An accurate detection of the effective values of electric voltage and current from high frequency power generators is a precondition for the development of smart electrotomes. In this light, an energy detection system...An accurate detection of the effective values of electric voltage and current from high frequency power generators is a precondition for the development of smart electrotomes. In this light, an energy detection system based on personal computer (PC) is developed hereby. It senses voltage and current in isolation from generators with transformers, and then the measured values are amplified, filtered, transformed into single-ended signals and converted to RMS. The detected signals are transformed into digital signals through Data Acquisition Card (DAQ) and the data are processed with quadratic fit in Labview. Finally, the controller completes constant power output. The experiment results indicate that the energy detection system can measure the output parameters precisely and the controller can achieve constant power control.展开更多
For Hall measurement under different magnetic fields at LN2 temperature,Hg1-xCdxTe （MCT） film （radius 1 cm） grown on CdTe substrate by LPE is photoengraved into many small Van Der Pauw squares,then their Hall coef...For Hall measurement under different magnetic fields at LN2 temperature,Hg1-xCdxTe （MCT） film （radius 1 cm） grown on CdTe substrate by LPE is photoengraved into many small Van Der Pauw squares,then their Hall coefficients and mobilities are measured and analyzed,respectively.Two films were Hall-tested during the temperature range from LHe 4.2 K to about 200 K.An actual impression on the uniformity of electrical parameters for MCT film can obtained by means of the methods presented in this paper.展开更多
With the rapid development of the social economy,people are paying more and more attention to environmental issues.If society wants sustainable development,it must put energy conservation and emission reduction on the...With the rapid development of the social economy,people are paying more and more attention to environmental issues.If society wants sustainable development,it must put energy conservation and emission reduction on the agenda.At this stage,China has vigorously promoted energy conservation and emission reduction,and all walks of life have gradually embarked on the green road of energy conservation.In recent years,energy saving measures has been widely used in China's oilfield electrical engineering.The author explores and analyzes the basic principles of energy saving measures applied in oilfield electrical engineering,and proposes an effective way to apply energy saving measures in oilfield electrical engineering,hoping to contribute to the energy saving effect of oilfield electrical engineering.展开更多
At present, China's construction engineering industry is in a critical stage of continuous progress and development, and the number of construction electrical engineering projects continues to increase. In order t...At present, China's construction engineering industry is in a critical stage of continuous progress and development, and the number of construction electrical engineering projects continues to increase. In order to improve the management level of building electrical engineering projects, some enterprises begin to combine the application of electrical intelligent technology, making it become an important part of building engineering. In the development process of the construction engineering industry, the wide application of electrical intelligent technology can greatly improve the maintenance efficiency and daily operation level of the building. At the same time, it can also help the construction management unit save the maintenance and maintenance cost of the core link, showing the application advantages of intelligent technology. In addition, after the application of intelligent technology, the relevant building units can effectively collect data information, master the occurrence of accidents and failures in the first time, adjust the corresponding parameters, issue an alarm, and improve the reliability and safety of the entire building.展开更多
At present, people's quality of life is constantly changing, and the demand for high-rise buildings is also increasing, which makes the construction technology to keep pace with the pace of the times to continuous...At present, people's quality of life is constantly changing, and the demand for high-rise buildings is also increasing, which makes the construction technology to keep pace with the pace of the times to continuously innovate, change and improve to meet the needs of construction projects. Electrical engineering is a very important project in construction engineering, which includes the construction of electrical equipment and devices related to construction engineering. The introduction of electrical intelligent technology in electrical engineering can effectively improve the working efficiency of construction, reduce the working pressure of construction personnel, and reduce some construction labor costs.展开更多
Mechanical and electrical equipment is an important part of the current construction engineering, which plays an irreplaceable role in the use of housing construction. However, due to the influence of mechanical and e...Mechanical and electrical equipment is an important part of the current construction engineering, which plays an irreplaceable role in the use of housing construction. However, due to the influence of mechanical and electrical installation technology, personnel quality, equipment problems and design problems, it is difficult to guarantee the quality of mechanical and electrical installation engineering in China. In order to solve these problems, we need to take effective measures according to the nature of the problem, and provide help for the installation of mechanical and electrical equipment in Chinese construction engineering through innovative management methods.展开更多
For a country, energy symbolizes the future and controls the economic lifeline of the country. Only when there is sufficient energy can the livelihood of the masses be guaranteed. With the continuous growth of science...For a country, energy symbolizes the future and controls the economic lifeline of the country. Only when there is sufficient energy can the livelihood of the masses be guaranteed. With the continuous growth of science and technology and economy, energy consumption has become a major factor to block the pace of the economy. Domestic energy supply is also under great pressure. It is urgent to explore energy-saving and environmental protection technologies and their application measures. Introducing energy-saving technology into building electrical design can not only reduce energy consumption, but also curb environmental pollution and improve living environment. Based on the current application status of electrical energy-saving design, this paper analyzes the principles that electrical energy-saving design should follow, and puts forward specific measures on how to use energy-saving technology and reduce energy and resource consumption in building electrical design, in order to promote the sustainable operation of the construction industry.展开更多
