How to read oil gauge caliper
The oil caliper is a precision measuring tool widely used in machining, manufacturing, and laboratories. Correctly reading the scale of the oil dip caliper is key to ensuring measurement accuracy. This article will introduce in detail the structure, reading method and common problems of the oil dip caliper to help you master this practical skill.
1. Structure of Oil Dial Caliper
The oil level caliper mainly consists of the following parts:
| Part name | Function description |
|---|---|
| main ruler | Fixed part, marked with main scale lines, in millimeters (mm) |
| vernier scale | Sliding part marked with vernier graduations for precise measurement of decimal parts |
| Outer measuring claw | For measuring outer diameter or length |
| inner measuring claw | For measuring inner diameter or bore diameter |
| depth gauge | for measuring depth |
2. How to read the oil gauge caliper
The oil dip caliper reading is divided into the following three steps:
1.Read the main scale scale: First observe the position of the "0" scale line of the vernier scale on the main scale, and read the whole millimeter closest to the "0" scale line on the main scale. For example, if the "0" scale mark is between 12mm and 13mm on the main scale, the main scale reads 12mm.
2.Read vernier scale: Then observe the scale lines on the vernier scale that are aligned with the main scale scale lines. Vernier scales usually have 20 or 50 scales, each scale represents 0.05mm or 0.02mm. For example, if the 7th scale line of the vernier scale is aligned with the main scale scale line, and the accuracy of the vernier scale is 0.02mm, the vernier scale reading is 7 × 0.02mm = 0.14mm.
3.Calculate total readings: Add the main scale reading and the vernier scale reading to get the final measurement value. For example, if the main scale reads 12mm and the vernier scale reads 0.14mm, the total reading is 12.14mm.
| steps | Operating Instructions | Example |
|---|---|---|
| 1 | Read the main scale scale | 12mm |
| 2 | Read vernier scale | 0.14mm |
| 3 | Calculate total readings | 12.14mm |
3. Common problems and solutions
1.Difficulty aligning vernier scale marks: Sometimes the scale lines of the vernier scale are not completely aligned with the scale lines of the main scale. In this case, you can try to move the vernier scale slightly to find the closest aligned scale line.
2.measurement error: Ensure that the caliper is in close contact with the object being measured during measurement to avoid tilting or loosening. Averaging multiple measurements can reduce errors.
3.Caliper maintenance: The caliper should be cleaned after use to avoid dust or oil from affecting measurement accuracy. Regularly check whether the zero position of the caliper is correct and calibrate it if necessary.
4. Precautions for using oil dip caliper
1. Check whether the zero position of the caliper is accurate before use. If the "0" scale line of the vernier scale does not coincide with the "0" scale line of the main scale, zero adjustment is required.
2. When measuring, keep the caliper perpendicular or parallel to the object being measured to avoid measurement errors caused by tilt.
3. Avoid using excessive force to avoid damaging the measuring claws or vernier scale of the caliper.
4. When storing, the caliper should be placed in a dry, dust-free environment to avoid moisture or corrosive gases.
5. Summary
The oil level caliper is a high-precision measuring tool. To correctly read its scale requires mastering the cooperative use of the main scale and vernier scale. Through the introduction of this article, you should be able to skillfully read the measurement value of the oil dip caliper and avoid common operating errors. In practical applications, more practice and attention to maintenance can further improve the accuracy of measurement and the service life of the caliper.
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