APPARATUS AND METHOD FOR TESTING THE INTERCONNECTION OF PHOTOVOLTAIC CELLS

摘要

Apparatus and method for contactless testing a closed loop electrical connection in particular suited for testing the interconnection of photovoltaic cells in a solar pane. The apparatus comprises two coils. The first coil is a driving coil (11) comprising at least one first winding (15) for generating a varying magnetic field in the area (14) enclosed by the closed loop electrical connection. The second coil is a detection coil (12) comprising at least one second winding (16) for generating a voltage when being subjected to the magnetic field generated by the current in the closed loop electrical connection. The apparatus further comprises a compensation loop (13) for intrinsically compensating the direct mutual induction of the first coil and the second coil. The compensation loop allows the use of uncomplicated electronics for testing the interconnection, which electronics can easily be implemented in a hand held device.

主权项

1. Apparatus for testing a closed loop electrical connection, the apparatus comprising
a first coil comprising at least one first winding enclosing a first coil area for generating a varying magnetic field in a loop area enclosed by the closed loop electrical connection, and a second coil comprising at least one second winding enclosing a second coil area for generating a voltage when being subjected to the magnetic field generated by the current in the closed loop electrical connection, a compensation loop for compensating direct mutual induction of the first coil and the second coil, which compensation loop at least partially covers one of the first and second coil areas or both the first and second coil areas.