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Photoelectric sensors

Senyd Photoelectric sensors are devices that use light to detect the presence or absence of an object. They work by emitting a light beam (usually infrared, visible, or ultraviolet light) towards the object to be detected. When the object interrupts the light beam, the sensor detects the change in light intensity and triggers a response, such as activating a switch, counting objects, or measuring distance.

There are several types of photoelectric sensors, including through-beam sensors, retro-reflective sensors, and diffuse reflective sensors. Through-beam sensors consist of a separate transmitter and receiver placed opposite each other, with the object passing between them to break the beam. Retro-reflective sensors have a built-in reflector that bounces the light back to the sensor, while diffuse reflective sensors detect the light reflected directly from the object.

Photoelectric sensors are commonly used in industrial automation, packaging, material handling, and robotics applications due to their reliability, versatility, and ability to detect a wide range of objects regardless of color, shape, or material. They are also preferred in applications where contact-based sensors are not suitable due to environmental conditions, such as dust, dirt, or moisture.

Senyd Rotary Encoder

Rotary encoders are required wherever physical quantities such as rotational speed, angle of rotation, velocity or acceleration are to be monitored. In combination with cable pulls, they can also measure linear movements and lengths.

Rotary encoders from Senyd are used in a wide variety of industries—from mechanical and plant engineering to material handling and the renewable energy sector. Whether heavy-duty, offshore or hazardous areas: Senyd offers the right incremental or absolute rotary encoder for all application requirements. 

With Senyd you can reliably record every movement in your application.

Optical vs. Magnetic Scanning

High resolutions can be easily achieved with Senyd optical rotary encoders. A code disk with radial slits is used for this purpose. An LED sends light through the radial slits to a receiver located on the other side of the code disc. The rotation of the disk modulates the light, and the receiver converts it into an electrical signal.

The magnetic rotary encoders from Senyd are particularly robust and therefore ideally suited for use in harsh environments. Due    to energy harvesting, the magnetic absolute rotary encoders do not require an external power supply to save their current position. As a result, they perform reliably even in the event of power failures.