Electronic machinery Papers - 9 - Professional Electronic machinery Research Papers

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Based on direct spread spectrum communication system systemview Simulation
Abstract: Due to interference spread spectrum communication ability, a good hiding, easy to achieve the advantages of multicast transmission in mobile communications, wireless data communications to be more widely used of which is the direct sequence spread spectrum communications using The most typical way of spreading work, this paper using simu...
Post Time:Mar 7,2010 TAG:Electronic machinery
Abandoned chemical plant dismantling the organization and implementation
Abstract: For flammable, explosive, toxic chemical plant scrapped, due to replacement is difficult to remove when it is difficult, risk factors and more, in order to ensure removal of construction of the device in a controlled state, the incident could take the right order emergency measures, incident handling and reasonable manner, removal of the...
Post Time:Mar 7,2010 TAG:Electronic machinery
Loader Hydraulic System Analysis Study
Abstract: The hydraulic system loader machine a comprehensive study of the loader hydraulic system, a number of theories of the theoretical analysis and the different conditions Loader hydraulic system and hydraulic steering system of the experimental results discussed control of cylinder valve when the pressure loss, flow amplified steering with ...
Post Time:Mar 3,2010 TAG:Electronic machinery
Management of offshore platform equipment lubrication
Author: Chen Ankun Jin Jianmin Li in China Abstract: The importance of offshore platform equipment, lubrication management, from "set lubrication" to start, in-depth to explain how to make device "Five lubrication", "three filters." For the next lubrication oil plant equipment management demands a higher . Keywords: equipment, lubrication, fiv...
Post Time:Mar 3,2010 TAG:Electronic machinery
Poor water quality for industrial boilers and protection of the hazards
Abstract: Based on many years of work experience, and with reference to the large number of documents to explain the general industrial water boiler water quality, poor water quality analysis of the boiler for the harm caused by industrial boilers, and proposed protection measures. Keywords: water quality, poor, industrial, boiler, hazards, prot...
Post Time:Mar 3,2010 TAG:Electronic machinery
Access network technology in the railway communication in the Application of
Abstract: high-speed train to the quasi-high speed and direction forward, and services for communication services put new demands, must be advanced, modern wired and wireless communications, transmission and access to, the upgrade of Railway Communication Network , play a railway communications network in the national economy of social and economi...
Post Time:Mar 3,2010 TAG:Electronic machinery
Filament material to improve the level of control of stem
Abstract: Device status, combined with the actual production needs, based on existing technical conditions on the stem rod feeder operation methods and equipment improvements to enhance the overall level of control equipment, to improve product quality and optimize production management purposes. Key words: work rate, standard deviation, precisi...
Post Time:Mar 2,2010 TAG:Electronic machinery
On the mining company electromechanical equipment maintenance and management
Abstract: Equipment maintenance is to ensure the normal operation of the primary means of equipment is a major coal enterprises management, is a major part of production expenses. Describes electrical and mechanical equipment maintenance system development and maintenance of mechanical and electrical equipment, methods class set, and China's minin...
Post Time:Mar 2,2010 TAG:Electronic machinery
Electronic key technology of energy saving lamps
Abstract: Electronic energy-saving lamp is a new energy saving lighting equipment introduced energy-saving lamps in the manufacturing process of several key technologies related to engineering and technical personnel to provide a reference. Keywords: Electronic energy-saving lamps, manufacturing, key technologies 1 Introduction Energy conser...
Post Time:Mar 2,2010 TAG:Electronic machinery
Underactuated robotic arm system Research
Abstract: The passive joint can not arm the output power and torque, force and torque of the system depends mainly on the input arm of the joint initiative from the start due to the meaning of the drive system, an overview of domestic and foreign underactuated robotic arm System theory, in order to find trends in this area of researc...
Post Time:Mar 1,2010 TAG:Electronic machinery
ROG from the BCG matrix to study the evolution of the matrix
Abstract: The famous Boston Consulting Group (BCG) Array is the most commonly used in business planning strategic tool, but from a static point of view of the BCG matrix does not always apply to the analysis of platform-type investments or the uncertainty of the follow-up opportunities. Real options growth (ROG) the further development of the BC...
Post Time:Mar 1,2010 TAG:Electronic machinery
CNC tool and the development of the status quo
Abstract: This paper analyzes the characteristics of CNC tool in recent years, tool materials and structures, the future development trend of CNC tool. Keywords: tool, tool materials and structures, future trends 1 CNC tool design Tool manufacturers are now making such a diameter of 0.25 inch drill bit. With a 0.5μm high-speed precision fine...
Post Time:Mar 1,2010 TAG:Electronic machinery
Video surveillance system of basic measures to prevent lightning strikes
Abstract: In order for video surveillance system to take effective lightning protection measures to ensure reliable monitoring system to normal operation, we must first accurately understand the composition of video surveillance systems, and lightning strikes cause damage to the appropriate choice of lightning protection devices, research and of s...
