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High Frequency Current Probes and Rogowski Coils

CWT LF Wideband Current Probe
CWT LF low frequency wideband current probe 0.01Hz to 10MHz, tested at 10kV

The CWT LF current sensors are rugged clip around flexible coil wideband current probes with zero phase shift at the power frequencies - ideal for power measurement. The CWT LF uses Rogowski Coil technology for wide bandwidth and wide dynamic range for faithful conversion of measured current to an isolated voltage o/p waveform, intended for use with oscilloscopes, data loggers, DAQs and power analyzers

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CWT
CWT Rogowski Current Probe, Models 1A to 300kA, bandwidth 0.1Hz to 10MHz, tested at 10kV

The CWT current sensors are rugged clip around flexible coil wideband current probes, using Rogowski Coil technology for wide bandwidth measurement and faithful conversion of current to voltage, intended for use with oscilloscopes, data loggers, transient recorders, power meters and power analyzers

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CWT Mini
CWT Mini HF - Rogowski coil current sensing probe 1A to 300kA, 100mm or 200mm coil sizes, bandwidth 30MHz

The CWT Mini HF has an increased bandwidth to 30MHz, this current probe utilizes a patented high performance Rogowski Coil Sensor - at 3.5mm thin enough to fit in very confined spaces - often between the legs of a power semiconductor switching device

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CWT Mini
CWT Mini 50HF - 50MHz Rogowski coil current sensing probe NEW

The CWT Mini 50 HF current probe is our latest high performance Rogowski Coil sensor with extended bandwidth, thin enough (typical cross section 3.5mm) to fit in very confined spaces - between the legs of high current power switching devices or even GaN applications

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CWT Mini
CWT Mini Miniature Current Probe 17MHz

This original CWT Miniature current probe utilizes a compact Rogowski Coil sensor, thin enough to fit in very confined spaces - and between the legs of some power semiconductor switching device. Available in 2kV and 5kV ratings

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CWT Ultra Mini
CWT Ultra Mini 1.7mm thick current probe 30MHz

The "Flagship" CWT Ultra Mini current probe has the smallest Rogowski Coil sensor in the world at 1.7mm dia. This is thin enough to fit around pins on some surface mount devices with minimal looping. The small sense coil easily fits between the legs of a T0220 semiconductor power switching device

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CMC Rogowski Current Probe
CMC Rogowski current sensing probe is optimized for detection of common mode currents and bearing spark erosion - detecting issues before failure occurs

Variable Frequency Drives (VFDs or VSDs) used to control AC motors, produce large high frequency currents that may appear on the machine shaft or flowing from cables to ground - the CMC Probe enables analysis of this phenomenon. These currents are the result of capacitive coupling from motor windings to casings - where the drive PWM voltage is applied to the motor windings. The current flowing from windings to the shaft causes currents to flow through the motor bearings to ground. This spark erosion is detrimental and can be measured with the CMC Current probe

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I-Probe IP520
I-Probe - IP520 Non-contact current probe 50MHz

The Powertek I-Probe IP520 is a non-contact, non-clamp current probe, allowing fast easy measurement of currents in component legs, PCB tracks and cables. It works by placing the insulated tip of the probe onto a PCB track. The current flowing in the track can be investigated and measured revealing any unwanted effects

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