Current Sensors and Converters

• Rogowski Coils

• Iron Core and Mu-metal Current Transformers (CTs)

• Hall Effect/Flux Gate (AC/DC) transducers

• Split Core (AC/DC) transducers

• Clamp Meters

Sensor Types

• Looking for a specific current sensor and or converter?

• We can source a suitable current sensor and or converter tailored to your application.

Rogowski Coils

Current Transformers

• Are commonly used to measure large currents (up to 10kA).

• Flexible and have a large aperture to measure thick cables or multiple cables.

• Ideal for measuring current trends rather than specific current values.

• High linearity across a large current range.

• Cheap and durable.

• Very accurate and used for measuring smaller currents (below 1kA).

• Iron core allows for tight coupling leading to higher sensitivity and better SNR.

• Low positional error and phase error.

• Small in size and can fit in tight spaces.

Hall Effect Transducers

• Can be used to measure both DC and AC.

• Has a large current measurement range.

• Wide linearity range.

What is the difference between sensor types?

What is linearity?

• Linearity is the degree to which the sensor’s output remains directly proportional to the input current across its specified measurement range.

• Rogowski coils remain linear with increasing current, but the voltages induced are low, leading to lower sensitivity.

• Iron Core CTs with no air gap produces a very high voltage due to tight coupling, however it is only linear for a small range.

• The Hall Effect transducer has a high linearity range but the flux will also saturate beyond its designed current range

• Need technical advice on which sensor is right for you?

• Integrators

• Current to Voltage Converters

• Voltage to Current Converters

Converters