I would like to measure short distances up to 3" (7.5 cm) with perhaps an accuracy of 0.1" (2.5 mm). I noticed that commercial inductive sensors that I have found only measure up to a few tenths of an inch (about 0.5 cm).
Is this possible using any sort of inductive or capacitive measurement method? There could be opaque obstacles (not electrically conductive) in the path to the "target" so ultrasound and light based methods would not work.
Thanks,
Dale
Is this possible using any sort of inductive or capacitive measurement method? There could be opaque obstacles (not electrically conductive) in the path to the "target" so ultrasound and light based methods would not work.
Thanks,
Dale