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Hitachi LMG6911RPBC-E

# LMG6911RPBC-E Hitachi LMG6911RPBC-E New LMG6911RPBC KOE 5.7 inch LCM 320×240 6:1 Monochrome CCFL Parallel Data, LMG6911RPBC-E pictures, LMG6911RPBC-E price, #LMG6911RPBC-E supplier ------------------------------------------------------------------- Email: sales@shunlongwei.com https://www.slw-ele.com/lmg6911rpbc-e.html ------------------------------------------------------------------- Panel Brand:  HITACHI Panel Model : LMG6911RPBC   Panel Size : 5.7 inch Panel Type STN- LCD , LCM  Resolution: 320×240 , Q VGA   Pixel Format Rectangle Display Area: 115.17(W)×86.37(H) mm Bezel Opening 122.0(W)×90.0(H) mm Outline Size 167.1(W)×109(H) mm Brightness - Contrast Ratio 6:1 (Typ.) (TM)     Viewing Angle - Display Mode STN, Blue mode (Negative), Transmissive  IP

How to prevent deformation during slow wire processing

 Slow-moving wire processing is a very exquisite and exquisite craft, and sufficient preparations need to be made, so that the processed products can be more quality. The slow-moving wire processing technology has a wide range of applications and is a must in our industries. If you want to do better with less technology, you must master all aspects of the processing knowledge. For example, the most common thing is the deformation during processing.  How can we solve it How to prevent deformation during slow wire processing Speaking of slow wire processing, it uses continuously moving fine metal wires as electrodes. Pulse spark discharge is performed on the workpiece, where it generates a high temperature above 6000 degrees. Moreover, if it wants to improve its quality problems and prevent its deformation, it can firstly start from the following aspects. 1. To prevent deformation, it is impossible for the material to have no internal stress. In particular, the internal stress of the que

What are the advantages of CNC machining of radiator parts?

For friends who have been in contact with the radiator component industry, they often see or hear "CNC machining", but too much exposure does not necessarily mean that many people understand. In fact, many questions are still about CNC machining. What are the advantages? Let's take a closer look. CNC machining is an index-controlled machine tool machining, which is a method of using digital information to control the machining process. Traditional mechanical processing is done manually by machine tools. During processing, the mechanical cutter is shaken to cut metal, and the accuracy is measured with calipers and other tools. However, traditional artificial intelligence processing is far from being able to meet the needs of production development. Therefore, the emergence of CNC machining provides the possibility for the standardization, precision and efficiency of mechanical product processing. The CNC machining process in the radiator component industry also shines. The

Used for intelligent fault-tolerant semi-physical simulation experiment of engine control system

 

Construction and debugging of semi-physical closed-loop control system. This paper first established a component-level real-time model of a certain type of turboshaft engine, and then used this real-time model to form a closed-loop system on a mechanical hydraulic fuel regulation system. This experiment was carried out on the turboshaft engine semi-physical simulation experiment platform of 608 Institute. The experimental device is shown in Figure 2. The engine digital simulator is equipped with a real-time component-level model of a turboshaft engine. According to the position of the load rod (given by the potentiometer outside the experimental device) and the fuel flow rate Gfu, the gas generator speed N and power turbine speed are calculated from the model. N. The static pressure P and N at the outlet of the compressor are sent to the control cabinet through the AD channel output speed signal to drive the motor 1 and the motor 2 respectively; and the output pressure P electrical signal is converted into a pressure signal through electrical conversion, and the pressure signal after passing through the voltage divider The pressure is P′ and is sent to the fuel control system. The automatic fuel controller controls the N speed to maintain a constant speed by reflecting the fuel-air ratio G’. Since the numerical control system of the turboshaft engine is still under development, this experiment uses a hydraulic-mechanical fuel control system instead.

This article first conducted an open-loop acceleration and deceleration test. After a preliminary assessment of the system’s work, the closed loop can be cut into the closed loop only by making the fuel flow at the starting point approximately the same. During the closed-loop experiment, the strong fuel oscillation was caused when the load rod was pushed, so that the system could not work normally. After analyzing the experimental results, the following methods were adopted: (1) Increase the resistance of the fuel regulator: semi-physical simulation research on the intelligent fault tolerance technology of the engine numerical control system, reduce the magnification; (2) increase the interrupt timing program, and Simplify the real-time graphical interface, all curves and digital quantities are displayed in the simplest way, and the interface is convenient and friendly. *The problem of fuel oscillation has been solved afterwards. It should be noted that the same oscillation phenomenon occurred during the bench test of this system together with the engine, which was also solved by increasing the damping and reducing the magnification. The results of the semi-physical simulation experiment of the engine control system show that the results of the semi-physical simulation experiment are consistent with the bench test phenomenon of the turboshaft engine. The system can be used in the intelligent fault-tolerant semi-physical simulation experiment of the engine control system.

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