Not all capacitive sensors are created equal
A
PI (Physik Instrumente) product story
Edited by the Engineeringtalk editorial team
Oct 2, 2006
Capacitive displacement gauges perform high-precision, noncontact measurements of geometric quantities against any kind of electrically conductive target.
PI (Physik Instrumente) introduces the D-510 family of PISeca capacitive displacement gauges.
PISeca capacitance gauges perform high-precision, noncontact measurements of geometric quantities representing displacement, separation, position, length or other linear dimension against any kind of electrically conductive target.
These single-probe nanometrology sensors combine superior resolution and linearity with very high bandwidth for dynamic measurements.
Not all capacitive sensors are created equal.
Because the sensor design has a strong influence on the linearity, PI uses a special guard-ring electrode to shield the sensor electrode from boundary effects.
This ensures a homogeneous electric field in the measurement zone and results in higher measuring linearity.
In addition, the E-852 sensor signal conditioning electronics are equipped with the PI proprietary ILS linearisation circuit.
The capacitive gauges are plug and play units.
The cable plugs directly into the sensor head for easy installation or replacement in the field.
Installation is further facilitated by a display in the sensor electronics that indicates the optimum distance between probe and target.
PISeca capacitive sensor systems can be operated in multichannel configurations and combined with nanopositioning actuators for nanometre precise closed-loop motion control applications.
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Contact PI (Physik Instrumente)
Tel +44 1234 756360
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