Surface Roughness Tester ART200 model
Introduction
ART200 surfaces roughness measure instrument is suitable for shop
floor use and mobile measure to need of a small handheld
instrument, it operation simple, function overall, measure fast,
accuracy stability, take convenience. The AR200 is capable of
evaluating sueface textures with a variety of parameters according
to various national standards and international standard.The
measurement results are displayed digitall/graphically on the
LCD,and output to the printer.
Measurement principle
When measuring roughness of part surface, the pickup is placed on
the surface of the part and then tracing the surface at constant
rate. The pickup acquires the surface roughness by the sharp stylus
in pickup. The roughness causes displacement of pickup which
results in change of inductive value of induction coils thus
generate analogue signal which is in proportion to surface
roughness at output end of phase-sensitive rectifier. This signal
enters data collection system after amplification and level
conversion. After that, those collected data are processed with
digital filtering and parameter calculation by DSP chip and the
measuring result can be read on LCD, printed through printer and
communicated with PC.
Features
15 parameters:
Ra、Rq、Rz、Rt、Rp、Rv、RS、RSm、Rz(JIS)、Ry(JIS)、RSk、R3z、Rmax、RPc、Rmr；
High accuracy inductance pickup;
Four filtering methods of RC, PC-RC, GAUSS and D-P;
Compatible with four standards of ISO, DIN, ANSI and JIS;
Can store 15 sets of measurements results
128×64 dot matrix LCD displays all parameters and graphs;
DSP chip is used to control and process data with high speed and
low power consumption;
Built-in lithium ion chargeable battery and control circuit have
high capacity, without memory effect. Consecutive work time is
longer than 20 hours;
Design of mechanical and electrical integration is adopted to
achieve small bulk, light weight and easy usage;
Can be connected to printer to print all parameters and graphs;
Built-in standard RS232 interface enables communication with PC;
Automatic switch off, memory and various prompt instructions;
Optional printer, analysis software and measurement platform.
Technical parameters
Name | Content |
Measuring range | Z Axis（Vertical） | 160μm |
X Axis（Horizontal） | 17.5mm |
Resolution | Z Axis（Vertical） | 0．01μm/±20μm |
0．02μm/±40μm |
0．04μm/±80μm |
Measurement item | Parameters | Ra、Rq、Rz、Rt、Rp、Rv、RS、RSm、Rz(JIS)、Ry(JIS)、RSk、R3z、Rmax、Rpc、Rmr； |
Standard | ISO,ANSI,DIN,JIS |
Graphic | Roughness profile，Material ratio curve，Direct profile |
Filter | RC,PC-RC,Gauss,D-P |
Sampling length (lr) | 0.25,0.8,2.5mm |
Assessment lengthln） | Ln=lr×n n=1~5 |
Pickup | principle | Differential inductance |
Stylus | Natural Diamond, 90B cone angle, 5μm tip radius |
Force | <4mN |
Skid | Ruby，Longitudinal radius 40mm |
Traversing speed | lr=0.25, Vt=0.135mm/s |
lr=0.8, Vt=0. 5mm/s |
lr=2. 5, Vt=1mm/s |
Return Vt=1mm/s |
Accuracy | Less than or equal to ±10% |
Repeatability | Less than or equal to 6% |
Power supply | Built-in Lithium ion battery，AC adapter 8.4V,800mA |
L×W×H | 119×47×65mm |
Mass | approximately 380g |
