Sensor probe with combined non-contact sensor and a Rogowski coil
AssigneeFluke Corporation
InventorsRonald Steuer, Ginger M. Woo, Gloria M. Chun, Simon J. Page
Life of this patent
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Abstract
One or more implementations of the present disclosure are directed to sensor probes of measurement systems for measuring a plurality of electrical parameters, (e.g., voltage, current) of a conductor and methods for measuring same. In at least one implementation, the sensor probe integrates a Rogowski coil and a non-contact voltage sensor that are arranged relative to each other such that when positioned to measure a conductor, such as a wire, the Rogowski coil and the non-contact voltage sensor are held in proper position for measurement.
Claims20
A sensor probe, comprising:
- a Rogowski coil forming a loop having first and second leads at opposing ends of the loop, the loop having a central region configured to receive a conductor;
- and
- a non-contact sensor coupled to the Rogowski coil, the non-contact sensor including a non-contact sensor element and a clamp having a pair of clamping jaws, the pair of clamping jaws positioned to hold the conductor in the central region of the loop, wherein the non-contact sensor element is configured to press against the conductor to sense an electrical characteristic of the conductor.
A measurement system, comprising:
- a sensor probe configured to sense an electrical parameter in a conductor, the sensor probe including:
- a Rogowski coil having first and second leads at opposing ends, the Rogowski coil having a central region configured to receive a conductor to be tested;
- a non-contact sensor coupled to the Rogowski coil, the non-contact sensor including a non-contact sensor element and a clamp having a pair of clamping jaws, the pair of clamping jaws positioned to hold the conductor in the central region of the Rogowski coil, wherein the non-contact sensor element is configured to press against the conductor to sense an electrical characteristic of the conductor;
- and
- a measurement instrument operatively coupled to the sensor probe, the measurement instrument including control circuitry configured to send signals to and receive signals from the sensor probe.
A method, comprising:
- holding a wire with a clamp of a sensor probe such that (1) a non-contact sensor of the sensor probe is placed within a threshold distance to the wire and (2) the wire is placed in a central region of a Rogowski coil of the sensor probe;
- and
- while the non-contact sensor of the sensor probe remains within the threshold distance and while the wire is in the central region of the Rogowski coil, sensing at least one electrical parameter of the wire using the sensor probe.
Dependencies are inferred from the claim text.