Post Time:Mar 1,2010 TAG:Electronic machinery
Submersible sewage pump automatic couplers Design
Abstract: The submersible pump and its development, focusing on analysis of the main features of submersible sewage pumps and related design features of the various components and then for the submersible pump automatic coupling installation and auto-related devices designed to study the issue. Keywords: submersible pump, features analysis, desi...
Post Time:Feb 28,2010 TAG:Electronic machinery
VOIP voice gateway hardware key technologies
Abstract: VOIP voice gateway in the traditional switched telephone network and IP network as a bridge between the greatly accelerated the pace of the popularization and development of VOIP, have a good commercial value for VOIP voice gateway features a detailed introduced, then the component of the voice gateway device models, features, usage, har...
Post Time:Feb 28,2010 TAG:Electronic machinery
On the "white + black" surface reflection cracks prevention and treatment
Abstract: The old cement concrete pavement into an asphalt pavement technology has been studied and discussed. For cement concrete pavement asphalt layer reflective cracking problems, analyze the causes of the problem and proposed control measures and appropriate treatment. Keywords: cement concrete, reconstruction, asphalt concrete, reflective ...
Post Time:Feb 28,2010 TAG:Electronic machinery
Waste heat boiler feed water control valve on the diagnosis and treatment of accident
Abstract: The waste heat boiler air control valve spool rotation accident diagnosis and treatment. Keywords: boiler, pneumatic valve, diagnosis, treatment 1 Overview Waste heat boiler CNOOC Chemical Co., Ltd. is a fertilizer imported from Italy, with 90 years of advanced production technology of steam boilers production capacity of 100T / H ...
Post Time:Feb 28,2010 TAG:Electronic machinery
TV transmitter power amplifier design of the composition and
Abstract: For the development of TV transmitter, the digital television transmitters in the development focus of the transmitter power amplifier design in a clear television transmitter power amplifier requirements, based on the analysis of the power amplifier and the main component of technical indicators and further study of the television trans...
Post Time:Feb 28,2010 TAG:Electronic machinery
Installation and commissioning of turbine generator
Summary: generator installation and commissioning is to ensure that an important prerequisite for the normal operation of the generator. Describes the structural characteristics of turbo-generator, the turbine installation and commissioning are summarized, and made note of the problem. Keywords: turbine, installation, commissioning Structural ...
Post Time:Feb 26,2010 TAG:Electronic machinery
Single-chip dual-motor positioning system in applied research
Abstract: Two motor is positioned in the space of two vertically placed on a motor, driven by the motor to perform a mechanical operation. On the microcontroller in the application of dual-motor positioning system for analysis, the focus of motor control circuit design analysis. Keywords: microcontroller, the power control circuit, Aimegao 1 I...
Post Time:Feb 25,2010 TAG:Electronic machinery
On the mechanical manufacturing of intelligent technology trends
Abstract: With the rapid development of computer technology, traditional manufacturing industries began a fundamental change in the industrial countries to invest heavily. Of modern manufacturing technology research and development and put forward a new manufacturing model. Keywords: machinery, intelligent technology, system 1 machinery manufa...
Post Time:Feb 25,2010 TAG:Electronic machinery
Car showroom electrical design analysis
Abstract: The electrical drawings of a car showroom has been designed, in the design process, some of their knowledge and experience from the electrical design and its role in the profession have the quality to be specific about the implementation of construction design . Keywords: electrical design; electrical engineer; drawings summary This ...
Post Time:Feb 24,2010 TAG:Electronic machinery
On the application of inverter technology
Abstract: A brief discussion of the principles of energy conversion constant pressure water supply; with examples of the effect of energy conversion was calculated. Keywords: frequency; energy; principle; energy savings calculations 1 Introduction I plant integrated pump 9 pumps, including three industrial pumps, fire pump regulator 2, 2 fir...
Post Time:Feb 24,2010 TAG:Electronic machinery
PLC-based control of CNC machine tools Electric
Abstract: The main PCB of high precision CNC machine electrical control system are introduced, presented the overall plan and the electrical control system design framework and detailed high-precision CNC PCB electrical control system hardware design and the functional modules the system uses SIMOTION D, the drive, motor, encoder constitute a clos...
Post Time:Feb 24,2010 TAG:Electronic machinery
On the digital television signal indicators and monitoring
Abstract: The introduction of digital cable television system signals technical indicators and specific monitoring methods. Keywords: TS stream; QAM; monitoring; stream analyzer A transmission network technical parameters After MPEG-2 source coding and MPEG-2TS multiplexed transport stream generated by MPEG-2 transport multiplex packets thro...
Post Time:Feb 24,2010 TAG:Electronic machinery
User statistics reliability assessment system of
Summary: User power supply reliability is the ability of business users to continue to supply a specific embodiment, is a major electricity supply company of quality indicators to carry out reliable statistical evaluation of low-voltage power users, is to further improve equipment operation and management level needs, but also the power supply ent...
Post Time:Feb 24,2010 TAG:Electronic machinery
Industrial furnace system design analysis of PLC interference
Abstract: In industrial environments, PLC anti-jamming design PLC control system design occupies a very important position, the source of interference for a detailed analysis, discussion, from both hardware and software described PLC control system anti-jamming design . Keywords: PLC; sources of interference; anti-jamming design 1 PLC control ...
