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Surface Roughness Tester
A portable surface roughness tester is a specialized instrument used to measure and quantify the roughness of a surface. It provides numerical values and graphical representations of the texture and irregularities present on a surface. The tester typically uses a stylus or probe to scan the surface and collect data, which is then analyzed to determine parameters such as Ra (average roughness), Rz (mean peak-to-valley height), and other surface roughness parameters. Surface Roughness Testers are commonly used in industries such as manufacturing, automotive, aerospace, and engineering to ensure the quality and functionality of surfaces.

Types of Surface Roughness Tester
SR160 Surface Roughness Tester
The SR160 Portable Roughness Tester represents the latest in compact, handheld surface roughness testing technology. It boasts features such as precise measurement capabilities, an extensive range of measurement, user-friendly operation, convenient portability, and reliable performance.

SR180 Surface Roughness Tester
Equipped with a high-capacity lithium-ion battery and an advanced charging control circuit, this device ensures over 15 hours of uninterrupted operation without suffering from memory effect. Its aluminum mold construction not only enhances durability but also significantly improves resistance to electromagnetic interference.

SR210 Surface Roughness Tester
The SR210 Surface Roughness Tester boasts a broad testing range, precise measurements, stable performance, and user-friendly operation, along with data storage capabilities. It features an OLED display for enhanced visibility.

SR220 Surface Roughness Tester
The SR220 Surface Roughness Tester features 20 roughness parameters and utilizes a DSP chip for control and data processing, ensuring high-speed operation and low power consumption.

SR300 Surface Roughness Tester
Our company has developed a new product, the SSR300+ roughness waviness tester, designed to characterize the surface structure of machined components.

What Are The Different Parameters Used To Quantify Surface Roughness?
Ra (Average Roughness)
Ra represents the arithmetic average of the absolute values of the surface deviations from the mean line within the sampling length. It provides an overall measure of the roughness of the surface.

Rz (Mean Peak-to-Valley Height)
Rz measures the average distance between the highest peak and the lowest valley within the sampling length. It offers insights into the differences in elevation across the surface.

Rq (Root Mean Square Roughness)
Rq calculates the root mean square of the surface deviations from the mean line within the sampling length. It provides a measure of the average height deviations from the mean line and is useful for evaluating the fine details of the surface texture.

How Does A Surface Roughness Tester Measure Surface Roughness?
Surface Roughness Tester
A surface roughness tester, surface roughness meter, surface roughness gauge typically uses a stylus or probe to measure surface roughness. The stylus is moved across the surface, and as it encounters irregularities, it generates electrical signals. These signals are converted into numerical values that represent the height variations of the surface. The tester’s probe may have a diamond or a ruby tip, which allows it to accurately trace the surface profile. The stylus is guided by a motorized or manual mechanism, and the displacement of the stylus is recorded and analyzed to determine various surface roughness parameters. The measurements are then displayed on the tester’s screen or can be recorded digitally for further analysis.

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