需要金幣:![]() ![]() |
資料包括:完整論文 | ![]() |
![]() |
轉(zhuǎn)換比率:金額 X 10=金幣數(shù)量, 例100元=1000金幣 | 論文字數(shù):10409 | ![]() | |
折扣與優(yōu)惠:團購最低可5折優(yōu)惠 - 了解詳情 | 論文格式:Word格式(*.doc) | ![]() |
摘要:隨著科技的不斷發(fā)展,氣壓計技術也在不斷的進步和創(chuàng)新,氣壓計被廣泛應用于國防領域、工業(yè)領域、醫(yī)療領域以及日常家庭生活中。傳統(tǒng)的水銀氣壓計和無液氣壓計體積比較大,測量結果不夠準確,容易受到周圍環(huán)境的影響,已經(jīng)無法滿足遠距離傳輸以及在惡劣環(huán)境下的操作。因此,數(shù)字氣壓計的出現(xiàn)成為了必然。本文根據(jù)所查閱的文獻資料介紹了基于氣壓傳感器MPX4115的數(shù)字氣壓計。通過利用氣壓傳感器MPX4115獲得與大氣壓相應的模擬電壓值,在經(jīng)過電壓/頻率(V/F)轉(zhuǎn)換模塊轉(zhuǎn)換為數(shù)字脈沖,經(jīng)過一定處理后得到實際的氣壓值。最后由數(shù)碼管電路顯示出來。并且提出了電路的軟硬件設計方案,其中軟件部分利用Proteus軟件實現(xiàn)電路的仿真,用C語言編寫程序?qū)崿F(xiàn)此設計的全部功能。 關鍵詞:氣壓傳感器; 電壓/頻率轉(zhuǎn)換; 單片機
Abstract:With the continuous development of science and technology, barometer technology is also in constant progress and innovation. The barometer has been widely used in the defense sector, industrial sector, the medical field as well as day-to-day family life. Traditional mercury barometer and the aneroid barometer volume is relatively large, the measurement results are not accurate enough, and vulnerable to the influence of the surrounding environment,which has been unable to meet the long-distance transmission and operate in the harsh environment. Therefore, the emergence of the digital barometer has become inevitable.This article has introduced a digital pressure meter which based on the pressure sensor MPX4115. Analog voltage value corresponding to the atmospheric pressure by the pressure MPX4115, after the voltage/frequency (V/F) converter module is converted to digital pulse, after a certain treatment we can find the actual pressure value. Finally, it will be displayed by the digital control circuit. And we made a circuit of hardware and software design solutions in this paragraph. One part of the software is used the Proteus software to meet the circuit simulation program. The whole program is written in C to achieve the full functionality of this design. Key words: Pressure sensor; Voltage / frequency conversion; SCM |