How to use the vernier caliper and how to read the

2022-08-21
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How to use the vernier caliper and how to read the size correctly

Abstract: the vernier caliper is a convenient tool, which can easily and accurately measure the "East-West length" and "thickness" of the palm size. Since 1 mm 〜 tool can be measured through the relevant ± 0.2 mm length of 100mm, how to use vernier caliper

use the caliper to measure what you want to measure

have those calipers to look at the main scale (main scale) and the vernier caliper (vernier) to the front, and press your address. When pressing the slider (part of the movement of the caliper), the thumb of the hook part is measured with the jaw and gently pinched. If the operator should learn to find problems and eliminate them, if he strongly presses this part, an error will occur. At this time, the caliper is perpendicular to the round bar. In this state, read the size from the position relationship between the main scale and the cursor scale. When the memory at this time is difficult to read, slide and fix, strengthen the screws on the left-hand block, from the caliper to measure your two-dimensional world, and pull out the Chin's soft caliper in an easy to read position

then it finally reads the dimension. The biggest feature of caliper is vernier scale. It takes skill to scale the size reading with a vernier. Please remember it again and again before you get used to it

how to read the cursor scale

the following picture is a perfect picture of 20mm. The 0 (zero) of the cursor scale matches perfectly at 20 positions on the main scale. In this state, the reading is 20.0 mm, such as high dependence on the import of raw materials

how to read the cursor scale (slightly greater than 20 mm)

the following figure shows a situation slightly greater than 20mm. The cursor scale 0 deviates slightly from the right side of the main scale 20. And the scale lines of the main scale and the cursor scale are accurately aligned, and the cursor scale is displayed as "2". The cursor scale is displayed as 0.2 mm. Therefore, this dimension is a major scale of 20mm + 0.2mm = 20.2mm

how to read the cursor scale (slightly less than 20 and the elongation gradually decreases by mm)

in the following figure, there is 0 on the cursor scale, which is located on the left side of the 20 mm position on the main scale. At this time, the cursor scale is "8". In other words, the cursor scale is displayed as 0.8 mm. At this time, the main scale value is 18 mm. Therefore, it becomes 18mm + 0.8. It is the best way to use a regulated power supply that can filter interference mm = 18.8mm

let's practice reading. Please read the dimensions in order starting from example 1

example 1: what is this dimension

answer: 27.2 mm

0 on the cursor scale is slightly higher than 27 mm on the main scale. Since the vernier scale reads 0.2 mm, it is 27 mm + 0.2 mm = 27.2 mm

example 2: how big is this dimension

answer: 150.25 mm

although the maximum size of this caliper is only 150 mm, the engraving time of the memory is slightly longer than the maximum size, depending on the manufacturer. This is an example. If you use it, you can measure something longer

the cursor scale 0 is slightly on the right side of the main scale 150 mm, and the cursor scale is between 2 and 3. I read it as 0.25 mm. Therefore, it becomes 150 mm + 0.25 mm = 150.25 mm

since the vernier scale of the photo caliper is divided into 20 equal parts, the maximum reading can be 0.05 mm, but the caliper manufacturer only guarantees the accuracy of ± 0.2 mm. The reasons are explained at the intermediate level

as shown in the above figure, when viewing the cursor scale from the front, the parallax is very small

when reading the cursor scale, the time value looks different from the angle. This is called parallax. When reading the size from the vernier scale, please read the eye position in front of the scale

some vernier calipers find it difficult to read their size. Vernier calipers are easy to misunderstand. Therefore, dial calipers and digital calipers have been developed to prevent reading errors. Although these calipers can read detailed dimensions from standard calipers, the manufacturer guarantees that the accuracy is ± 0.2 mm, which is the same as that of standard calipers

vernier caliper is a convenient tool, which can easily and accurately measure the "East-West length" and "thickness" of palm size. Since 1 mm ~ tool, it can be measured through the relevant ± 0.2 mm length of 100mm, as well as for field operation

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