IO-Link cylinder sensors
Technology

3D-hall measuring cell provides larger magnetic field

Three single hall effect measuring cells are stacked together orthogonally to form a complete measuring cell in 3 dimensions. Independently, each sensor is only sensitive to a single component of the magnetic field vector. When used together, the sensor is able to detect the complete magnetic flux density in all 3 dimensions.

3D-hall measuring cells can measure magnetic fields longer than the sensor’s length accurately and reliably, increasing the measuring range by approximately 40%. Continuous process values are available along the measuring range.

How does the 3D-hall technology compare to other magnetic technologies?

	3D-hall	AMR	GMR	Reed

Continuous position measurement	Yes	No	No	No
Monitoring range*	Up to 50 mm	3...6 mm	9...18 mm	N/A
Repeatability*	< 0.2 mm	< 0.2 mm	< 0.2 mm	- 0.02...0.02 mm
Hysteresis*	< 1.25 mm	< 1 mm	< 1.5 mm	< 1 mm
Response time	< 30 msec	N/A	N/A	N/A
Sensitivity	1 mT	2 mT	2.8 mT	2.1 mT
Life	Unlimited	Unlimited	Unlimited	< 1 million cycles
Interface/output	IO-Link	Semiconductor output	Semiconductor output	Mechanical reed contact

* Values vary depending on magnet strength