The applicable range of calipers

The applicable range of calipers
First check the shape of the jaw, jaw shape measurement accuracy, you should pay attention to regular trimming the shape of the jaws, jaw shape of good and bad contrast. Adjust the opening of the caliper, gently tap the calipers on both sides of the foot surface. Caliper adjustment with both hands and the size of the workpiece close to the opening, and then tap the outside of the caliper to reduce the opening of the caliper, tap the calipers the inside to increase the opening of the caliper. This is because the caliper jaw injury in the amount of surface caused by measurement error. More knocking on the rail of the machine calipers.
The caliper is a simple measuring tools, because of its simple structure, easy fabrication, low cost, maintenance and easy to use features, widely used in the measurement and inspection of the size of the less demanding parts, especially the malleable pieces of rough size measurement and testing, the caliper is the most appropriate measurement tools.
Although the caliper is a simple measuring tools,brake racing as long as we have a good grasp also get a higher measurement accuracy. Outside calipers Comparison of two-axis diameter size is the shaft diameter difference of only 0.01MM experienced master craftsman also able to distinguish the draw. Another example is when the pore size within the caliper and the outer diameter percentile foot joint measurement, the experienced master craftsmen completely sure this method of measuring high-precision bore. Internal diameter measurement method, known as "slot and the percentage feet, using internal calipers read the exact percentage of feet on the outside diameter size, go to the inner diameter of the measuring parts; or stuck in the hole adjustment and hole the tightness of the contact, and then read in the percentage feet on the outside diameter of a specific size. This measurement method, not only in the lack of precision measuring of inside diameter is a good way of measuring diameter, and, for certain parts of the inner diameter of difficulties due to its hole axis use precision internal diameter of calipers to take within the application percentile feet OD measurement of the diameter method, will be able to resolve.