The sensors of ECD-3 and ECD-3-nano are both able to detect very small expansions of the electrodes. The main difference between the two devices lies in the detection resolution. The ECD-3 uses an LVDT sensor with a resolution of 50 nanometers with a maximum displacement range of 500 μm. The ECD-3-nano uses a capacitive sensor system with a resolution of 5 nanometers and a maximum displacement range of 250 μm.
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