| 打点计时器电源的改进 |
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| 引用本文： | 贾全忠,郝建波. 打点计时器电源的改进[J]. 物理实验, 2002, 22(7): 30-31,33 |
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| 作者姓名： | 贾全忠 郝建波 |
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| 作者单位： | 潍坊科技职业学院,山东,潍坊,261000 |
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| 摘 要： | 根据振荡电路产生不同周期的计时信号，对打点计时器的供电电源进行了改进。改进后，实验者可根据不同的运动速度来选择适宜的打点计时单位，使纸带上的点疏密程度较为合理，从而减少测量误差。
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| 关 键 词： | 电源 打点计时器 打点阻力 测量误差 振荡器 振荡周期 脉冲 中等专业学校 物理实验 |
| 文章编号： | 1005-4642(2002)07-0030-02 |
Improvement on the power supply of bit-by-bit timer |
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| JIA Quan zhong HAO Jian bo. Improvement on the power supply of bit-by-bit timer[J]. Physics Experimentation, 2002, 22(7): 30-31,33 |
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| Authors: | JIA Quan zhong HAO Jian bo |
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| Abstract: | Based on the differnt periodic signal produced by oscillatory circuit, the power supply of bit by bit timer is improved. Using the improved timer, the operator can choose the suitable time unit according to the different velocity of motion so as to make the desnity of the spots on the paper reasonable, thus the measurement error is reduced. |
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| Keywords: | bit by bit timer striking resistance measurement error oscillator oscillation period impulse |
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