| | | Eddy Current: eddyNCDT The non-contacting eddyNCDT displacement sensors are based on the eddy current principle. They operate without wear and maintenance and do not exert any force on the target. They are used for measurements on objects consisting of electrically conducting materials (ferromagnetic and non-ferromagnetic). The eddy current technique is insensitive to oil, dirt, water and electromagnetic interference. | | Capacitive:capaNCDT The method of capacitive displacement measurement is based on the principle of the ideal plate-type manufacturers of capacitor. The two plate electrodes are formed by the sensor and the target situated opposite. The capacitive principle can be used with electrically conducting materials, such as for example, metals. Excellent resolution and stability with a high cut-off frequency and high linearity characterize this measurement technique. | | |
| | | Laser Triangulation: optoNCDT Displacement sensors in the Series optoNCDT are based on the laser triangulation principle. A visible laser spot is projected from the sensor onto the target. The reflected laser light falls onto a CMOS CCD array which detects even the smallest changes in the position of the target objects. High measuring rates with the highest accuracy can be realized with the laser triangulation technique. | | Confocal: optoNCDT 2400 The optoNCDT 2400 is based on the confocal measurement principle which operates with white light instead of laser light. Using controlled chromatic aberration, the light is broken up into monochromatic wavelengths which are focused on the target. For the measurement, precisely that wavelength is used which is situated at the focus. This techniques facilitates measurements even on highly reflecting and transparent targets. | | |