HBK is introducing its new approach to power measurement at Automotive Testing Expo Europe, and its business development manager, Klaus Lang, will present the solution on the Technology Presentation Stage on Day 3 (Thursday, June 15) at 11:10 (Hall 8).
Safety and EMC are two well-known concerns when assessing electric drives, noted Lang ahead of his presentation, adding, “Our new approach of using fiber-optical satellites in front of our power analyzers to separate dangerous voltages from the instrument and the user and – at the same time – to eliminate EMC issues, will make customers’ lives significantly easier.”
As well as the additional layer of safety and eradication of EMC problems, the solution prevents the results from being influenced by noise, leading to greater accuracy.
Lang explained how the concept works: “Typically, all power analyzers are connected to the test object – be it an inverter or an electric motor – with long electric cables. These are either unshielded – creating lots of noise – or they are shielded and will limit bandwidth, leading to measurement errors.
“The only solution until now was to put the power analyzer as close to the DUT as possible – not a very practical solution. The new generation of fast-switching SIC inverters will make these problems even worse. You can establish a very thorough grounding/shielding and also a safety concept. Both are doable, but lots of work and expensive.
“Our new satellites solve these problems out of the box. As another benefit, accuracy will be much greater as cable reflections will be minimized and induced noise will not impact test results.”
The new satellites can be connected to all existing HBK power analyzers.
HBK can be found at Booth 8401 and you can read more about the company’s technology here