a source. The pulse neutron-source is served by the generator, in which one the neutrons will be derivated at the expense of reacting D+T+He+n on the target with tritium under operating accelerated up to energy 100 кev of ions of deuterium, with pulse modulation of an ionic current of a handset. The indicator is served by boric meters of thermal neutrons. The recording circuit contains a temporary analyzer, which one allows to excrete signals from neutrons, coming to the indicator in given period т after termination a momentum of neutrons. The number of such neutrons descends on exponential law

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Amplifier TDC-converter Detec-tor Control system & control logic Power supplier & Power converter for HVower converter fo URT URT- Unit To the Cable Figure 3, Block-diagram of the maiden part of this system

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URT-unit PC Notebook Filter-unit Power supplier Unit ADC Printer Ampl. Figure 4, Block-diagram of the second part of this system   Detector From cable

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THE SUMMARY During the 1986-2003 years at the Vietnam works is underway toward the seeking a place of findings of petroleum for is extracted actively are conducted.to buy of the import equipment in this time it is rather long and dearly. Therefore we have solved to make except for drill of installation, which already are at the geologists. The system for seeking of a place of a finding of petroleum based on the use of the electronic system for data-transmission system from an oil-well is describe and system for data-processing. This system is applied in oil industries of Vietnam; she is given a capability to learn interesting parameters in oil-wells, which one is in large grounds and by the sea. The investigation has been performed at the institute for nuclear physics & electronics, Hanoi, Vietnam - Design the system for seeking a place of the finding oil and portable analyze system for oil. Gives an estimation of effective applications nuclear electronics in economy and industries in Vietnam for several years.

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- Design the system for seeking a place of the finding oil and portable analyze system for oil. The portable analyze system PetroVietnam will extract the 100,000,000th ton of oil on Feb. 2005. And has also pumped 5.72 billion cubic meters of associated gas up till now. The achievements, the corporation has over past times boosted exploration operations to find new oil and gas sources for the country. "Exploration operations cost some US $1,8 billion a year,

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Design and manufacture the systems for the automatic control quality of gold Gauging of emanation L-of a series of platinum differs nothing from higher - circumscribed. The spectrum of platinum is analogous to a spectrum of gold, only is arranged a little bit more to the left on an energy scale. Obtained spectrums were handled on PC-a computer under the original program (in tongue Turbo-C). The program plugged following operations - Measurement of the spectrum; - Coercion of a spectrum to the given scale on energy; - Determination and scaling of a hum in a working area; - Adjustment of standard spades of a L-series of Gold and Silver to points of a spectrum in appropriate windows. Then were computed squares of spades La and Lb gold to analogous spades of silver. In the capacity of analytical argument used average of these ratios. Treated spectrums of gold and copper are instanced in a Fig.5. Figure 5: Schematic cut of the stand 1-radioactive source; 2-Collimator; 3- mechanical regulation; 4-investigation sample; 5- detector; 6- preamplifiere; 7- screen; 8- Duare with liquite nitrogen;

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Recently, in linkage with change economic situation, more and more interest cause qualitative Determination both in conditions of firing range, and on tradethe markets, first of all gold, silver and platinum, small on to stocks of impurity,but Distinguished by the tall contents metal. We had been set the task of development of a procedure Kernel - electronic extraction of gold or still is called Rangel-fluorescent method (and in the further and metals Silvered group) from samples of the decorated Materials with the subsequent determination of their concentrating with the help the Rangel-fluorescent system. The Rangel-radiometric method of the assaying sets up on driving of atoms of parsed units with the help uncollided radiation from radioactive isotope and on the Subsequent registration of characteristic emanation excited atoms with the help Special the radiometric instrumentation. With the help of radioactive source Cd-109 or Fe-55 the X-radiation of L-series of gold was energized and Silver which it is gauged with help Ge (Li the semiconductor detector and multichannel analyzer, which it set up on PC. Design and manufacture the systems for the automatic control quality of gold

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Semic- detector Spectro- Ampl. ADC PC Highvoltag. Power-ply Preamp. Electronic scales Powersupply Semic- detector Spectro- Ampl. ADC PC Preamp. Electronic scales Powersupply Figure 4, Block-diagram of the part of this system Design and manufacture the systems for the automatic control quality of gold Analytical spectrums System of the analysis The portative semiconducting detector - ultra-pure silicon 40 cubical centimeters with the sanction 1,3 КэВ (Canberra). Certainly it only preliminary analysis to learn some parameters, and then in labs will conduct final analysises with the help of an activation analysis, where the irradiation a sample implements a booster by a microtron.

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Design and manufacture the systems for the automatic control quality of gold The main Elements for diterminations

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Figure : Block-diagram of the Principle of Gamma-weighing machine - Design and manufacture the systems automatic weighing coal on conveyor-machine use gamma ray. The old method of the determination amount cargo, is used method of the determination on level of water. This not exactly and depends on many facts, for example: from accuracy of the fission, and that more naves, that more mistake; from natural water (the wave, big or small); From winds, there is or no winds and so on. Counters The wheel Radioactive Source C137 Monitor Counters

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Counters Amplifiers & shaper arithmetics logic controller Counters Converter Figure 4, Block-diagram of the part of this system - Design and manufacture the systems automatic weighing coal on conveyor-machine use gamma ray. Contr.Counter

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To buy of the import equipment in this time it is rather long and dearly. Therefore we have solved to make except for drill of installation, which already are at the geologists. The system for seeking of a place of a finding of petroleum based on the use of the electronic system for data-transmission system from an oil-well is described and system for data-processing. The instruments are well designed with high stability and ability. This system is applied in oil industries of Vietnam; she is given a capability to learn interesting parameters in oil-wells, which one is in large grounds and by the sea. The investigation has been performed at the institute for nuclear physics and electronics, Hanoi, Vietnam. Now in Vietnam extracts over 300 millions tone of petroleum and more 26, 5 billion cubic meters of gases. which there are more petroleum chinks extracts petroleum in Vietnam. All are our systems said well work and helped we vastly spared Much money for state. The Findings:

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THE END THE END Thank you for attention