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This paper described the working principle of electronic balance by proposing a MSP430-based design of the strain gauge electronic balance. By introducing the passive filter network circuit to process the sensor output signal and adopting high-precision 24 A/D converter chip CS5532 to convert collected weighing data, the reliability of the input signals to be processed is increased. The combination...
With the rapid development of information industry and the improvement of information security requirements, the research on the technology of hard disk destruction device becomes more and more important. In view of the shortcomings of current destruction technology: poor safety, high cost, heavy pollution and so on, a new method for hard disk destruction based on microwave technology was put forward...
Based on the computational fluid dynamics (CFD) technology, the modeling and simulation of multiphase flow in an iron-making blast furnace (BF) with pulverized coal injection (PCI) is developed. In the simulations, many physical parameters of phases are visualized under different rate of PCI, showing the inner state of BF. Including the gas, solid, liquid and powder, four phases are considered with...
The hardware of a real-time data acquisition system for infrared drying fruits and vegetables is designed. The hardware system includes a strain gauge mass transducer, two AD590 temperature sensors, a PCI8310 data acquisition board and corresponding circuits. The mass sensor with strain resistances is fixed on a support beam which is outside of drying chamber, thus the temperature of mass sensor elastomer...
Methane does enormously harm to people and safety production in coal mine. A new infrared methane detecting system based on support vector machines is illustrated in the paper. Methane concentration is detected by using the infrared absorption principle. Optics structure that could compensate to power source anti-jamming, mismatch of the detectors, gas cell material's absorption, and dust's influence...
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