重力傳感器水平度測量儀原理分析
時(shí)間:2008-11-17 16:41:00來源:ronggang
導(dǎo)語:?文中介紹了利用重力傳感器測量平臺(tái)傾斜度的工作原理和計(jì)算方法,并以艦船錨泊時(shí)平臺(tái)水平度誤差的解算數(shù)學(xué)模型為例,分析了艦艇縱橫搖對(duì)水平度測量的影響,以此來闡述重力傳感器水平度測量儀的測量計(jì)算方法
摘 要:隨著現(xiàn)代科技的發(fā)展,人們對(duì)于各種基座平臺(tái)的水平度精度要求越來越高,而現(xiàn)有光學(xué)象限儀已不能完全滿足基座平臺(tái)水平度的檢測,特別是一些艦船(例如軍用艦艇)上的基座平臺(tái),對(duì)于水平度精度的要求很高。文中介紹了利用重力傳感器測量平臺(tái)傾斜度的工作原理和計(jì)算方法,并以艦船錨泊時(shí)平臺(tái)水平度誤差的解算數(shù)學(xué)模型為例,分析了艦艇縱橫搖對(duì)水平度測量的影響,以此來闡述重力傳感器水平度測量儀的測量計(jì)算方法。
關(guān)鍵詞:水平度;重力傳感器;縱橫搖;傾角誤差
Abstract: With the development of modern science, all kinds of pedestal platforms must be more precise . However, in the gradienter checking, the capability of the current optics quadrant instruments can not adapt to some of the pedestal platforms entirely, especially to some pedestal platforms on the ships (such as: naval ships). Firstly, the principle and the calculation method of the gravity accelerometer were introduced in this article. Then, an example based on the error computational model of the platform’s gradienter checking was detailedly introduced in order to analyze the effect of the ship’s vibration in plat’s gradienter checking.
Key words: gradienter; gravity sensor; freely sway in length and breadth;the error of the obliquity
一 概述
現(xiàn)代裝備對(duì)一些特定系統(tǒng)所在平臺(tái)的水平度精度要求較高,精確測量各平臺(tái)的水平度也就顯得至關(guān)重要[1]。傳統(tǒng)的檢查與規(guī)正是利用光學(xué)象限儀進(jìn)行平臺(tái)水平度的檢測,由人工讀數(shù)完成,檢測方法繁瑣、讀數(shù)困難、精度難以保證,而且光學(xué)象限儀只有在多次多方位測量后方能綜合給出傾斜平臺(tái)的傾斜角度[2],這對(duì)檢測平臺(tái)或?qū)崟r(shí)控制水平的場合是一個(gè)致命弱點(diǎn)。而利用重力傳感器水平測量儀可使測量精度達(dá)到0.002弧度,還可通過預(yù)先編程、多個(gè)傳感器測量平臺(tái)不同方向,一次性得出平臺(tái)與基準(zhǔn)面之間的面夾角及面夾角的方向。這種測量方法極大的方便了平臺(tái)平面的調(diào)整。文中詳述了利用重力傳感器測量水平度的原理,并以艦艇縱橫搖對(duì)平臺(tái)水平度測量的影響為例來闡述測量方法。
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重力傳感器水平度測量儀原理分析