Post Time:Feb 23,2010 TAG:Electronic machinery
Operation of the transformer insulation monitoring
Abstract: The operating voltage of the transformer insulation monitoring of regular power supply can effectively protect the reliability of analysis of monitoring data collection, and detailed study of the insulation monitoring of test content and principles to improve power supply reliability. Keywords: Insulation monitoring; operating voltage;...
Post Time:Feb 23,2010 TAG:Electronic machinery
On the vocational college laboratory measuring instruments measuring the daily management and maintenance
Abstract: As a practical teaching based vocational colleges, higher utilization of laboratory equipment, instruments and equipment the event of damage is also more prominent, so for the daily management and laboratory instruments, equipment maintenance will directly affect the conduct of normal school education. how to improve the daily management...
Post Time:Feb 23,2010 TAG:Electronic machinery
Analysis of steam turbine power plant transformation DEH
Abstract: grid interconnection, Duty cycle changes quickly, simply by monitoring attendant adjustment, it is difficult to meet regional tie-line load and the load transfer for a given deviation of less than 3 percent requirement. Implementation of DEH (digital electro-hydraulic control system) can be improve the controllability of the whole crew, ...
Post Time:Feb 23,2010 TAG:Electronic machinery
Control of energy-saving central air conditioning
Abstract: The central air-conditioning energy saving control technology analysis, the main analytical characteristics of the control of central air conditioning, that interference, adjust the object's properties, humidity correlation, multi-state operation, and converter control and overall control aspects and then, analysis of the central air con...
Post Time:Feb 23,2010 TAG:Electronic machinery
CNC machine tools and error method of research tool
Abstract: CNC machine tools of all kinds of errors and the knife method, a detailed analysis of CNC machine tool setting error sources and the corresponding improvement measures can be taken through these issues, to improve the machining accuracy of CNC machine tools was provided. Keywords: CNC machine tools; on knife point; cutter location poin...
Post Time:Feb 23,2010 TAG:Electronic machinery
Improve the accuracy of the transformation method of CNC machine tools
Abstract: The transformation of CNC machine tools in the machining industry more widely, for the transformation of the characteristics of CNC machine tools were analyzed, and on this basis, the transformation to improve the accuracy of CNC machine tools common to several methods in detail described, the transformation of CNC machine tools has a gu...
Post Time:Feb 23,2010 TAG:Electronic machinery
Information Technology Systems Engineering Safety Management
Abstract: In recent years, due to information system security issues arising from the loss, the growing impact of information systems security issues more and more people's attention, its impact has become an important factor in the development of information technology, however, the traditional post- , passive, single, for the problems in using s...
Post Time:Feb 23,2010 TAG:Electronic machinery
MF-47 Multimeter practice of assembling
Abstract: The multimeter is electrical, electronic instruments necessary, one for each e-learning professional students should be familiar with their works and to use in teaching practice, through MF-47-type multimeter assembly internship requires students to understand multimeter works, master the welding and machine assembly process, to master t...
Post Time:Feb 22,2010 TAG:Electronic machinery
Quality of medical equipment cleaning
Abstract: The quality of cleaning medical devices medical device sterilization effect is to ensure that the necessary and important part of the process. On how to ensure the quality of the medical device cleaning issues in-depth discussion. Keywords: medical equipment; cleaning; quality A reasonable choice of cleaning agent Cleaning agent se...
Post Time:Feb 20,2010 TAG:Electronic machinery
Simple analysis of the spectrum analyzer design
Abstract: Simple spectrum analyzer based on the heterodyne principle, the use of the local oscillation signal and the measured signal mixing method of the theory, can in the 1MHz-30MHz frequency range between the measured signal spectrum analysis, frequency resolution and errors are less than 1KHz. The system has identified AM, FM and other contin...
Post Time:Feb 20,2010 TAG:Electronic machinery
Power system protection and development of the status quo
Abstract: The development of China's electric power system protection technology in the process, a detailed discussion of the future development trend of China's relay With computers, networks and artificial intelligence technology, integrated automation technology to relay bound direction. Keywords: power system; protection; trends 1 Introduc...
Post Time:Feb 20,2010 TAG:Electronic machinery
CNC milling machine in X2012A analysis of the application of transformation
Abstract: China's Daye Steel is a long history of the old steel mills, many are 70 years of milling products. For milling plant renovation project, combined with the Siemens 802D CNC system and control system for milling 6RA70 DC's successful transformation of experience, detailed description of the specific operating processes and programs. for t...
Post Time:Feb 20,2010 TAG:Electronic machinery
Manufacturing enterprises in the recycling of waste electrical and electronic equipment in the analysis of the role of
Abstract: the development of electrical and electronic equipment, to bring social and environmental impact of both the pros and cons. For companies in technology, equipment, personnel of the advantages, difficulties in solving problems in fund-raising proposals, and proposed the establishment of state intervention in the system, use of foreign pol...
Post Time:Feb 20,2010 TAG:Electronic machinery

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