The robust alternative to optical encoders. Magnetic, true absolute, up to 255 revolutions.


NEW! PTK Series gyro-compensated inclination sensors


The innovation for applications with pulleys


Magnetic angle measurement for harsh environments


Robust Magnetic Incremental Encoder for Harsh Environments

Rotational position needs to be detected in many applications, such as mobile machines or food packaging machines. However, many encoders are not suited for rough environmental conditions as typically given in these applications such as dirt, humidity and extreme temperatures and will show early sensor failures. ASM presents posirot® PMIS4/PMIR7, a non-contact, wear-free magnetic incremental encoder solution which was designed to withstand harsh environmental conditions and offers a unique simple slide-on shaft assembly.

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The underrated risk of leakage

Traditional angle sensors often show unexpected failures under outdoor conditions even with high IP protection rates such as IP67. This is mostly due to moisture ingress via non-airtight spaces leading to corrosion of the sensor electronics. Conventional coating and sealing technologies have not been successful in preventing corrosion in the long-term. ASM Sensors has developed a new sealing technology which hermetically seals the sensor. This patented airtight sealing technology prevents costly sensor replacements caused by failures due to insufficient sensor sealing.


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New Multiturn Encoder-Technology POSIHALL®

Optical encoders are prone to fail under harsh environmental conditions, for example by the penetration of moisture into the sensor housing or by the destruction of breakable glass discs. ASM therefore developed the robust alternative to optical encoders: The magnetic multiturn encoder-technology POSIHALL® measures absolute angular position of a shaft over multiple revolutions by utilizing a gear coupled multi-hall sensor system. In contrast to current magnetic encoder technologies POSIHALL® is a true-absolute technology ensuring reliable and correct positioning after disturbances such as a power failure.

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