1 Instrument overview
The instrument adopts computer technology and conforms to the national standard GB-T6062 and four standards of ISO, DIN, ANSI and JIS. It can be widely used in the production site and can measure the surface roughness of various machined parts. It can be calculated according to the selected measurement conditions. Corresponding parameters, all measurement parameters are clearly displayed on the liquid crystal display .
1.1 Features
* Multi-parameter measurement: Ra, Rz, Rq, Rt;
* High precision inductive sensor;
*RC, PC-RC, GAUSS, DP four filter methods;
*Built-in lithium-ion rechargeable battery and charging control circuit, high capacity;
* Mechanical and electrical integration design, small size, light weight, easy to use; built-in standard RS232 interface, can communicate with PC;
*This watch has two shutdown methods: one is manual shutdown, and the other is automatic shutdown after 5 minutes of keyboard operation.
*This table can memorize 7 sets of measurement data and measurement conditions for next viewing or online processing.
* With metric and imperial conversion function.
1.2 Measuring principle
When measuring the surface roughness of the workpiece, the sensor is placed on the measured surface , and the driving mechanism inside the instrument drives the sensor to slide along the measured surface at a constant speed. The sensor feels the roughness of the measured At this time, the roughness of the measured surface of the workpiece causes the displacement of the stylus, and the displacement changes the inductance of the sensor inductance coil , thereby generating an analog signal proportional to the measured surface roughness at the output of the phase-sensitive rectifier. After the signal is amplified and level converted, it enters the data acquisition system. The DSP chip performs digital filtering and parameter calculation on the collected data, and the measurement results are displayed on the LCD. At the same time, it can communicate with the PC to realize data analysis, statistics and printing.
1.5 Connection method
1.5.1 Sensor connection
When installing, hold the main part of the sensor with your hand, connect the sensor as shown in Figure 1.5.1, pay attention to the direction of the sensor plug and the connection sleeve, and push it to the bottom. When disassembling, hold the sensor body or the root of the protective cover with your hand and pull it out slowly.
