本文選題：脊髓打擊器　切入點：打擊力測量　出處：《北方工業(yè)大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：脊髓是脊椎類動物神經(jīng)中樞的一部分,用來傳導(dǎo)、反射,四肢、體壁和內(nèi)臟的感覺沖動,同時維持人的運動功能,調(diào)節(jié)人的生理反應(yīng)。在現(xiàn)實生活當中,撞擊和擠壓等多種原因都有可能導(dǎo)致脊髓的橫慣性損害,這種損害能夠造成損傷平面以下脊髓神經(jīng)功能障礙,繼而引發(fā)嚴重的肢體殘疾。隨著這種脊髓損傷發(fā)病率的逐年上升,對脊髓損傷的藥理和治療效果的研究越來越重視。制備大量的、標準的動物脊髓損傷模型是進行脊髓損傷深入研究的前提。 本文在步進電機控制技術(shù)以及傳感器檢測技術(shù)的基礎(chǔ)上,采用PLC編程、理論計算和MATLAB擬合的方法,設(shè)計了一套脊髓打擊裝置,實現(xiàn)了打擊平臺的精準定位、位置信息的實時檢測,打擊力的測量以及數(shù)據(jù)的采集和分析。主要研究內(nèi)容如下： 首先,對三維可移動打擊平臺的精準定位進行了研究。通過步進電機細分和絕對編碼器檢測的方法,使步進電機的理論定位精度達到0.0078125mm、定位誤差降至0.005mm；實現(xiàn)了平臺回歸參考點的功能,并通過觸摸屏實時顯示打擊平臺的狀態(tài)信息。 其次,對打擊力的測量方法進行了研究,通過對打擊過程的物理分析得到打擊力的理論范圍,并根據(jù)這一范圍選擇適合本系統(tǒng)的測力傳感器,設(shè)計出集打擊與打擊力測量于一體的打擊錘,實現(xiàn)了打擊力的測量。 再次,針對打擊力與打擊時間的測量設(shè)計實驗。進行不同打擊高度的實驗,打擊波形信息的獲取和分析。 最后,提取多組信號上的數(shù)據(jù)點,通過MATLAB的函數(shù)算法得到不同高度下最具有代表性的打擊力隨時間變化的關(guān)系曲線和等效打擊力,可以根據(jù)這一結(jié)論,來制作不同損傷程度的脊髓損傷模型。研究工作對脊髓打擊裝置的設(shè)計、打擊力的標定以及脊髓損傷模型的分類提供參考。
[Abstract]:The spinal cord is a part of the nerve center of a vertebrate that conducts, reflexes, limbs, body walls and visceral impulses, while maintaining human motor function and regulating human physiological responses. The damage of transverse inertia of spinal cord can be caused by impingement and compression, which can cause spinal cord neurological dysfunction below the level of injury, and then lead to severe limb disability. As the incidence of this kind of spinal cord injury increases year by year, More and more attention has been paid to the pharmacological and therapeutic effects of spinal cord injury (sci). The preparation of a large number of standard animal spinal cord injury models is a prerequisite for further research on spinal cord injury. On the basis of stepping motor control technology and sensor detection technology, a set of spinal cord strike device is designed by using PLC programming, theoretical calculation and MATLAB fitting method, and the precise positioning of the strike platform is realized. Position information real-time detection, impact force measurement and data acquisition and analysis. The main research contents are as follows:. Firstly, the precise positioning of 3D movable strike platform is studied. The method of step motor subdivision and absolute encoder detection is used. The theoretical positioning accuracy of stepping motor is 0.0078125mm, the positioning error is reduced to 0.005mm, the function of platform regression reference point is realized, and the state information of attacking platform is displayed in real time through touch screen. Secondly, the measurement method of the impact force is studied, and the theoretical range of the impact force is obtained by physical analysis of the hitting process, and the force sensor suitable for the system is selected according to this range. A hammer is designed to measure the impact force. Thirdly, the experiment is designed to measure the strike force and time. The experiment of different strike height is carried out to obtain and analyze the information of the strike wave. Finally, the data points are extracted from multiple sets of signals, and the most representative relation curve and equivalent impact force are obtained under different height by MATLAB's function algorithm, according to this conclusion. The research provides a reference for the design of the spinal cord strike device, the calibration of the impact force and the classification of the spinal cord injury model.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：R651.2

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