I need to collect at least 60uA via capacitive coupling between a high tension Cu cable with PVC insulation and a connector that is acting as the opposite face of the capacitor (can be a copper plate wrapped around the wire insulation or some turns of Cu wire around the insulation, or any other way).
Here the details:
- The cable insulation is made of PVC (dielectric constant 3.19) and is 3mm thick.
- The inner cable is made of copper 1mm thick.
- The voltage provided to the cable is 14 000 V.
- the voltage is provided by an ignition coil, with about 1000 spark each minute
How can I act? is it possible to collect the 60uA in any other way?