Device for calibrating and testing ring-shaped current clamps

Details Device for calibrating and testing ring-shaped current clamps Device for calibrating and testing ring-shaped current clamps

G - Physics

01

R

324/36

G01R 23/02 (2006.01) G01R 35/02 (2006.01)

Patent

CA 2001258

- 10 - ABSTRACT OF THE DISCLOSURE A device for calibrating and testing ring-shaped current clamps comprises a calibration housing (1) with an outer conductor (3a, 3b) enclosing the current clamp (2), and an inner conductor (5a, 5b) passing through the current clamp (2). The outer conductor (3a, 3b) encloses the current clamp (2) on all sides and is adapted to the shape of the current clamp (2). The calibration housing (1) also exhibits, with the current clamp (2) accommod- ated therein, an impedance ZL which is predetermined by a messuring system. These measures make it possible to measure the frequency response of the current clamp precisely, up into the GHz range. According to a preferred embodiment, the calibration housing (1) exhibits transitions which are conically tapered towards the connections (6, 7).

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