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Current Probes

Current probes usually serve as a transducer by converting current to voltage. When selecting a current probe, it is important to consider the required frequency range for the test, the size of the harness to be measured, and the probe's sensitivity to measuring signals at the limit level.

Current probes work by placing a conductor that carries the current to the sensing window of the probe and then testing the probe's output voltage with the RF detector. The calibration factor of the current probe is called a transfer impedance curve and is given in W or dB(W). Each probe has a frequency range that is found in the impedance curve.

Current probes are convenient for establishing EMC compliance before beginning a test or while preparing for testing.

Avalon Test Equipment carries a variety of current probes to meet CISPR 25 standard requirements. Rent or purchase from Avalon and Test With Confidence®.

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Pearson 8705C Current Probe

The Pearson 8705C Current Probe for MIL-STD-461 CS114, CS115, CS116 supports a frequency Range 10 kHz to 400 MHz

A.H. Systems BCP-611 Broadband Current Probe

Individually calibrated probe measures conducted emissions from 10 kHz to 150 MHz and offers high current capabilities

A.H. Systems BCP-615 Broadband Current Probe

This probe is capable of measuring pulse currents up to 100 amperes with wide operating frequency of 10 KHz - 500 MHz.

Fischer F-55 Current Emissions Probe

10 kHz – 500 MHz, 350 Amps