本文選題：紅外熱像儀　切入點：運動參數(shù)分析　出處：《北京交通大學(xué)》2015年碩士論文

【摘要】：當(dāng)前,紅外熱像儀測試系統(tǒng)主要針對可變溫差、等效溫差等方面的研究,關(guān)于整機運動參數(shù)的測試系統(tǒng)絕大多數(shù)的研究仍停留在實驗室階段,本文基于紅外熱像儀的工作原理,研發(fā)一種能夠測量紅外熱像儀運動參數(shù)的設(shè)備,有效的彌補國內(nèi)在這一領(lǐng)域的不足。論文主要研究內(nèi)容如下： 1、對紅外熱像儀的國內(nèi)外現(xiàn)狀進行研究,并根據(jù)紅外熱像儀的發(fā)展對其測試系統(tǒng)的國內(nèi)外現(xiàn)狀進行研究。 2、分析紅外熱像儀的基本工作原理,對紅外熱像儀進行建模,根據(jù)熱像儀的測試要求,提出測試方案,建立測試系統(tǒng)的模型。 3、針對要測量的內(nèi)容,設(shè)計測量方案,選定測量方法并進傳感器的選型。 4、對紅外熱像儀進行力學(xué)分析。對連續(xù)變焦組件和回掃組件進行動力學(xué)分析,推導(dǎo)出拉格朗日方程,得出其運動速度和加速度的關(guān)系,為測試提供了理論基礎(chǔ)；對運動鏡片和回掃片進行模態(tài)分析,為測量時避開共振區(qū)提供依據(jù)；對微掃組件進行動力學(xué)分析,建立動力學(xué)方程,得到固有頻率,進行模態(tài)分析,得其固有頻率,兩者對比確保正確性,同時還對微掃組件的最大弱截面處進行靜力學(xué)分析和仿真分析,計算出應(yīng)力最大值并得到其應(yīng)力云圖,驗證它的可靠性；對滾珠絲杠副的滑塊進行模態(tài)分析,求得其固有頻率,為測量時避開共振區(qū)提供依據(jù),對其最大應(yīng)力處滾珠進行應(yīng)力分析,得到應(yīng)力云圖,驗證其可靠性。 5、明確測試軟件的功能需求,設(shè)計軟件思想和處理流程,并進行總體結(jié)構(gòu)設(shè)計,用c#編程測試軟件,完成界面和功能的實現(xiàn),并進行軟硬件聯(lián)調(diào),完成測試。
[Abstract]:A kind of equipment which can measure the motion parameters of infrared thermal imager is developed, which can effectively make up for the deficiency in this field.The main contents of this thesis are as follows:1. The present situation of infrared thermal imager at home and abroad is studied, and the present situation of its testing system is studied according to the development of infrared thermal imager.2. The basic working principle of the infrared thermal imager is analyzed, and the model of the infrared thermal imager is established. According to the test requirements of the infrared thermal imager, the test scheme is put forward, and the model of the test system is established.3. According to the content to be measured, the measurement scheme is designed, and the selection of measurement method and sensor is selected.4. Mechanical analysis of infrared thermal imager.The dynamic analysis of the continuous zoom assembly and the flyback assembly is carried out, the Lagrange equation is derived, and the relationship between the velocity and the acceleration is obtained, which provides a theoretical basis for the testing.In order to avoid the resonance region, the dynamic analysis of the micro-sweep assembly, the establishment of the dynamic equation, the natural frequency, the modal analysis, and the comparison between the two to ensure the correctness,At the same time, static analysis and simulation analysis of the maximum weak cross section of the micro-sweep assembly are carried out, the maximum stress is calculated and its stress cloud diagram is obtained to verify its reliability, and the natural frequency of the slider of the ball screw pair is obtained by modal analysis.In order to avoid the resonance region, the stress analysis of the ball at the maximum stress is carried out, and the stress cloud diagram is obtained to verify its reliability.5. Make clear the function requirement of the test software, design the software idea and process flow, and carry on the overall structure design, program the test software with c#, complete the realization of the interface and function, and carry on the hardware and software combination, complete the test
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN219;TP274

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本文編號：1725617