Displacement sensors

Non-contact position measurement sensors

Vibrance Solutions offers several displacement sensor technologies for integration into industrial automation or research measurement projects. Laser displacement sensors from Acuity offer precise distance measuring of material thickness, widths or heights. Kaman's eddy current sensor can offer nanometer-scale resolution and can withstand harsh environments.

Laser Displacement Sensors

Acuity laser sensors use either triangulation or time-of-flight measurement principles to accurately measure displacements and target positions. Laser triangulation sensors measure from 3 mm to 1.3 meters and their accuracy is typically a percentage of the measurement range. Rangefinders using TOF can measure up to 300 meters and have millimeter accuracy. Measuremet speeds can be up to 200 KHz. Output interfaces are digital or analog. Typical applications vary widely as the sensors are multi-purpose in nature, but crane positioning, rubber thickness and silicon wafer planarity are common ones.

Confocal Measurement Sensors

Acuity's most resolute distance sensor employs a unique measuring principle, confocal chromatic sensing. Unlike  time-of-flight and triangulation sensors which use lasers, the confocal sensors use a white light source to accurately measure the distance to surfaces. Some models are accurate to within 20 nanometers. Additionally, this technology permits measurement and profile of transparent materials like glass, lenses, liquids, etc.

 

Eddy Current Displacement Sensors

Kaman Inductive / Eddy Current technology linear displacement sensors rely on inductive techniques to induce current flow in a conductive 'target' without physical contact. The term 'eddy current' refers to the fact that induced current flows in a circular pattern. Typical applications include Automotive, plastic injection molding, semiconductor manufacturing and web thickness.