Roughness Tester/Surface Roughness/Test Instrument/Roughness Tester/Testing Machining Parts/Surface Roughness Tester
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- Model NO.: RT-100
- Measurement Object: Surface
- Material: Aluminum Alloy
- Certification: CE
- Shape: Rectangular
- Red: DOT Matrix LCD Display
- Transport Package: Portable Case
- Origin: China
- Type: Surface Plate
- Test Methods: Indicator Method
- Precision Gauge: Precision Gauge
- Usage: For Working
- Customized: Customized
- Trademark: Joinstars
- Specification: CE
- HS Code: 9031809090
Measurement Parameters(µ M): Ra Rz Rq Rt
Stroke Length(mm): 6
Sampling Length(mm): 0.25, 0.80, 2.50
Evaluation Length(mm): 1.25, 4.0,
Measurement Range(µ M ):
Ra: 0.05 ~ 10.0 Rz: 0.1 ~ 50
Rq: 0.05 ~ 10.0 Rt: 0.1 ~ 50
Error of Indication: ± 15%
Varation of Indication: <12%
Touch needle tip arc radius and angle of the sensor
Tip arc radius: 10 µ M± 1 µ M
The sensor touch needle static force measurement and its rate
Touch needle static force measurement: ≤ 0.016N
Force measurement rate: ≤ 800N/m
Sensor guide head pressure: ≤ 0.5N
Battery: 3.7V Lithium Ion battery
Contour Dimension: 106 mm× 70 mm× 24 mm
Working Environment Conditions
Temperature: -20~40º C
Relative Humidity: < 90%
Surrounding no vibration and no corrosive medium.
L Surface Roughness is the microcosmic geometric form on the work-piece surface composed by peak and valley with small interspaces.
L Sample Length is the benchmark's length used to be distinguished its surface roughness.
L Evaluation Length is the necessary length for evaluating the roughness profile. It may include one or more sampling lengths.
L Ra: Airthmetical Mean Deviation of the Profile is arithmetic mean value of the deviation of the profile within sampling length.
L Rz: The maximum Height of Irregularities is the distance between maximum depth of the profile peaks and maximum depth of the profile valley within the sampling length.
L Rq: Root-mean-square Deviation of Profile
Rq is the square root of the arithmetic mean of the squares of profile deviation (Yi)from mean within sampling length.
L Rt: Total Peak-to-valley Height
Rt is the sum of the height of the highest peak and the depth of the deepest valley over the evaluation length.