1) profile roughness tester
粗糙度轮廓度仪
3) portable surface roughness and profile tester
便携式表面粗糙度轮廓仪
1.
The working principle and designing characterastics of a portable surface roughness and profile tester are introduced,the focus of analysis is the working principle and structure of the mono-coil inductive sensor used on the tester.
论述了便携式表面粗糙度轮廓仪的工作原理及设计特点。
4) Fracture section contour roughness
剖面轮廓线粗糙度
5) roughness instrument
粗糙度仪
1.
Research of measurements of frequency and transmission characteristics for piezoelectricity roughness instrument and its sensors;
压电粗糙度仪及其传感器频率与传输特性测量方法研究
补充资料：中美粗糙度对照
以下是ISO规定的粗糙度数值及其等级表，美国ANSI的数值及其等级与其相同。
粗糙度数值Ra .... .粗糙度等级数 .... 粗糙度数值Ra .... 粗糙度等级数
μm（微米).μin（微英寸）..... ......μm（微米）.μin（微英寸）
50 ...... 2000 .....N12 ............0.8 ...... 32 ...... N6
25 ...... 1000 .....N11.............0.4 ...... 16 ...... N5
12.5.....500 ......N10.............0.2 ...... 8 ....... N4
6.3......250 ......N9..............0.1 ...... 4 ....... N3
3.2......125 ......N8..............0.05 ..... 2 ....... N2
1.6......63 .......N7..............0.025 .... 1 ....... N1
粗糙度数值Ra .... .粗糙度等级数 .... 粗糙度数值Ra .... 粗糙度等级数
μm（微米).μin（微英寸）..... ......μm（微米）.μin（微英寸）
50 ...... 2000 .....N12 ............0.8 ...... 32 ...... N6
25 ...... 1000 .....N11.............0.4 ...... 16 ...... N5
12.5.....500 ......N10.............0.2 ...... 8 ....... N4
6.3......250 ......N9..............0.1 ...... 4 ....... N3
3.2......125 ......N8..............0.05 ..... 2 ....... N2
1.6......63 .......N7..............0.025 .... 1 ....... N1
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条