本文選題：活塞式 + 壓力傳感器　； 參考：《合肥工業(yè)大學(xué)》2017年碩士論文

【摘要】：大海作為地球生命的發(fā)源地,蘊(yùn)藏著極其豐富的金屬、油氣和魚類等自然資源,是人類可持續(xù)發(fā)展的重要支柱。隨著人口、環(huán)境、資源等全球問題的不斷惡化,為尋求長久的生存發(fā)展,各國紛紛制定海洋戰(zhàn)略,爭奪海洋資源。海底環(huán)境復(fù)雜,海底大壓力是海洋開發(fā)面對的重要問題。高精度的壓力檢測裝置是深海壓力測量和海底考察的前提。大量程壓力傳感器,對微小壓力測量精度較低,為解決這一矛盾,課題組依托國家自然科學(xué)基金項(xiàng)目“深海環(huán)境下傳感器壓力平衡及壓力探測的研究(No.51279044)”設(shè)計(jì)了活塞式深海壓力傳感器。本文主要對傳感器的控制部分進(jìn)行研究。本文首先對傳感器平臺進(jìn)行了介紹,為驗(yàn)證活塞式壓力傳感器能夠?qū)崿F(xiàn)大壓力與微小壓力測量,在整體上對傳感器控制系統(tǒng)進(jìn)行了設(shè)計(jì);系統(tǒng)擇STM32作為主控器,采用LabVIEW上位機(jī)與uC/OS-Ⅱ?qū)崟r(shí)操作系統(tǒng)相結(jié)合的方式,實(shí)現(xiàn)對壓力數(shù)據(jù)顯示存儲及對壓力模擬和壓力平衡的控制。完成控制系統(tǒng)的總體設(shè)計(jì)后,根據(jù)傳感器各組成部分實(shí)際物理參數(shù)建立AMEsim仿真模型,對傳感器特性進(jìn)行仿真研究,從理論上證明傳感器工作原理的可行性。仿真實(shí)驗(yàn)表明系統(tǒng)響應(yīng)迅速、對壓力跟蹤能力較好、壓力與活塞位移呈線性、傳感器能夠滿足對大壓力與微小壓力變化的測量;對大壓力與微小壓力仿真表明,在4Mpa壓力下最大誤差為0.00127Mpa,在0.01Mpa壓力波動下,最大誤差為1.64×10~(-4)Mpa。為實(shí)現(xiàn)壓力模擬與壓力平衡的精確控制,提高系統(tǒng)的實(shí)時(shí)性,研制了系統(tǒng)硬件電路和實(shí)時(shí)操作系統(tǒng)的移植。根據(jù)任務(wù)的重要程度進(jìn)行了任務(wù)劃分和優(yōu)先級分配,實(shí)現(xiàn)壓力測量、壓力模擬、壓力平衡以及上位機(jī)與下位機(jī)通信。在系統(tǒng)硬件電路和軟件調(diào)試無誤后,進(jìn)行實(shí)驗(yàn)。通過壓力模擬實(shí)驗(yàn)得到壓力隨時(shí)間變化關(guān)系,為后續(xù)傳感器的標(biāo)定提供依據(jù);通過壓力平衡實(shí)驗(yàn),證明活塞式深海壓力傳感器能實(shí)現(xiàn)大水壓與微小水壓的測量。
[Abstract]:As the birthplace of life on earth, the sea is rich in metals, oil, gas, fish and other natural resources, which is an important pillar of human sustainable development. With the deterioration of global problems, such as population, environment, resources and so on, in order to seek long-term survival and development, many countries have formulated marine strategies and competed for marine resources. The sea floor environment is complex, the sea bottom big pressure is the important question which the ocean development faces. High precision pressure detection device is the premise of deep sea pressure measurement and submarine exploration. In order to solve this contradiction, a large number of range pressure sensors have low accuracy in measuring micro pressure. Based on the project of National Natural Science Foundation of China, "Research on pressure balance and pressure detection of sensors in deep-sea environment", a piston type deep-sea pressure sensor is designed by the research group no. 51279044. In this paper, the control part of the sensor is studied. Firstly, the sensor platform is introduced in this paper. In order to verify that the piston pressure sensor can realize the measurement of large pressure and small pressure, the sensor control system is designed as a whole, and the system chooses STM32 as the main controller. The LabVIEW host computer and the uc / OS- 鈪，

本文編號：1794851