Inductive displacement sensors with IO-Link or traditional industrial interfaces

As industrial monitoring, quality assurance, production and assembly processes become increasingly connected, engineers need measurement solutions that can integrate easily into modern automation environments – while maintaining flexibility for existing systems.

To address this, test and measurement expert Hottinger Brüel & Kjær (HBK) has expanded the interface options available for its proven WI and WA inductive displacement sensor series, introducing models with an IO-Link interface, alongside existing industrial interface options.

These sensors have long been used successfully in monitoring, quality assurance, production and assembly applications – and in civil engineering.

The Miniature displacement sensors WI with measurement ranges from 2 mm to 10 mm are exceptionally compact, featuring an outer diameter of only 8 mm.

The WA series offers a wide variety of configurations, enabling adaptation to any measurement task. This includes pressure-resistant versions, probe-type sensors, loose plungers and several cable outlet options suited for different mechanical environments. The loose plunger variants are available with measuring ranges of up to 500 mm.

HBK’s three new inline amplifier modules come with 0–10 V, 4–20 mA, or IO-Link outputs. These amplifiers improve linearity to just 0.1% and provide fully calibrated measurement chains. The digital IO-Link versions transmit measurement values in millimeters immediately once connected to an IO-Link master. The versions with IO-Link interface featuring Bessel- or Butterworth filters and calibration results can be stored directly within the sensor if required.