Device Under Test interface
key aspect of these test systems is the Device Under Test (DUT) interface ā the connection point that links the test rig to the product being tested. This interface hardware plays a critical role in achieving accurate and repeatable testing by reliably connecting the DUT to measurement and simulation equipment. By connecting a controller or device to a test system that simulates real-world operating conditions, the DUT interface allows the unit to be exercised as if it were in the field. In short, HSLās engineering expertise in custom rigs and DUT interfaces enables thorough testing with high fidelity to actual use conditions.


Precision Testing for High-Reliability Systems
Custom test rigs significantly improve accuracy in system validation, which is crucial for high-reliability applications (e.g. automotive safety systems or aerospace controls). Unlike one-size-fits-all equipment, a bespoke rig can be built to replicate the DUTās real operating environment with precision, yielding precise and reliable test results. Engineers can simulate exact voltages, loads, and signals that the device will encounter, ensuring that measurements and behaviors observed during testing are truly representative of real-world performance. Equally important, a well-designed DUT interface enables real-world simulation and fault detection.
Automation for Efficiency & Compliance Validation
Automation is a cornerstone of HSLās test solutions, implemented to boost efficiency and ensure consistent results. Automated test rigs execute test sequences exactly the same way every time, drastically reducing the risk of human error and variability in measurementsā.
This repeatability not only improves the accuracy of test data but also saves time ā complex test routines can run unattended and around the clock, accelerating development cycles. Importantly, automation is invaluable for regulatory compliance and certification testing.
Tailored Solutions for Specific Applications
HSLās custom test rigs and DUT interfaces are tailored to the needs of each industry and application, providing flexibility to accommodate a wide range of devices and standards. The engineering team adapts each design to the DUTās form factor, power requirements, and communication interfaces, ensuring a perfect fit for its intended use.
This bespoke approach allows HSL to deliver test solutions optimized for everything from automotive electronics to industrial machinery and aerospace systems.
Robust test setups
Industrial systems such as factory automation controllers, power converters, or heavy machinery electronics often demand robust test setups. HSL designs industrial test rigs to handle high voltages, currents, and diverse sensor/actuator interfaces encountered in this sector.
Our custom rigs can safely exercise high-power equipment ā for instance, they are capable of testing devices up to 1Ā kV and 1Ā kA to cover heavy-duty power and motor control units. In addition, DUT interfaces can be configured for industrial communication standards (fieldbuses, fiber-optic links, etc.) and harsh environment sensors.