null adj. 1.無效力的,無束縛力的。 2.無效的,無用的,無益的;無價值的。 3.沒特征[個性]的,沒表情的。 4.〔罕用語〕不存在的,沒有的;零(位)的;空的。 n. 【數(shù)學(xué)】零,零位;空;【無線電】零訊號,微弱訊號。 a null indicator 零示器;零位指示器。 the null method 衡消法。 null and void 【律】無效;失效(This check is null and void. 本支票無效)。 vt. 使無效。
"misalignment error ", which is caused by misalignment during null test adjustment, together with fabrication errors is shown in test results, and it is important to separate these two errors so that the test results can be used in ccos process . asic software is developed for eliminating nonlinear error and separating misalignment error, and a high accuracy, suitable format data file is generated by asic for further analysis for ccos process 在非球面測量技術(shù)方面,主要針對零位補(bǔ)償檢驗過程中測量坐標(biāo)的“非線性誤差”的形成原因及其補(bǔ)償算法由光學(xué)調(diào)整量引起的測量誤差以及調(diào)整量誤差的擬和方法等問題進(jìn)行了討論,并編制了相應(yīng)的干涉檢驗數(shù)據(jù)處理軟件asic,干涉檢驗結(jié)果經(jīng)分析、處理后能夠滿足ccos的技術(shù)要求并指導(dǎo)加工。