Photoelectric Speed Sensor Encoder Coded Disc code wheel

A photoelectric speed sensor encoder coded disc, also known as a code wheel, is a device used to measure rotational speed or position in various applications. It is commonly used in machinery, robotics, and automation systems. A photoelectric speed sensor encoder coded disc, also known as a code wheel, is a device used to measure rotational speed or position in various applications. It is commonly used in machinery, robotics, and automation systems.

Features:

• Disc/Code Wheel: The disc or code wheel is a circular or disc-shaped component with patterns or marks engraved or printed on its surface. These patterns can be in the form of slots, holes, or alternating opaque and transparent segments.
• Encoder: The disc is typically used in conjunction with an encoder, which is a sensor that detects and measures the patterns on the code wheel as it rotates. The encoder can be an optical sensor or a magnetic sensor, depending on the type of code wheel used.
• Photoelectric Sensor: In the case of a photoelectric speed sensor encoder, an optical sensor is used. It typically consists of a light emitter (e.g., an LED) and a light receiver (e.g., a photodiode). The sensor emits light onto the code wheel, and the reflected or transmitted light is detected by the receiver.
• Pattern Detection: As the code wheel rotates, the patterns on its surface pass through the sensor's detection area. The sensor detects changes in light intensity caused by the alternating transparent and opaque segments or by the slots and holes. These changes in light are converted into electrical signals.
• Speed and Position Measurement: The electrical signals generated by the photoelectric sensor are processed by an electronic circuit or a microcontroller. The circuit measures the time intervals between the changes in the electrical signals, allowing it to calculate the rotational speed or position of the code wheel.