| HDCZ-1型跳远测距仪的研制 |
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| 引用本文： | 李长征.HDCZ-1型跳远测距仪的研制[J].河北大学学报(自然科学版),1992(3). |
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| 作者姓名： | 李长征 |
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| 作者单位： | 河北大学体育教研室 |
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| 摘 要： | HDCZ-1型跳远测距仪是根据几何光学原理研制的一种用于跳远、三级跳远测量距离的仪器.它由镜头、屏幕、观察窗、调节系统等部分构成,无需人工设置光源、电源在固定点观察成绩。仪器的测量精度及设置安装均符合国际田联规则规定.
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| 关 键 词： | 焦距 有效面积 |
Type HDCZ-1 Broad Jump Distance-measuring Device |
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| Li Changzheng.Type HDCZ-1 Broad Jump Distance-measuring Device[J].Journal of Hebei University (Natural Science Edition),1992(3). |
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| Authors: | Li Changzheng |
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| Institution: | Group of Physical Education |
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| Abstract: | Type HDCZ-1 Distance-measuring device derigned on the principle of Geometric Optics, Serues as a distance-measuring device, employed is broad jump or dirtance jump, It consists of lens. Screen watch window and adjusting system. Instead of manually set-up light and electric power source, the distance can be read directly from the device fixed on an indicated spot. The device is proved to be up to the related standards, established by International Association of Track and Field. |
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| Keywords: | Focal distance Effective area |
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