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Mon Jan 21 2019

Capacitive sensors with controllers

By Bestech Australia

Capacitive sensors are inspired by the electrical property of capacitance between any two conductive surfaces within reasonable proximity, and as changes in distance between the surfaces will change the capacitance value, it then reflects the change in position of a target. High-performance capacitive sensors have outputs which are very linear, stable with temperature, and able to resolve incredibly small changes in capacitance resulting in high resolution measurements of less than one nanometre. The capaNCDT series measure displacements, distances or positions of any electrically-conducting targets (e.g. metals). A linearization function is integrated for measurement against insulator materials. Capacitive sensors are available for a wide range of applications.
Capacitive sensors of the capaNCDT series measure displacements, distances or positions of any electrically-conducting targets (e.g. metals). These sensors are wear-free and maintenance-free, possessing stable linear characteristics and suitable for displacement, distance or position measurements of all conductive, semi-conductive materials. Non-contact capacitive sensor systems with outstanding temperature stability, are commonly applied for positioning, wear, gap, displacement, roundness measurements finding applications in production plants, test equipment, laboratory and quality assurance for process control.
Triaxial sensor design
Superior precision and resolution
Excellent temperature stability
Outstanding long-term stability
Material-independent for metallic targets
Suitable for insulating materials
Active guard triaxial cable
Instant sensor replacement without recalibration
No target grounding is required
The new capaNCDT 6220 controller for capacitive sensors, developed for non-contact displacement, distance and position measurement, which can be enlarged by a maximum of 4 measurement channels. The additional channels can be added or removed by the user without any loss of performance or operation of the software. The new controller can be ordered from Bestech Australia has an Ethernet interface; operation is effected via web interface. The flexibility of the controller is supported by various installation options. The standard product is designed as a benchtop unit: it can be mounted to the wall using a top-hat rail.    

All Micro-Epsilon capacitive displacement sensors can be connected to the controller without any additional calibration. In order to improve the accuracy of measurement results, custom characteristics can be stored. The new capaNCDT 6220 capacitive controller is used for the measurement of thickness, tilt angle and vibrations such as brake disc inspection applications.   

For more details pleases download product brochure.