How to select the measuring instrument

The outer diameter of cables, wires, etc. during production is mostly measured by on-line measuring instrument. It can carry out automatic detection and control the outer diameter. It plays an important role in reducing the fluctuation of wire diameter and improving the output. It is also one of the favorable equipment for the cable factory to improve the economic efficiency.

The cable diameter measuring methods include caliper caliper, laser scanning measuring instrument, photoelectric measuring instrument, laser diffraction diameter measuring instrument, etc. among them, caliper caliper is mainly used for offline sampling inspection and cannot be used for online diameter measurement. The laser scanning diameter measuring instrument has vulnerable parts and is not stable enough. The laser diffraction diameter measuring instrument is more suitable for measuring the diameter of the wire, and the photoelectric diameter measuring instrument is more suitable for dynamic detection and is not easy to be damaged.

The following points should be paid attention to in the selection: first, determine your measurement range; The second is to determine the measurement accuracy; Third, use occasion; The fourth is to detect which data. Pay attention to the following points when purchasing:

1、 The measuring range must be the large and small values of all cables produced, so that the caliper can detect all cables produced without purchasing an additional instrument. The measuring area of the caliper is a range, so it can meet various cable specifications in production.

2、 The measurement accuracy requirement depends on the cable measurement accuracy requirement in production, and the general measurement accuracy can be met.

3、 When used, as an online caliper, it is naturally installed on the production line for measurement. At this time, the installation position needs to be considered. Since the control function has a certain relationship with the time t, the installation position, distance, speed and other information should be specified.

4、 Test data: most of the cables and cables only need to test the outer diameter. At this time, a single path caliper can be selected. When it is necessary to test the ovality, a dual axis caliper is required. Generally speaking, the roundness of cables and cables is large, so a dual axis caliper can be selected. Of course, if necessary, a caliper with more axes can also be selected.

The cable caliper is a high-speed online testing equipment with a detection frequency of 500 / 2000Hz, which can meet the cable measurement at various production speeds. Precautions during use: regularly wipe the probe with soft cloth, and pay attention not to bump or modify the program.

The above are some tips that should be paid attention to when selecting and using the cable caliper. For specific use, please refer to the instructions and manuals of the manufacturer of the cable caliper