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Industrial optical position encoding with iC-Haus

Magnetic position sensors giving you trouble in your industrial motor applications? Well, iC-Haus has a new optical solution that could be a much better fit…

In ipXchange’s next video from SENSOR+TEST 2024, Guy chats with Goran from iC-Haus about a new optical encoder – the iC-PXL3212 – that outperforms magnetic alternatives for applications such as robotics, motor control, and medical devices. Outside of that, it also makes for a great fully integrated lidar solution!

iC-Haus’ iC-PXL3212 is an optical reflective sensor System-on-Chip (SoC) that integrates a blue LED and monolithic HD phased array of photosensors. All that is required to set up high-precision position measurement is in additional patterned reflective target for the iC-PXL3212 to read. The resolution of this measurement can be set up by the designer to suit the application requirements.

In contrast to magnetic solutions addressing the same challenge of relative position sensing, optical sensors like the iC-PXL3212 are much higher resolution and accuracy. This is because the signal conditions are much better defined than when using magnetic targets.

Goran also explains how the iC-PXL3212’s single-part emitter and detector design results in dramatically reduced measurement error because both vital aspects of a light-based measurement system are pre-aligned. This is particularly important in longer-range lidar use cases.

The iC-PXL3212 also has a wide operating temperature range of -40°C to +125°C, which makes it suitable for use in industrial settings. The only disadvantage, however, is that performance suffers in dusty environments where some magnetic sensors might have an advantage. Additionally, water and humidity can adversely affect performance.

That said, the gap between the target and the sensor can withstand much greater tolerances than magnetic technology as light energy has a far longer range than magnetic fields, with a much more stable strength profile over that range.

The evaluation system for the iC-PXL3212 can be configured with linear or rotary targets. A motherboard allows you to make quick changes to settings so that you can check the performance of the optical sensor on the fly, without having to constantly rewrite code.

Goran proposes that iC-Haus can help you in the process of selecting the right targets for your application to greatly simplify the process of moving away from legacy magnetic technology. This includes targets that are resilient against shock and vibration.

Learn more about the iC-PXL3212 by following the link to the board page below, and if you’re in need of a high-accuracy optical position sensor, consider evaluating this technology today by filling out a form.

Keep designing!

Enjoyed this video with iC-Haus? Check out our previous encounter at SENSOR+TEST 2023:

Robust 2-way data communication and power using just 2 wires? iC-Haus has the solution!

iC-Haus iC-PXL3212 Optical Reflective 2-Channel Encoder SoC

Need high-accuracy position sensing in an unstable industrial environment or high-precision robot?

Apply for the development board now
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