Cara Mengukur Mikrometer Sekrup

>Hello Sohib EditorOnline! In this article, we’re going to discuss how to measure using a micrometer screw. Micrometer screw is an essential tool for making precise measurements of small objects with accuracy. It’s widely used in manufacturing, engineering, and automotive industry.

What is a Micrometer Screw?

A micrometer screw is a device used to measure small distances with high accuracy. It consists of a calibrated screw that rotates against a fixed nut. The screw has a precise thread that advances the spindle one thread pitch for each revolution. The spindle carries a measuring face that contacts the object being measured.

The micrometer screw has a precise mechanism for measuring the distance between two points. The spindle moves linearly over a calibrated scale, graduated in millimeters (mm) or inches (in). The linear movement of the spindle is converted into rotary motion by the screw thread, providing a high magnification ratio between the scale and the spindle movement.

There are two types of micrometer screw: Inside micrometer and Outside micrometer screw. Inside micrometer is used to measure the internal diameter of objects. Whereas, outside micrometer is used to measure the external diameter of objects. In this article, we will focus on the outside micrometer screw.

The Parts of a Micrometer Screw

A micrometer screw is made up of several main parts. Understanding the functions of each part is essential to use the tool properly. Here are the main parts of a micrometer screw:

Using a Micrometer Screw

To use a micrometer screw, follow these steps:

Step 1: Preparation

First, clean the micrometer screw thoroughly. Ensure that there is no dirt or debris on the measuring faces, spindle, or anvil. Any dirt on these surfaces may lead to inaccurate measurements.

Step 2: Zeroing

Next, zero the micrometer screw. Zeroing is the process of calibrating the micrometer screw so that it reads zero when there is no object being measured. To zero the micrometer screw:

1. Close the micrometer screw until the spindle is tight against the anvil.
2. Check that the micrometer reads zero on the scale and the vernier.
3. If the reading is not zero, use the adjustment screw to adjust the position of the slide until it reads zero.
4. Repeat the process until the micrometer screw reads zero accurately.

Step 3: Measuring

After zeroing the micrometer screw, you’re ready to measure an object. Here’s how to do it:

1. Select the correct anvil based on the object’s shape and size. For example, flat objects should be measured using a flat anvil, whereas round objects should be measured using a ball anvil.
2. Place the object being measured between the spindle and anvil. Ensure that the object is in contact with both measuring faces.
3. Rotate the thimble until the spindle is in contact with the object being measured. Avoid applying too much force, as this will lead to inaccurate measurements.
4. Read the value on the scale and vernier. The scale provides the whole-number part of the measurement, whereas the vernier provides the fractional part.

Tips for Using a Micrometer Screw

Here are some tips to keep in mind when using a micrometer screw:

• Use the correct anvil for the object being measured.
• Avoid applying too much force when measuring, as it may damage the micrometer screw or lead to inaccurate measurements.
• Store the micrometer screw in a dry place to prevent rusting.
• Use a micrometer screw with a locking nut to prevent accidental movement during measurement.

Frequently Asked Questions

Q: What is the accuracy of a micrometer screw?

A: The accuracy of a micrometer screw depends on the quality of the tool and the skill of the user. A good-quality micrometer screw can measure to within 0.001 mm or 0.0001 in.

Q: What is the difference between a micrometer screw and a caliper?

A: A micrometer screw provides higher accuracy than a caliper. Calipers are typically used for rough measurements, whereas micrometer screws are used for precise measurements.

Q: Can a micrometer screw be used to measure depth?

A: No, a micrometer screw is not designed to measure depth. For measuring depth, you should use a depth micrometer.

Q: Can a micrometer screw measure angles?

A: No, a micrometer screw is not designed to measure angles. For measuring angles, you should use a protractor or an angle meter.

Q: How to read a vernier scale on a micrometer screw?

A: To read a vernier scale on a micrometer screw, align the lines on the vernier scale with the lines on the main scale. The value on the vernier scale that aligns with a line on the main scale is the fractional part of the measurement.

Conclusion

In conclusion, a micrometer screw is an essential tool for making precise measurements of small objects. By understanding how to use a micrometer screw properly, you can ensure accurate measurements and avoid damaging the tool. Remember to follow the steps we’ve outlined in this article and handle the micrometer screw with care.

Cara Mengukur Mikrometer Sekrup