一，The Role of Absolute Encoders
Absolute encoders are devices used to measure and record the position or angle changes of an object, with their most notable role being the provision of absolute position information. Unlike incremental encoders, absolute encoders do not need to accumulate pulse counts from zero to calculate position, but instead directly output a unique encoded value representing the current position. This allows absolute encoders to obtain current position information immediately after a power failure or system restart without needing recalibration, significantly enhancing the reliability and stability of the system. Briterencoder’s high-precision absolute encoders utilize a new patented technology with a precise mechanical gear structure. The internal magnetic sensing chip detects changes in the magnetic field to record the rotation angle, operating without a battery and offering power-off memory, which means data can be preserved even when the power is lost.
二，Functional Features of Absolute Encoders
① High-Precision Measurement:
Absolute encoders utilize advanced encoding technology to achieve high-precision measurements of an object’s position or angle. Their resolution is typically high, meeting the demands of various high-precision application scenarios.
②Multi-Turn Measurement and Recording:
For applications that require measuring rotations exceeding one turn, absolute encoders can record both the number of revolutions and the current position, thus providing complete measurement of an object’s rotational angle. This feature is particularly important for devices like industrial robots and robotic arms that require extensive rotational movement. Briterencoder’s absolute encoders can record data for up to millions of turns without losing information after a power failure.
③Multiple Communication Protocols:
The absolute encoder, with its excellent performance and wide range of applications, supports multiple communication protocols including but not limited to RS-485, CANopen, and Modbus. This multi-protocol support feature allows the absolute encoder to seamlessly integrate into various industrial automation and control systems.
Whether it’s high-speed data transmission, motion control applications with high real-time requirements, or distributed systems under complex network architectures, absolute encoders can ensure that data flows accurately and efficiently due to their flexible communication interfaces. This not only optimizes information exchange between devices but also significantly enhances the overall stability and reliability of the system, providing a solid foundation for smart manufacturing and industrial upgrading.
Briterencoder Absolute Encoder supports the following output formats.
④Strong Anti-Interference Capability:
Absolute encoders are designed with special materials and structures to withstand external electromagnetic interference and vibration. This ensures stable performance even in harsh environments, guaranteeing the accuracy and reliability of measurement results.
⑤ Easy to Install and Maintain:
Absolute encoders offer various installation methods, such as shaft-end mounting and flange mounting, allowing users to choose based on their actual needs. Additionally, their compact structure and small size facilitate maintenance and replacement. Some encoders even come with self-diagnostic functions that monitor the operational status in real-time and provide alerts in case of faults. Briterencoder’s absolute encoders feature indicator lights at the rear for quick checks on the encoder’s current status.
⑥ Data Preservation and Power-Off Memory:
Absolute encoders can achieve data preservation and power-off memory based on several key factors:
1、Unique Encoding System:
Absolute encoders typically utilize coding systems such as gray code or binary code. These coding systems have the characteristic that adjacent code values differ by only one bit, ensuring that only one bit changes during the rotation of the code disk. This ensures that each different position has a unique code, allowing for unique identification of the position.
2、Special Code Disk Structure:
The code disk of an absolute encoder is designed with multiple regions, each with a unique encoding. This design allows the encoder to read the encoding information directly from the code disk upon re-energizing after a power loss, without needing a zero-return operation. Each position’s code is unique, enabling precise determination of the current position.
3、Function of Electronic Decoder:
The signals detected by the sensor are processed by the electronic decoder. The decoder interprets the changes in gray code or binary code and converts them into accurate position information. Therefore, regardless of whether the system loses power, the decoder can determine the current position based on the detected encoding information, implementing data preservation and power-off memory.
4、Backup and Recovery Mechanism:
To further enhance the reliability of data preservation, some absolute encoders also adopt backup and recovery mechanisms. By incorporating additional storage units within the encoder, data preservation and recovery can be implemented. When the encoder is powered on again after a power loss, it can read data from the backup storage unit, accurately restoring the position to what it was before the power loss.
⑦ Compatibility with Various Accessories:
Briterencoder’s absolute encoders can be paired with various accessories, such as serial port displays (compatible with RS485 only), allowing for quick and intuitive observation of data changes from the absolute encoder, with multiple sizes (4.3 inches, 7 inches, and 10 inches) available. Additionally, length measuring wheels and counters, among others, can also be used in conjunction.
In summary, absolute encoders have wide application prospects and significant roles in industrial systems. Their high precision, stability, diverse functional characteristics, and ease of installation and maintenance make them ideal choices for various high-precision measurement and positioning control scenarios.
For more information or to make a purchase, please visit our official website at https://briterencoder.com/. Choose Shenzhen Briter Technology Co.,Ltd and experience the excellence of high-precision measurement!