With the in-depth advocacy of green development in our country, various fields in the current society have carried out certain reform on their own development mode and working mode. For electrical automation engineeri...With the in-depth advocacy of green development in our country, various fields in the current society have carried out certain reform on their own development mode and working mode. For electrical automation engineering, the application and promotion of energy saving and environmental protection technology can reduce the waste of resources and solve the problem of power resource shortage to a certain extent. Therefore, the relevant departments need to constantly improve the energy-saving design technology in electrical automation engineering to make it play a full role in the electrical field.展开更多
With the increasingly serious energy crisis, civil buildings, as the main consumers of energy, must maintain quality and take measures to reduce energy consumption. At present, the public's demand for basic goods ...With the increasingly serious energy crisis, civil buildings, as the main consumers of energy, must maintain quality and take measures to reduce energy consumption. At present, the public's demand for basic goods is increasing, which affects the increasingly complex electrical design of civil buildings. The designer should design the electrical system of the building according to the actual situation of the building to ensure the quality of the electrical system, save energy and reduce emissions as much as possible. However, the design of energy-saving systems is also influenced by many other factors, and the delay of their design. With the progress of science and technology, the safety, reliability and economy of energy-saving civil electrical equipment design are greatly improved.展开更多
The installation of mechanical and electrical equipment is a very complex work;the installation process involves more processes and types of work. Therefore, we must pay full attention to the installation of mechanica...The installation of mechanical and electrical equipment is a very complex work;the installation process involves more processes and types of work. Therefore, we must pay full attention to the installation of mechanical and electrical equipment in the usual work process, and pay attention to fully accumulate all kinds of experience in the process of practice, so as to better create a new process and technology. In addition, professionals need to effectively analyze the main causes of various problems, and adopt relevant measures to directly solve the problems, so as to better ensure the quality of the installation equipment.展开更多
At present, electrical engineering is closely related to our life and provides us with convenient life and services. However, at present, there are still some problems and interference factors in electrical engineerin...At present, electrical engineering is closely related to our life and provides us with convenient life and services. However, at present, there are still some problems and interference factors in electrical engineering automation equipment, which affect the performance of electrical engineering automation equipment. Therefore, in view of these interference problems, relevant departments should take effective measures to solve these problems, do a good job in anti-interference measures, constantly promote its use efficiency, and provide better services for our lives.展开更多
Building electricity is an important subject of social consumption, and building electrical energy conservation is one of the sustainable development requirements of energy conservation and emission reduction. In rece...Building electricity is an important subject of social consumption, and building electrical energy conservation is one of the sustainable development requirements of energy conservation and emission reduction. In recent years, China has been studying energy-saving methods and measures. Therefore, we should analyze the development of energy-saving technology in building electrical design, and put forward specific measures to develop energy-saving technology, so as to improve the overall energy-saving effect of building electrical design in our country.展开更多
When working underground in coal mines, gas, coal dust, roof and water are all important factors that affect the safety of work life. Once the electrical equipment in coal mines leaks electricity and produces sparks, ...When working underground in coal mines, gas, coal dust, roof and water are all important factors that affect the safety of work life. Once the electrical equipment in coal mines leaks electricity and produces sparks, the consequences are very serious. Therefore, this paper takes the installation and management measures of local grounding protection of electrical equipment in coal mines as the theme, and analyzes and discusses the existing problems of local grounding protection of electrical equipment in coal mines. And summed up the corresponding measures, hoping to attract the attention of relevant departments, improve the awareness of coal mine safety management, provide the most basic guarantee for coal mine workers, and promote the development of my country's coal mining industry.展开更多
文摘An accurate detection of the effective values of electric voltage and current from high frequency power generators is a precondition for the development of smart electrotomes. In this light, an energy detection system based on personal computer (PC) is developed hereby. It senses voltage and current in isolation from generators with transformers, and then the measured values are amplified, filtered, transformed into single-ended signals and converted to RMS. The detected signals are transformed into digital signals through Data Acquisition Card (DAQ) and the data are processed with quadratic fit in Labview. Finally, the controller completes constant power output. The experiment results indicate that the energy detection system can measure the output parameters precisely and the controller can achieve constant power control.
文摘For Hall measurement under different magnetic fields at LN2 temperature,Hg1-xCdxTe （MCT） film （radius 1 cm） grown on CdTe substrate by LPE is photoengraved into many small Van Der Pauw squares,then their Hall coefficients and mobilities are measured and analyzed,respectively.Two films were Hall-tested during the temperature range from LHe 4.2 K to about 200 K.An actual impression on the uniformity of electrical parameters for MCT film can obtained by means of the methods presented in this paper.
文摘With the rapid development of the social economy,people are paying more and more attention to environmental issues.If society wants sustainable development,it must put energy conservation and emission reduction on the agenda.At this stage,China has vigorously promoted energy conservation and emission reduction,and all walks of life have gradually embarked on the green road of energy conservation.In recent years,energy saving measures has been widely used in China's oilfield electrical engineering.The author explores and analyzes the basic principles of energy saving measures applied in oilfield electrical engineering,and proposes an effective way to apply energy saving measures in oilfield electrical engineering,hoping to contribute to the energy saving effect of oilfield electrical engineering.
