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Test-KEY

  • 基于msp430單片機的便攜式數字傾角儀的研制

    介紹了一種基于MSP430系列單片機和ADXL203加速度傳感器的數字式傾角儀,它不僅可以實現水平度檢測,而且可以測量00~3600范圍內的任意傾角,分辨率可達O.1。。此外,由于該傾角儀輸出為數字結果,因此它也可以與其他的數字設備結合起來,組合成一個功能更加強大的儀器。該數字傾角儀可廣泛應用于建筑、機械、道路、橋梁、石油、煤礦和地質勘探等各種需要測量重力參考系下傾角的場合。關鍵詞:MSP430F133單片機;力敏傳感器;ADXL203加速度計;角度測量 Abstract:This paper presents a new style digital inclinometer which is developed on the basis of the MSP430F133 MCU and the ADXL203 dual axis aeeelerometer.This inclinometer not only can test levelness,but also can measure any angle between 0。and 360。with an accuracy of 0.1 O.In addition,its output is a digital result,which makes it possible to integrate itself with other digital devices to form a more functional unit.This inclinometer can be widely used in any construction site,oil field,coal-mine or geologic survey and SO on where it will provide the working people with convenience to measure any angles.Key words:MSP430F133 MCU;force sensor;ADXL203 accelerometer;angle measurement

    標簽: msp 430 單片機 便攜式

    上傳時間: 2013-11-14

    上傳用戶:lizhizheng88

  • 基于Multisim 10的矩形波信號發生器仿真與實現

    在Multisim 10軟件環境下,設計一種由運算放大器構成的精確可控矩形波信號發生器,結合系統電路原理圖重點闡述了各參數指標的實現與測試方法。通過改變RC電路的電容充、放電路徑和時間常數實現了占空比和頻率的調節,通過多路開關投入不同數值的電容實現了頻段的調節,通過電壓取樣和同相放大電路實現了輸出電壓幅值的調節并提高了電路的帶負載能力,可作為頻率和幅值可調的方波信號發生器。Multisim 10仿真分析及應用電路測試結果表明,電路性能指標達到了設計要求。 Abstract:  Based on Multisim 10, this paper designed a kind of rectangular-wave signal generator which could be controlled exactly composed of operational amplifier, the key point was how to implement and test the parameter indicators based on the circuit diagram. The duty and the frequency were adjusted by changing the time constant and the way of charging and discharging of the capacitor, the width of frequency was adjusted by using different capacitors provided with multiple switch, the amplitude of output voltage was adjusted by sampling voltage and using in-phase amplifier circuit,the ability of driving loads was raised, the circuit can be used as squarewave signal generator whose frequency and amplitude can be adjusted. The final simulation results of Multisim 10 and the tests of applicable circuit show that the performance indicators of the circuit meets the design requirements.

    標簽: Multisim 矩形波 信號發生器 仿真

    上傳時間: 2014-01-21

    上傳用戶:shen007yue

  • des加密算法的增強版key的長度比以前多

    des加密算法的增強版key的長度比以前多

    標簽: des key 加密算法 長度

    上傳時間: 2015-01-05

    上傳用戶:417313137

  • MMI spec Key sequence define

    MMI spec Key sequence define

    標簽: sequence define spec MMI

    上傳時間: 2013-12-15

    上傳用戶:lacsx

  • 在J2ME游戲中仿真Key Repeat事件, 但對于手機這種小設備來說,連續按鍵很吃力, 這里提供連續按鍵的一種方便機制

    在J2ME游戲中仿真Key Repeat事件, 但對于手機這種小設備來說,連續按鍵很吃力, 這里提供連續按鍵的一種方便機制

    標簽: Repeat J2ME Key 按鍵

    上傳時間: 2015-01-07

    上傳用戶:sclyutian

  • 使用crypt api創建一個會話密鑰。 在這個例子中使用了一個168位的3DES key

    使用crypt api創建一個會話密鑰。 在這個例子中使用了一個168位的3DES key

    標簽: crypt 3DES api 168

    上傳時間: 2015-01-14

    上傳用戶:851197153

  • test program for STL generic algorithm that search for elements that satisfy a condition

    test program for STL generic algorithm that search for elements that satisfy a condition

    標簽: that for algorithm condition

    上傳時間: 2013-12-14

    上傳用戶:咔樂塢

  • aw - test-driven development by example.rar

    aw - test-driven development by example.rar

    標簽: test-driven development example

    上傳時間: 2014-01-10

    上傳用戶:stvnash

  • test SNMP JAVA

    test SNMP JAVA

    標簽: test SNMP JAVA

    上傳時間: 2015-01-21

    上傳用戶:qilin

  • java test program

    java test program

    標簽: program java test

    上傳時間: 2015-01-23

    上傳用戶:Andy123456

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