Pickering Interfaces Introduces High-Speed PXI Resolver Simulation Modules for Advanced Servo System Testing
In a significant advancement for the aerospace, automotive, and defense industries, Pickering Interfaces has expanded its renowned 41-670 (PXI) and 43-670 (PXIe) LVDT, RVDT, and resolver simulation module families. These updated modules now support high-speed resolver simulations capable of achieving rotation speeds up to 130,000 revolutions per minute (RPM). This enhancement addresses the growing demand for precise and reliable testing solutions for advanced servo systems that are integral to modern control applications.
The Growing Need for High-Speed Resolver Simulation
Modern control systems in critical sectors such as automotive, aerospace, and defense increasingly rely on high-speed resolvers with excitation frequencies reaching up to 80 kHz. These resolvers enhance signal bandwidth, reduce noise susceptibility, and improve dynamic response—key attributes for ensuring optimal system performance. However, testing embedded software with lower-speed resolver simulations often leads to reduced fidelity and can result in undetected software bugs.
The updated 41-670 and 43-670 modules bridge this gap by enabling high-speed simulations that closely mimic real-world conditions. For instance, when simulating multiple resolver pole pairs, the modules can achieve electrical cycle speeds of up to 80,000 RPM for systems with four pole pairs. This ensures accurate testing of electromechanical resolvers, which typically have maximum rotational speeds of 20,000 RPM.
Cutting-Edge Technology for Real-World Accuracy
Unlike FPGA-based approximations used in some competing products, Pickering Interfaces’ updated resolver simulators utilize actual transformers on board. This approach delivers precise analog signals with high-resolution angle simulation, ensuring reliable performance even at the highest speeds. “Our goal was to provide a solution that mirrors real-world conditions as closely as possible,” explained Stephen Jenkins, Simulation Product Manager at Pickering Interfaces. “By incorporating actual transformers, we ensure that our modules deliver the accuracy and reliability required for rigorous testing environments.”
The 41-670 (PXI) and 43-670 (PXIe) modules are designed to simulate both linear variable differential transformers (LVDTs) and rotary variable differential transformers (RVDTs), as well as resolvers. They offer high-speed simulation capabilities of up to 130,000 RPM, making them ideal for applications requiring exceptional precision and speed.
Versatile Design for Comprehensive Testing
These modules are available in two configurations: the 41/43-670-303, which features two banks, and the 41/43-670-301, equipped with four banks. Each bank can simulate the output of a single 5- or 6-wire VDT or resolver, or dual 4-wire outputs using a shared excitation signal. This flexibility allows users to simulate up to four channels of 5- or 6-wire devices or eight channels of 4-wire devices, depending on their specific testing requirements.
One of the standout features of these modules is their high-channel density, which enables the testing of multiple resolver channels within a compact footprint. Additionally, built-in relays allow for short or open circuits on each channel’s inputs and outputs, reducing the need for external switching to meet fault insertion requirements. This capability is particularly valuable for simulating imperfect sensors and cabling, as the programmable phase delay can artificially offset single or multiple outputs to replicate real-world imperfections.
Applications Across Critical Industries
The ability to simulate high-speed resolver outputs makes these modules indispensable for testing advanced servo systems in industries where precision and reliability are paramount. In the aerospace sector, for example, these modules can be used to validate flight control systems, while in automotive applications, they are ideal for testing electric power steering and advanced driver-assistance systems (ADAS). Similarly, in defense applications, the modules can support the rigorous testing of missile guidance systems and other mission-critical equipment.
Commitment to Quality and Support
Pickering Interfaces stands behind its products with a standard three-year warranty, underscoring its commitment to quality and customer satisfaction. The company also offers guaranteed long-term product support, ensuring that customers can continue to rely on their investments for years to come. Pricing and availability details for the 41-670 and 43-670 modules can be found on Pickering Interfaces’ website at www.pickeringtest.com.
A Game-Changer for Advanced Servo System Testing
With the introduction of these high-speed PXI and PXIe resolver simulation modules, Pickering Interfaces has once again demonstrated its leadership in modular signal switching and simulation solutions. By addressing the challenges posed by modern high-speed resolvers, these modules enable engineers to conduct more accurate and comprehensive tests, ultimately leading to safer and more reliable systems across critical industries.
Whether you’re working in aerospace, automotive, or defense, the 41-670 and 43-670 modules provide the tools you need to push the boundaries of performance and innovation. Their combination of precision, versatility, and reliability makes them an invaluable asset for any organization focused on delivering cutting-edge technology.
About Pickering Interfaces
Pickering Interfaces designs and manufactures modular signal switching and simulation technologies for electronic test and verification. We offer the industry’s most extensive range of switching and simulation products for PXI, LXI, and PCI applications. We also provide cable and connector solutions, diagnostic test tools, application software and software drivers created by our in-house software team to support these products.
