Test and Measurement in the Autonomous Era

The landscape of transportation is undergoing a radical transformation. What were once considered science fiction concepts are now everyday realities in vehicles, aircraft, and mobile robotic systems. The shift towards autonomous mobility, encompassing everything from self-driving cars and trucks to sophisticated unmanned aerial vehicles and autonomous mobile robots (AMRs), promises unprecedented efficiency, safety, and new possibilities for transporting goods and people.

It is estimated that over 54 million cars with at least some level of automation are in operation worldwide. Autonomous vehicles have been in development for more than a century. In 1986, German scientist Ernst Dickmanns developed an autonomous Mercedes van capable of detecting cars, people, and objects. Google launched its self-driving car concept, now known as Waymo, in 2009. As of late 2024, Waymo operates over 1,500 autonomous vehicles across cities like San Francisco, Phoenix, Los Angeles, and Austin.

The future of autonomous vehicles depends entirely on one critical factor: absolute precision and reliability, validated through rigorous testing and measurement. Unlike human drivers or pilots who can adapt to unforeseen circumstances, autonomous systems must perform reliably under all conditions. This makes precision test and measurement solutions indispensable.

Interface, a leader in force and torque measurement, is at the forefront of enabling this autonomous revolution. We have provided high-accuracy sensors and instrumentation to automotive, aerospace, and industrial manufacturers for decades. As autonomy integrates into these fields, Interface is uniquely positioned to support the complex testing needs of next-generation vehicles for use across land, sea, and air.

Test and Measurement in Autonomous Systems

The intelligence of an autonomous vehicle lies in its ability to perceive its environment, make decisions, and execute actions flawlessly. This intricate process is built upon a foundation of data from various sensors and the precise control of mechanical systems. Any inaccuracy or failure in these components can have severe consequences. Therefore, comprehensive testing is not just a quality control step but a fundamental safety and functionality requirement.

Accurate measurement of physical forces and torques is essential for understanding how autonomous systems interact with their environment and ensuring their mechanical components perform as designed. This includes everything from the forces exerted by robotic grippers to the torque generated by electric motors and the structural loads experienced by the vehicle chassis.

Interface provides a suite of high-precision test and measurement products tailored to the specific demands of different autonomous vehicle platforms.

Autonomous Vehicles (AV) Testing

The development of self-driving cars and trucks involves extensive testing of powertrain components, braking systems, steering mechanisms, and structural integrity under various load conditions. Interface load cells measure forces on various autonomous vehicle parts, from brake pedals and suspension systems to seat belts and crash test walls. Our torque transducers evaluate motor performance and steering system feedback. Specialized sensors, like multi-axis load cells, help analyze complex forces and moments on components like seats and chassis points. Autonomous vehicle testing focuses on performance validation, safety testing, durability, fatigue analysis, and component characterization. Gather more insights in Interface Validates Trends in Automotive Test and Measurement.

Drones (Unmanned Aerial Vehicles) Testing

Ensuring stable flight, payload capacity, and reliable operation in diverse atmospheric conditions requires precise force and weight measurements. Interface load cells are ideal for measuring payload weight, propeller thrust, and the forces exerted on wing structures during aerodynamic testing. Engineers and testing labs zero in on aerodynamic performance, payload capacity verification, thrust measurement, and structural load analysis. Check out: Force Measurement Keeps UAVs Flying High

AMRs (Autonomous Mobile Robots)

These robots, used in logistics, manufacturing, and other industries, require precise control over movement, gripping, lifting tasks, and accurate payload management. Mini load cells are used for precise object weighing and payload monitoring. Torque transducers measure rotational forces in robotic joints and drive systems, which are crucial for controlled movement and gripping. Multi-axis sensors provide comprehensive force and torque data for complex robotic arm movements and stability analysis. Read more: How Force Measurement is Driving AMR Innovation. Test and measurement programs are critical for calibrating gripping forces, testing payload capacity, determining center of gravity, analyzing navigation forces, and monitoring long-term performance.

Interface Solutions Provide Support for Autonomous Vehicle Tests

With decades of experience in automotive, aerospace, and industrial automation, Interface has deep insight into the specific needs of autonomous vehicle testing. The most common is component testing, which involves isolating and testing individual parts to ensure they meet vehicle design specifications. System integration testing evaluates how different components function within the larger autonomous system. Performance testing measures key operational metrics such as speed, efficiency, power output, and responsiveness in all moving vehicles.

Autonomous vehicles (AVs) require extensive durability and lifecycle testing, subjecting components and systems to prolonged use and stress to predict lifespan and identify potential failure points. Regulations and safety requirements necessitate rigorous compliance testing to guarantee that autonomous vehicles meet stringent regulatory standards for safe operation.

The Interface Advantage: Accuracy, Reliability, and Expertise

Choosing Interface products for autonomous vehicle testing offers distinct benefits. Our sensors provide the high-fidelity data required for critical validation and calibration processes. Interface products are known for their robustness and consistent performance, which are essential for demanding testing environments.

Interface provides a wide range of sensor technologies for autonomous vehicle testing, including:

• Load Cells
• Mini Load Cells
• Torque Transducers
• Multi-Axis Sensors
• Instrumentation
• Data Acquisition Systems
• Wireless Telemetry Systems
• Custom Sensors

Interface’s wide range of standard and custom solutions allows us to meet unique testing challenges across different autonomous platforms. Modern instrumentation and wireless options facilitate efficient data acquisition and integration into digital testing workflows.

The Road Ahead

As autonomous technology advances rapidly, the complexity of these systems will only increase. This necessitates an ongoing commitment to sophisticated test and measurement solutions. Interface is dedicated to innovating alongside the pioneers of autonomous mobility, providing the essential tools to ensure the vehicles’ safety, reliability, and performance that will shape our future.

From the precision required for a drone’s delicate delivery to the robust testing needed for a self-driving truck, Interface provides the foundational measurement solutions that make the autonomous era possible. Review our case study, Interface’s Crucial Role in Vehicle and Urban Mobility Markets.

Contact Interface today to explore how our test and measurement solutions can support your autonomous vehicle testing needs.