發(fā)布時(shí)間：2018-12-15 11:48

【摘要】：隨著航空航天工業(yè)的迅猛發(fā)展，高精度氣體減壓閥在航空航天領(lǐng)域的發(fā)展越來(lái)越迅速，怎樣衡量一款高精度氣體減壓閥的各項(xiàng)參數(shù)性能指標(biāo)是否達(dá)到要求，成為研發(fā)人員和測(cè)試人員的首要任務(wù)之一。以往的高精度氣體減壓閥測(cè)試系統(tǒng)大多基于機(jī)械化的儀表和科研人員的手動(dòng)操作，人為誤差大，過(guò)程繁瑣，耗費(fèi)較多的人力物力。 本文意在設(shè)計(jì)一款基于傳感器系統(tǒng)的減壓閥智能監(jiān)控測(cè)試系統(tǒng)對(duì)高精度氣體減壓閥的各項(xiàng)參數(shù)指標(biāo)進(jìn)行監(jiān)控。利用對(duì)氣體減壓閥性能參數(shù)指標(biāo)的理解，制定了科學(xué)的試驗(yàn)規(guī)范流程，符合國(guó)內(nèi)國(guó)外對(duì)減壓閥性能指標(biāo)測(cè)試的標(biāo)準(zhǔn)�？蛇x擇系統(tǒng)在全自動(dòng)和半自動(dòng)的工作模式下操作，節(jié)約人力成本。 根據(jù)高精度氣體減壓閥的性能要求，研究高精度氣體減壓閥監(jiān)控測(cè)試內(nèi)容。選取可靠性高的傳感器系統(tǒng)，配合高速率的數(shù)據(jù)采集模塊、模擬信號(hào)發(fā)生模塊。數(shù)字信號(hào)發(fā)生模塊，利用RS485工業(yè)控制總線搭建測(cè)試系統(tǒng)硬件，對(duì)大量數(shù)據(jù)進(jìn)行實(shí)時(shí)采集。編寫(xiě)了智能化的上位機(jī)數(shù)據(jù)采集處理軟件，軟件采用C++語(yǔ)言，基于Microsoft Visual C++6.0開(kāi)發(fā)平臺(tái)設(shè)計(jì)，對(duì)生成的數(shù)據(jù)進(jìn)行立體化存儲(chǔ)，，結(jié)合Access數(shù)據(jù)庫(kù)技術(shù)，完成對(duì)數(shù)據(jù)采集的控制，試驗(yàn)自動(dòng)生成數(shù)據(jù)記錄文件，提供歷史記錄查詢�？梢詫�(shí)時(shí)測(cè)量和模擬環(huán)境溫度濕度對(duì)試驗(yàn)結(jié)果的影響。界面友好自動(dòng)化程度高。
[Abstract]:With the rapid development of aerospace industry, the development of high-precision gas pressure reducing valve in aerospace field is more and more rapid. How to measure the performance index of each parameter of a high-precision gas pressure reducing valve to meet the requirements? Become one of the most important tasks for R & D and testers. In the past, the test system of high precision gas pressure reducing valve was mostly based on the mechanized instrument and manual operation of scientific research personnel. The artificial error was large, the process was tedious, and more manpower and material resources were consumed. The purpose of this paper is to design an intelligent monitoring and testing system of pressure reducing valve based on sensor system to monitor the parameters of high precision gas pressure reducing valve. Based on the understanding of the performance parameters of the gas pressure reducing valve, a scientific test procedure is established, which conforms to the domestic and foreign standards for testing the performance index of the pressure reducing valve. Optional system in the automatic and semi-automatic mode of operation, save labor costs. According to the performance requirements of high precision gas pressure reducing valve, the monitoring and testing content of high precision gas pressure reducing valve is studied. The sensor system with high reliability and data acquisition module with high speed are selected to simulate signal generation. The digital signal generating module uses RS485 industrial control bus to set up the hardware of the test system and collects a lot of data in real time. The intelligent data acquisition and processing software of upper computer is written. The software adopts C language and is designed based on Microsoft Visual C 6.0 development platform. The generated data is stored in three dimensions, and the control of data acquisition is completed by combining with Access database technology. The test automatically generates the data record file, provides the history record inquiry. The effect of ambient temperature and humidity on the test results can be measured and simulated in real time. Friendly interface automation is high.
【學(xué)位授予單位】：哈爾濱理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH134;TP274

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