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Bulk Current Injection Probes

Bulk current injection probes are used to inductively couple large RF currents into conductors passing through. They come in two different styles, a clamping style that can be used for hard to access cable bundles and a window style to pass wires and cables through. Signal, control, and power circuits of EUT (equipment under test) are the conductors when testing for conducted immunity. Bulk current injection probes operate as a single turn primary, multiple turn secondary transformer, by placing low series impedance in the probed power line while pushing a functional signal to a 50ohm receiver. The ratio of output voltage into a standard load divided by the net current moving through the probe equals the current probe's transfer impedance. MIL-STD-461, IEC 61000-4-6, and ISO 11452-4 commonly require the injection of low-level RF signals and high-frequency current into wires and cable bundles, making a current injection probe an essential item to adhere to testing requirements.

Avalon Test Equipment carries a variety of bulk current injection probes from top manufacturers (Com-Power, A.H. Systems, and more) to meet your testing requirements. Rent from Avalon and Test With Confidence®.

BCI probes

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Fischer F-120-1 Bulk Current Injection Probe

The Fischer Custom Communications FCC F-120-1 Bulk Current Injection Probe has been designed to extend the use of conducted immunity testing over the bandwidth of 10 kHz – 175 MHz

Teseq CIP 9136A Bulk Current Injection Test Clamp

Wide frequency range 10 kHz - 400 MHz High power handling (up to 1 kW) Ideal for automotive BCI testing e.g. ISO 11452-4, RTCA/DO-160 section 20, MIL-STD-461 and manufacture‘s requirements Meets IEC/EN 61000-4-6 Replacement for CIP 36A & 37A as specified in Defence Standard 59-41

Schaffner INA-721-100, 150 Ohm Adapter Set for IEC 61000-4-6 Calibration Jig/BCI Test

INA 721-100: 150 Ohm to 50 Ohm Adapter (N-Type) INA 721-150: 150 Ohm Terminaction (N-Type) Ideal for IEC 61000-4-6 BCI Test

Fischer F-130A-1 Bulk Current Injection Probe

1MHz - 400MHz Frequency Used for BCI testing in accordance With automotive specifications like SAE J15447 CW input power rating is 100 watts for 30 minutes

Fischer BCICF-1 Bulk Current Injection Probe Fixtures

Part of the test equipment required by most of the Bulk Current Injection test procedure specifications. Allows the user the quickly and easily calibrate the injection probe prior to performing compliance testing.

Fischer BCICF-6-150 Bulk Current Injection Probe Fixtures

Designed for the IEC 61000-4-6 Ed 4.0, section – that states “…the increase of the transmission loss of the test jig, produced by the insertion of the Current Clamp, shall not exceed 1.6 dB”. This 1.6 dB requirement is verified by subtracting the insertion loss of the calibration fixture without the Clamp in place from the fixture insertion loss with the Clamp in place.

Com-Power CLCI-100 Current Probe

The Com-Power Current Injection Probes are used for RF conducted immunity testing per IEC 61000-4-6, CISPR 16-1-2, RTCA DO-160, and MIL-STD 461.