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发表于 2008-05-29 08:16
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回复: 计量认证 审查认可知识问答
表2 包括SI辅助单位在内的具有专门名称的SI导出单位ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾量的名称ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| SI导出单位ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 名称ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 符号ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 用SI基本单位和SI导出单位表示ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| [平面]角ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 弧度ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| radÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1 rad=1 m/m=1ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 立体角ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 球面度ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| SrÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1 sr=1 m2/m2=1ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 频率ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 赫[兹]ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| HzÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1=Hz=1 s-1ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 力ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 牛[顿]ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| NÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1 N=1kg·m/s2ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 压力、压强,应力ÔÊ
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| 帕[斯卡]ÔÊ
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| PaÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1 Pa=1 N/m2ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 能[量],功,热量ÔÊ
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| 焦[耳]ÔÊ
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| JÔÊ
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| 1J=1 N·mÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 功率,辐[射能]通量ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 瓦[特]ÔÊ
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| WÔÊ
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| 1W=1J/sÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 电荷[量]ÔÊ
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| 库[仑]ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| CÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1C-1A·sÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 电压,电动势,电位(电势)ÔÊ
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| 伏[特]ÔÊ
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| VÔÊ
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| 1V=1W/AÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 电容ÔÊ
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| 法[拉]ÔÊ
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| FÔÊ
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| 1F= 1C/VÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 电阻ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 欧[姆]ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| ΩÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1Ω=1V/AÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 电导ÔÊ
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| 西[门子]ÔÊ
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| SÔÊ
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| 1S=1Ω-1ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 磁通[量]ÔÊ
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| 韦[伯]ÔÊ
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| WbÔÊ
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| 1 Wb=1V·sÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 磁通[量]密度,磁感应强度ÔÊ
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| 特[斯拉]ÔÊ
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| TÔÊ
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| 1T=1Wb/m2ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 电感ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 亨[利]ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| HÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1H=1Wb/AÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 摄氏温度ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 摄氏度ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| ℃ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1℃=1KÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 光通量ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 流[明]ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1mÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
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| 1 1m=1 cd·srÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| [光]照度ÔÊ
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| 勒[克斯]ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1xÔÊ
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| 1 1x=1 1m/m2ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| [放射性]活度ÔÊ
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| 贝克[勒尔]ÔÊ
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| BqÔÊ
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| 1 Bq=1 s-1ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 吸收剂量比授[予]能比释动能比释动能ÔÊ
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| 戈[瑞]ÔÊ
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| GyÔÊ
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| 1 Gy=1 J/kgÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 剂量当量ÔÊ
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| 希[沃特]ÔÊ
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| SvÔÊ
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| 1Sv=1 J/kg ÔÊ
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|
ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ 用SI基本单位和具有专门名称的SI-导出单位或(和)SI辅助单位以代数形式表示的单位称为组合形式的SI导出单位。ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ 3)SI倍数和分数单位ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ 在国际单位制中,SI基本单位,具有专门名称导出单位,以及直接由它们构成的组合形式的导出单位,都称为SI单位,是量的主单位。而这些主单位量值的大小,不一定非常适合科学、工程和商贸领域的实际需要。因此,国际单位制规定可在SI单位之前加上SI词头(如表3),构成大小不同的lO进倍数单位和分数单位,如长度单位m的倍数单位有km,Mm,Gm等,分数单位有cm,mmυn等二ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾但在实际应用中,不能把国际单位制单位和SI单位划等号,两者在含义上有区别。国际单位制单位包含了这个单位制中所有单位,但SI单位是国际单位制中的一部分单位,它们都不带SI词头(即系数为l,质量单位kg除外)。带词头后形成的倍数单位和分数单位。ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾(系数不是1)称为SI单位的lO进倍数和分数单位。ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ SI词头和SI单位构成SI倍数单位或分数单位,因而,SI词头是SI单位的倍数单位或分数单位的一部分。它不是单位的本身,而是代表lO的不同指数大小。所以它们不能单独使用,只有在单位符号之前才有意义,而且不能使用重迭的词头。例如:把词头k加在基本单位m的前面就构成km(10的三次方米),但不能构成m/an(应写成nm)。km,nil]分别是m这个SI基本单位的倍数单位和分数单位。ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾表3 SI词头ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾因数ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 词头名称ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 符号ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 英文ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 中文ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1024ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
1021ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
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1018ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ 我国法定计量单位是建立在国际单位制基础上的计量制度。国际单位制是我国法定计量单位的主体,所有国际单位制的单位都是我国法定计量单位。ÔÊ
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| 单位名称ÔÊ
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| 与SI单位的关系ÔÊ
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| 1r/min=(1/60)s-1ÔÊ
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| 长度ÔÊ
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| 海里ÔÊ
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| n mileÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1n mile=1852m(只用于航行)ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 速度ÔÊ
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| 节ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| knÔÊ
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| 1kn=1n mile/h=(1852/3600)m/s(只用地航行)ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 能ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 电子伏ÔÊ
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| eVÔÊ
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| 1eV-1.602177*10-19JÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 级差ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 分贝ÔÊ
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| dBÔÊ
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| ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 线密度ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 特[克斯]ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| texÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 1tex=10-6kg/mÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
| 面积ÔÊ
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| 公顷ÔÊ
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| Hm2ÔÊ
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| 1 hm2=104m2ÔÊ
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|
ÔÊ
)ÙHÿ_bbs.3c3t.com,qçòoÔ¾ 根据国家规定,非法定计量单位只允许在少数特殊领域使用:如国际新闻、古籍和文学书籍、出口商品、个别科技领域等。ÔÊ
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)ÙHÿ_bbs.3c3t.com,qçòoÔ¾
|