Pickering Interfaces Expands Analog Output Modules for Enhanced HIL Testing

Enhancements in Analog Output Modules by Pickering Interfaces

Pickering Interfaces, recognized as a leader in modular signal switching and simulation solutions, has recently expanded its analog output portfolio by introducing three innovative PXI/PXIe modules. These new additions are set to redefine functional testing and hardware-in-the-loop (HIL) applications.

The newly launched analog output modules are crafted to closely mimic real-world sensor or signal behavior, allowing engineers to execute more accurate and reliable automated tests. Unlike ordinary voltage sources or arbitrary waveform generators, these modules deliver unparalleled realism in testing environments.

Feature Overview of New Modules

The highlight of these modules includes multi-channel waveform generators, precision digital-to-analog converter (DAC) outputs, and high-density thermocouple simulators. Collectively, they empower engineers to effectively simulate analog, sensor, and waveform conditions in a compact and open-platform framework. Here’s a closer look at each module:

1. DAC Modules

The 41-770 PXI and 43-770 PXIe DAC modules offer up to four fully isolated analog output channels contained within a single 3U PXI/PXIe slot. Engineers can program each channel independently, covering diverse voltage and current ranges with voltage outputs reaching up to ±40 V and current outputs up to ±20 mA. Moreover, these modules simulate open-circuit conditions, making them perfect for replicating sensor failures during fault-injection testing. A hardware interlock ensures added protection for the device under test (DUT) along with the wider test system.

2. Waveform Generators

The 41-625 PXI and 43-625 PXIe multi-channel waveform generators facilitate up to 32 independent output channels in a single 3U PXI/PXIe slot. These generators support waveform creation from DC to 300 kHz, allowing for the simulation of accelerometers and other multi-channel conditions. Each channel features its own memory for sine waves and standard or user-defined arbitrary waveforms, coupled with software-controlled frequency adjustments utilizing Direct Digital Synthesis. Additionally, trigger mechanisms allow other instruments to initiate waveform creation or frequency sweeps seamlessly.

3. Thermocouple Simulator Modules

The PXI 41-761A analog output and thermocouple simulator modules provide precise thermocouple sensor simulation down to microvolt levels, featuring built-in fault insertion capabilities. With independently isolated, bi-wire low-voltage outputs, these modules cater to common thermocouple ranges and support various cold junction configurations, adeptly managing common-mode voltages for authentic sensor-level simulation. Each slot accommodates up to 32 fully isolated channels, providing substantial thermocouple simulation without the need for external switching or other system expansions.

Application and Compatibility

Designed specifically for M-HIL simulations, functional testing, sensor simulations, and even production tests, these modules deliver software-controlled electrical stimuli that are vital for embedded controllers and DUTs. They are available in both PXI and PXIe formats, and they are compatible with Windows and Linux drivers, along with APIs for popular programming languages including C, Python, C#, MATLAB, Simulink, and LabVIEW.

Stephen Jenkins, the Simulation Product Manager at Pickering, commented on these advancements, stating, "These new analog output modules significantly bolster Pickering's capabilities in offering realistic signal and sensor simulations across various functional test and HIL applications, ensuring high channel density, precise performance, and long-term reliability in modular PXI/PXIe platforms."

All products under Pickering Interfaces come with a three-year warranty and extensive support for longevity in product life. For more information regarding pricing and availability, interested parties can visit Pickering Interfaces.

In conclusion, with these new PXI/PXIe modules, Pickering Interfaces continues to lead the industry in terms of high-quality, innovative solutions, thereby enhancing the effectiveness of automated testing and simulation processes in various engineering applications. This commitment not only helps to streamline testing efficiency but also minimizes risks associated with obsolescence and system complexity.