Optical interface aids EMC measurements

Edited by the Electronicstalk editorial team Jan 22, 2003

Link Microtek has introduced an optical interface that enables high-speed transfer of electromagnetic field measurements from a probe back to a PC up to 100m away.

Link Microtek has introduced an optical interface that enables high-speed transfer of electromagnetic field measurements from a probe back to a PC up to 100m away.

Manufactured by Narda Safety Test Solutions, the EMC-300 optical interface is ideal for applications such as EMC immunity testing in an anechoic chamber, as well as TEM-cell and stripline measurements.

Designed for full remote control by the PC via standard F-SMA fibre-optic cables, the new unit enables measurements to be displayed on the computer screen or stored for subsequent processing and analysis.

Measurements can cover a wide frequency range of 3kHz to 60GHz, depending on which of Narda's EMR series of isotropic field probes is used.

Featuring a high field-sampling rate of 38.4kHz, the EMC-300 carries out simultaneous processing of measurements for the x, y and z axes and can display the sum of these three inputs in various units of measure.

Results are reliable and stable - even at low field strength levels - because of the high sensitivity of the EMC-300, its patented auto-zero circuit, and an adjustable filter that suppresses spurious pickup from any nearby 50Hz/60Hz sources.

With overall dimensions of just 120 x 85 x 35mm, this compact unit is designed for easy mounting on a commercial tripod.

It is supplied with calibration certificate, charger for the integral NiMH batteries, Probe Tools configuration software and an operating/programming manual.