Pickering Interfaces, a global provider of modular signal switching and simulation solutions, has expanded its 41-670 (PXI) and 43-670 (PXIe) series to include high-speed resolver simulation capabilities of up to 130,000 RPM. The update is designed to meet growing demand for accurate testing of advanced servo systems in industries such as aerospace, automotive, and defense.
Modern control systems increasingly rely on high-speed resolvers with excitation frequencies up to 80 kHz to improve signal fidelity, bandwidth, and response times. Traditional resolver simulations operating at lower speeds can risk missing critical bugs during embedded software testing, leading to decreased reliability.
The enhanced modules now support the simulation of multiple resolver pole pairs. For example, simulating a resolver with four pole pairs at 20,000 RPM translates to 80,000 RPM in electrical cycles. Pickering’s solution addresses these advanced requirements with modules capable of up to 130,000 RPM, improving accuracy in complex test environments.
“Rather than rely on FPGA approximations, our updated family of resolver simulators use actual transformers on board,” said Stephen Jenkins, Simulation Product Manager at Pickering Interfaces. “As a result, our modules deliver precise, real-world analog signals with high-resolution angle simulation, ensuring reliable performance even at the highest speeds.”
The 41-670 and 43-670 modules support both LVDT and RVDT simulations and come in configurations offering two or four banks. Each bank can simulate a single 5- or 6-wire VDT or resolver, or dual 4-wire versions using a shared excitation signal—enabling up to four 5- or 6-wire channels or eight 4-wire channels in total.
With high-channel density afforded by the PXI form factor, the modules allow for multiple channel simulations in a compact footprint. Built-in relays enable fault insertion by providing open or short circuits, while programmable phase delay can replicate imperfections in sensors or cabling.
All modules include a three-year warranty and long-term support, underlining Pickering’s commitment to reliable test solutions for critical sectors.
