Fluke Corporation

Gloria M Chun

Ginger M Woo

Ronald Steuer

Ricardo Rodriguez

Simon J Page

A sensor probe includes a body having first and second channels that are spaced apart and extend through the body approximately parallel to each other. A first end of a Rogowski coil is fixed within the first channel. The Rogowski coil passes through the second channel and loops back to the first channel where a second end of the Rogowski coil is selectively insertable into the first channel opposite the first end of the Rogowski coil. A non-contact sensor coupled to the body is positioned between the first and second channels to measure a parameter of an insulated conductor situated within the loop formed by the Rogowski coil. The size of an interior region within the loop is selectively adjustable by sliding movement of the Rogowski coil within the second channel.

Non-contact voltage measurement with adjustable size rogowski coil

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.

Sensor probe with combined non-contact sensor and a Rogowski coil

Non-contact voltage measurement with adjustable size Rogowski coil

A sensor probe includes a body, a sleeve that is moveable along the body between open and closed positions, a clamp having first and second jaws that contain an interior region within the clamp, and a non-contact sensor coupled to the sleeve and positioned at or near a perimeter of the interior region within the clamp. When the sleeve is in the open position, the first and second jaws create a gap that allows an insulated conductor to pass into the interior region within the clamp. When the sleeve is in the closed position, the first and second jaws close the gap and thereby close the interior region within the clamp. The size of the interior region is reduced when the sleeve is moved toward the closed position. The non-contact sensor is configured to detect an electrical parameter of the insulated conductor without requiring galvanic contact with the conductor.

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Seattle, WA, United States of America

Gloria M Chun