Bestech Australia presents a high-precision capacitive sensor ideal for stabilising the field of view of a surgical microscope.
Surgeons often use surgical microscopes for support because surgical procedures require a perfect view of the operating area. The capaNCDT 6019 capacitive measurement system supplied by Bestech Australia measures the distance to a reference area that reflects the long tripod arm movement in the pivot joint, which is part of a surgical microscope where the lenses are attached.
By accurate measurement of the displacement of arm movement, the surgeon can precisely position the microscope and provide the surgical team with more space to manoeuvre. The long arm needs to be continuously adjusted at the pivot joints to keep the field of view and the focus range of the microscope stable for the surgeon at all times. If the deflection from the reference area is too large, the system issues a switching signal and the controls will return the tripod arm back to its original position.
Capacitive displacement measurements are based on the principle of a perfect plate capacitor with two plate electrodes formed by the sensor and the adjacent measurement object. If a constant alternating current is flowing through the sensor capacitor, the amplitude of the alternating voltage on the sensor is proportional to the distance to the capacitor electrodes.
Capacitive displacement sensors of the capaNCDT 6019 series are designed specifically for OEM applications. Featuring a compact design and a high precision switching point that provides long-term stability, these capacitive sensors are available only from Bestech Australia in Australasia.