Description
This instrument is compatible with four standards of site to measure surface roughness of various machinery-processed parts, calculate corresponding and display all measurement parameters.
When measuring the roughness of a surface, the sensor is placed on the surface and then uniformly slides along the surface by driving the mechanism by the sharp built-in probe. This roughness causes displacement of the probe which results in change of inductive amount of induction coils so as to generate analogue signal, which is in proportion to the surface roughness at output end of phase-sensitive rectifier.
The exclusive DSP processes and calculates and then outputs the measurement results on LCD.
Specification
Display | 4 digits, 10 mm LCD, with blue backlight |
Parameters | Ra, Rz |
Measuring Range | Ra: 0.025-16.00um
Rz: 0.020-160.0um |
Accuracy | < 10% |
Fluctuation of display value | < 6% |
Sensor |
Radius of Probe Pin: 5um
Diameter of sensor head: 6mm
|
Material of Probe Pin | Diamond |
Dynamo-measurement of Probe | 16mN(1.6gf) |
Probe Angle | 90° |
Vertical Radius of Guiding Head | 48mm |
Maximum driving stroke | 17.5mm/0.7inch |
Cut off length (l) | 0.25mm / 0.8mm / 2.5mm |
Driving speed | sampling length = 0.25mm Vt=0.135mm/s
sampling length = 0.8mm Vt=0.5mm/s sampling length = 2.5mm Vt=1mm/s
returning Vt=1mm/s.
|
Battery | 4 x 1.5V AAA (UM-4) battery |