文摘At present, China's construction engineering industry is in a critical stage of continuous progress and development, and the number of construction electrical engineering projects continues to increase. In order to improve the management level of building electrical engineering projects, some enterprises begin to combine the application of electrical intelligent technology, making it become an important part of building engineering. In the development process of the construction engineering industry, the wide application of electrical intelligent technology can greatly improve the maintenance efficiency and daily operation level of the building. At the same time, it can also help the construction management unit save the maintenance and maintenance cost of the core link, showing the application advantages of intelligent technology. In addition, after the application of intelligent technology, the relevant building units can effectively collect data information, master the occurrence of accidents and failures in the first time, adjust the corresponding parameters, issue an alarm, and improve the reliability and safety of the entire building.
文摘At present, people's quality of life is constantly changing, and the demand for high-rise buildings is also increasing, which makes the construction technology to keep pace with the pace of the times to continuously innovate, change and improve to meet the needs of construction projects. Electrical engineering is a very important project in construction engineering, which includes the construction of electrical equipment and devices related to construction engineering. The introduction of electrical intelligent technology in electrical engineering can effectively improve the working efficiency of construction, reduce the working pressure of construction personnel, and reduce some construction labor costs.
文摘Mechanical and electrical equipment is an important part of the current construction engineering, which plays an irreplaceable role in the use of housing construction. However, due to the influence of mechanical and electrical installation technology, personnel quality, equipment problems and design problems, it is difficult to guarantee the quality of mechanical and electrical installation engineering in China. In order to solve these problems, we need to take effective measures according to the nature of the problem, and provide help for the installation of mechanical and electrical equipment in Chinese construction engineering through innovative management methods.
文摘For a country, energy symbolizes the future and controls the economic lifeline of the country. Only when there is sufficient energy can the livelihood of the masses be guaranteed. With the continuous growth of science and technology and economy, energy consumption has become a major factor to block the pace of the economy. Domestic energy supply is also under great pressure. It is urgent to explore energy-saving and environmental protection technologies and their application measures. Introducing energy-saving technology into building electrical design can not only reduce energy consumption, but also curb environmental pollution and improve living environment. Based on the current application status of electrical energy-saving design, this paper analyzes the principles that electrical energy-saving design should follow, and puts forward specific measures on how to use energy-saving technology and reduce energy and resource consumption in building electrical design, in order to promote the sustainable operation of the construction industry.
文摘With the in-depth advocacy of green development in our country, various fields in the current society have carried out certain reform on their own development mode and working mode. For electrical automation engineering, the application and promotion of energy saving and environmental protection technology can reduce the waste of resources and solve the problem of power resource shortage to a certain extent. Therefore, the relevant departments need to constantly improve the energy-saving design technology in electrical automation engineering to make it play a full role in the electrical field.
文摘With the increasingly serious energy crisis, civil buildings, as the main consumers of energy, must maintain quality and take measures to reduce energy consumption. At present, the public's demand for basic goods is increasing, which affects the increasingly complex electrical design of civil buildings. The designer should design the electrical system of the building according to the actual situation of the building to ensure the quality of the electrical system, save energy and reduce emissions as much as possible. However, the design of energy-saving systems is also influenced by many other factors, and the delay of their design. With the progress of science and technology, the safety, reliability and economy of energy-saving civil electrical equipment design are greatly improved.
文摘The installation of mechanical and electrical equipment is a very complex work;the installation process involves more processes and types of work. Therefore, we must pay full attention to the installation of mechanical and electrical equipment in the usual work process, and pay attention to fully accumulate all kinds of experience in the process of practice, so as to better create a new process and technology. In addition, professionals need to effectively analyze the main causes of various problems, and adopt relevant measures to directly solve the problems, so as to better ensure the quality of the installation equipment.
文摘At present, electrical engineering is closely related to our life and provides us with convenient life and services. However, at present, there are still some problems and interference factors in electrical engineering automation equipment, which affect the performance of electrical engineering automation equipment. Therefore, in view of these interference problems, relevant departments should take effective measures to solve these problems, do a good job in anti-interference measures, constantly promote its use efficiency, and provide better services for our lives.
文摘Building electricity is an important subject of social consumption, and building electrical energy conservation is one of the sustainable development requirements of energy conservation and emission reduction. In recent years, China has been studying energy-saving methods and measures. Therefore, we should analyze the development of energy-saving technology in building electrical design, and put forward specific measures to develop energy-saving technology, so as to improve the overall energy-saving effect of building electrical design in our country.
文摘When working underground in coal mines, gas, coal dust, roof and water are all important factors that affect the safety of work life. Once the electrical equipment in coal mines leaks electricity and produces sparks, the consequences are very serious. Therefore, this paper takes the installation and management measures of local grounding protection of electrical equipment in coal mines as the theme, and analyzes and discusses the existing problems of local grounding protection of electrical equipment in coal mines. And summed up the corresponding measures, hoping to attract the attention of relevant departments, improve the awareness of coal mine safety management, provide the most basic guarantee for coal mine workers, and promote the development of my country's coal mining industry.
