Eddy current sensors with Embedded Coil Technology

It is now possible to manufacture eddy current sensors that are extremely temperature stable with very low thermal expansion or drift; <20ppm/K temperature error is typically achievable with temperature error coefficients as low as 0.5ppm/k also already in use!

Another significant advantage of this technology is the ability to manufacture eddy current sensors with high operating temperatures. Currently, upto 350°C working temperature range is available.

Also, with the development of miniature drive circuit electronics, it is now possible to manufacture the sensor with integrated electronics into the sensor head, creating a single or multiple sensor channel arrangement in one sensor body. Their is now virtually unlimited scope in the shape and mechanical design of the sensor.

Successful Applications:

• Alignment of mirror segments on giant optical telescopes

• Semiconductor manufacture in ultra high vacuums

• Measurement of grinding gap on refiners used in paper mills

For more information Call Micro-Epsilon on +44 (0)151 355 6070

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