實驗一 基本測量
Author
黃雅柔
Last Updated
9 лет назад
License
Creative Commons CC BY 4.0
Abstract
目的:
- 熟悉分析實驗數據的方法,測量並分析誤差。
- 學習有效數的處理。
- 了解螺旋測微器(Micrometer)的操作方式並用以測定微小物體的厚度或直徑等。
- 了解游標尺(Vernier caliper)的操作方式並用以測量塑膠管的深度及內、外徑。
目的:
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\title{實驗一 基本測量} % 實驗名稱
\author{黃雅柔(10413126)} % 組員一的名字與學號, 主筆者擺第一位作者
\affiliation{化學系ㄧ年級} % 組員一的系級
\author{汪函儀(10425154)} % 組員二的名字與學號
\affiliation{化學系ㄧ年級} % 組員二的系級
\begin{abstract}
目的:1. 熟悉分析實驗數據的方法,測量並分析誤差。 \newline
2. 學習有效數的處理。 \newline
3. 了解螺旋測微器(Micrometer)的操作方式並用以測定微小物體的厚度或直徑等。 \newline
4. 了解游標尺(Vernier caliper)的操作方式並用以測量塑膠管的深度及內、外徑。
\end{abstract}
\maketitle
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\section{實驗原理}
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1.有效數:\newline
紀錄實驗數據或計算結果時,要使用準確數加一位估計數。準確數視儀器所能測量的最小單位而定。例如:最小刻度為mm的尺測量出的結果必須記錄到0.1mm。並將其他多餘的位數「四捨六入五取偶」。\newline
2.實驗誤差:\newline
A. 系統誤差:儀器誤差(儀器精度受到限制)\newline
人為誤差(實驗者所造成的)\newline
環境誤差(受到溫度、濕度、氣壓等影響)\newline
B. 隨機誤差:隨機、偶然的誤差,觀測者無法控制之,它是一種機率問題。增加實驗次數再使用統計理論來處理方可得出最接近的「真確值」。\newline
3.統計理論:
\ref{math1.png}
\begin{figure} % 插入圖檔
\includegraphics[width=4cm]{math1.png}
\caption{\label{fig1}光槓桿儀器三角座 }
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\section{實驗儀器}
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光槓桿、米尺、望遠鏡(附十字線)、玻璃板、定位玻璃
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\section{實驗方法與步驟}
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\begin{enumerate}
%步驟一
\item 將光槓桿置於定位玻璃板上,如圖(四)所示,圖內三個圓圈表光槓桿之三個腳。
%步驟二
\item 距光槓桿約1.5公尺處,安置望遠鏡及直尺,記錄光槓桿到米尺之距離D。
\end{enumerate}
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\section{數據分析}
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表\ref{tab1}是用光槓桿方法量測不同數目的紙張所得的數據,... ...
\begin {table}
\caption {用光槓桿量測紙張厚度} \label{tab1}
\begin{center}
\begin{tabular}{ | c | c| c | c | } \hline
紙張張數 & l$_1$(cm) & l$_2$(cm) & $\Delta$ l(cm) \\ \hline
1 & 10.51 & 11.51 & 1.00 \\ \hline
2 & 10.51 & 12.51 & 2.00 \\ \hline
\end{tabular}
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根據表\ref{tab1}的結果,我們將量測厚度對紙張張數作圖,得到圖\ref{fig2}。從線性擬合的斜率可以得到平均一張紙的厚度為 1.0 cm。
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\section{結果與討論}
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從表\ref{tab1}的結果我們知道一張紙的厚度為 1.00 cm。... ...
這個數據和用螺旋測微器得到的結果相比,... ...
實驗結果誤差不大,可見用光槓桿可以準確的量測物體的微小厚度變化。... ...
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