Must Know ロータリーエンコーダ使い方 Article

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Introduction

If you are looking for a device that can track the rotation of a shaft or a motor, then a rotary encoder is the perfect tool for you. These devices come in different types and sizes, but they all serve the same purpose. In this article, we will be discussing the different types of rotary encoders available, and how to use them.

What is a Rotary Encoder?

A rotary encoder is a device that converts the rotation of a shaft or motor into an electrical signal. This signal can then be used to determine the speed, position, or direction of the rotation. There are two types of rotary encoders - absolute and incremental.

Absolute Rotary Encoders

An absolute rotary encoder provides a unique output code for each position of the shaft. This means that the position of the shaft can be determined without the need for a reference point. Absolute rotary encoders are used in applications where accuracy is critical, such as robotics or machine tool positioning.

Incremental Rotary Encoders

An incremental rotary encoder provides a series of pulses that are used to determine the speed, position, and direction of the rotation. These encoders require a reference point to be set, usually at the start of the rotation. Incremental rotary encoders are used in applications where accuracy is not critical, such as speed control or motor feedback.

How to Use a Rotary Encoder

Using a rotary encoder is relatively simple. First, you need to connect the encoder to a microcontroller or a computer. This is done by connecting the output pins of the encoder to the input pins of the microcontroller or computer. Next, you need to configure the microcontroller or computer to read the output of the encoder. This is done by programming the microcontroller or computer to read the pulses generated by the encoder. Once the microcontroller or computer is configured, you can start using the encoder. When the shaft or motor rotates, the encoder will generate a series of pulses. These pulses can be used to determine the speed, position, and direction of the rotation.

Advantages of Using a Rotary Encoder

There are several advantages to using a rotary encoder. These include:

High accuracy
Wide range of applications
Reliable
Low cost

Conclusion

In conclusion, rotary encoders are essential tools for anyone who needs to track the rotation of a shaft or motor. They come in different types and sizes, but they all serve the same purpose. By understanding the different types of rotary encoders available and how to use them, you can choose the right encoder for your application and get the most out of it.