Capacitive displacement sensor has bar graph to ease setup
Lion Precision’s CPL490 Capacitive Displacement Sensor measures position/displacement with 50 picometer precision or less. Relative to the noncontact sensor’s measurement range, that translates to a resolution value of less then seven ppm even at 15 kHz bandwidth.
Previous models were capable of similar precision but only when high frequency components were filtered out of the measurement signal. The CPL490 can resolve target position changes of less then 100 picometers while objects are moving at 15 kHz. When bandwidth is increased to 50 kHz, the precision is still less than 0.3 nanometers.
For ease of setup, the CPL490 features a bar graph display indicating probe position within its calibrated range and an adjustable offset to "zero" the output. Bandwidth is selectable allowing the user to maximize the relationship between bandwidth and resolution for each application. The Elite Series is a modular system also offering signal processing and other capacitive sensor modules.
– Edited by CFE Media. See more Control Engineering sensor and vision products.