NEMP testing Probe
NEMP (Nucleair Electro Magnetic Pulse): Development of tooling to perform and measure NEMP for mainly militairy use. The development of a Ultra Wideband balanced emission probe with a phase shift stable signature in access of 3GHz. Also the construction and simulation of two different large septi based upon thin lead technology to test large objects is the main part of this discipline.
Visualisation of EM-fields:
After testing an apparatus for radiated emission the operator in some cases has to examine the systems radiation patterns. When analysing these patterns, a tool that can visualize the EM-field would be very appreciated. At specific frequency radiation patterns can be visualized by 'Polarplots'. This gives a good indication at system level. At component level (point of origin) a different kind of visualisation is helpfull. By inter-polarization and a raster scan (with EM-probes) a detailed map can be generated. This method is refined by BICON Laboratories for not only small-scaled objects (PCB, filters, etc.) but also for Site-Surveying a whole plant or area.
Antenna systems for emission & immunity testing:
BICON Laboratories doesn't only perform measurements for CE-certification but also EMC-measurements in general. This calls for different approaches at frequencyband-, distance- & performance level. When developing different kinds of antenna-systems the ability to calibrate and generate radiation patterns is a must to analyse the performance.
Septum for semi & fully anechoic chambers:
When testing for radiated immunity at high levels a substantial investment in amplifier systems is required. Because of the mismatch that occures at lower frequencies the power distribution is not very efficient. For this purpose there are all kinds of test-cells available on the market, such as TEM-cells, GTEM-cells, CDN & injection clamps, etc. But for relative large equipement (bigger than a Personal Computer) these systems will have large dimensions of their own. By placing a triangular shaped septum in an anechoic chamber a relative high EM-field can be generated without the power loss caused by impedance mismatch.
Relations between fully/semi anechoic chambers and Open Area Testsite (at different distances):
When testing in fully anechoïc chambers (compact rooms) there is no height scanning of the antenna and there is no capacitive coupling of the Equipment Under Test (EUT) with the groundplane. Additionally there are different antenna-to-EUT distances when testing for different standards (3, 5, 7, 10 & 30m). This subject is heavily debated by different parties. BICON Laboratories is joining this debat by performing all kinds of relative measurements. After some (minor) adjustments to already excisting compact rooms a very good comparison can be made between measurements in compact rooms (modified) and in Semi anechoïc chamber (at Open Area Testsites).
BICON research projects developed a fully automated test system for BATE.
BICON research projects developed a fully automated test system for BATE. The core consists of software driven High Voltage Relaying Unit (HVRU). It can perform the electrical tests conform standards of the low voltage directive. Easy-to-use software navigates the operator through all tests and generates a report of the measurement results. All products with 1 and 3 phase mains connections and a maximum rated current of 32 (!) amps can be connected to the HVRU, which fully automated performs ground bond, isolation resistance, line leakage, residual voltages and high pot tests. Complete specifications are available upon request.
