High-precision roughness instrument measures the surface roughness of plastic materials Case sharing [Video demonstration]

Abstract: 文章《高精度粗糙度仪测塑料材质表面粗糙度案例分享【视频演示】》介绍了使用高精度粗糙度仪对塑料材质表面进行粗糙度测量的具体过程。测量前，样品需与粗糙度仪保持水平和垂直平行，测量环境应控制在-20℃至40℃且湿度小于90% RH。测量过程中，选择适当的附件，如曲面传感器和接长杆，确保测量的准确性。粗糙度仪的测量范围为160μm（Z轴）和17.5mm（X轴），采用位移式差动电感原理，示值误差不大于±10%，示值变动性不大于6%。测试结果包括Ra=4.400μm、Rz=18.334μm等多项参数，详细展示了塑料材质表面的粗糙度特征。这些测量数据有助于评估材料的表面质量和适用性。

Measured sample characteristics

Curved plastic material

Before the test

The sample to be tested and the roughness meter should be parallel to the ground in the horizontal and vertical directions.
The measurement process should be carried out on a marble platform or a small platform.
The working environment should control the temperature within the range of - 20°C ~ 40°C, and the humidity should be < 90% RH.
According to sample characteristics and measurement requirements, accessories such as surface sensors, measurement platforms, and extension rods are selected.
In daily storage and transportation, it should be placed in an environment with a temperature of -40°C ~ 60°C and a humidity < 90% RH.
Adjust the needle position to "0" before measuring, and the up and down cannot exceed two divisions.

Roughness meter introduction

Measuring range	Z axis (vertical)	160μm
	X axis (horizontal)	17.5mm
Measurement parameters	Ra Rz==Ry(JIS) Rq Rt==Rma x Rp Rv R3z R3y Rz (JIS) Rs Rsk Rku Rsm Rmr RPc Rk Rpk Rvk Mr1 Mr2
Sampling length (lr)	0.25,0.8,2.5mm
Evaluation length (ln)	Ln= lr×n n=1~5
sensor	Measuring principle	Displacement differential inductance
	Seeker	Carbide, sliding direction radius 40mm
	stylus	Natural diamond, 90 cone angle, 5μm tip radius
Indication error	Not more than ±10%
Indication volatility	Not more than 6%

test

Put the measured part of the workpiece flat, and set the roughness meter on the shelf.
By rotating the screw, make the screw parallel to the surface to be measured.
After adjusting the needle position, press the ESC key to return to the measurement interface.
Press START to start measurement.