Accelerometers, Force Sensors, Strain Sensors, Load Cells, and Signal Conditioners
RLDA testing turns real-world road inputs into usable data for vehicle durability, ride quality, and road load replication programs. Sensors mounted near the wheel end, suspension or chassis must maintain signal quality through harsh road test conditions and tight installation constraints. PCB provides rugged sensors for automotive road load testing, supporting clean, repeatable data from the road to the lab.
How RLDA Data Supports Vehicle Development and Validation
Road load data acquisition helps engineers understand how vehicles respond to real operating conditions before production. The data collected during RLDA testing is used for road load data analysis, durability test profiles, vehicle design validation, ride quality evaluation, and failure-mode prediction. Accurate road load measurement helps improve correlation between proving ground, simulator, and laboratory testing, so validation programs better reflect real-world vehicle use.
Choosing Sensors for Road Load Data Acquisition
RLDA sensor selection depends on what must be measured, where the sensor will be installed and how the data will be used after the test. PCB and Endevco sensor technologies support force, acceleration, strain, angular rate and full-motion measurements across road, track, simulator and lab environments.
Spindle Force and Motion Data for Road Load Replication
Spindle force and motion are key measurements in road load acquisition because they define how road input enters the vehicle. These multi-axis measurements are often used to drive vehicle simulators for durability validation, making phase and amplitude accuracy critical. If the recorded data does not accurately represent the original road event, the test may produce misleading failure-mode predictions. PCB sensors ensure the accuracy of both amplitude and phase in a robust package suited for ambient test environments.
VC MEMS Accelerometers for RLDA and Automotive Durability Testing
VC MEMS accelerometers are used in RLDA testing when the measurement includes low-frequency motion or long-duration events. Their DC response makes them useful for spindle response, ride quality studies, and vehicle dynamics measurements that extend below the range of traditional dynamic vibration sensors.
PCB Series 3753A is a triaxial VC MEMS accelerometer designed for low-frequency automotive motion measurement in compact installation spaces. With DC response, a low-profile anodized aluminum package and rugged IP67 protection, Model 3753A is well-suited for RLDA testing, ride quality studies, vehicle dynamics work, and demanding automotive test environments.
PCB Series 3711F single-axis and Series 3713F triaxial single-ended VC MEMS accelerometers are designed for measuring low-frequency spindle response under harsh conditions. Hermetically sealed in a titanium housing, these VC MEMS accelerometers are engineered for demanding RLDA applications, providing robust resistance to high-frequency overloads caused by abrupt road inputs, while maintaining low sensitivity to base strain and transverse acceleration effects.
PCB Series 3741F single-axis and Series 3743G triaxial differential VC MEMS accelerometers are also used in RLDA applications where differential output and common-mode noise rejection support accurate, repeatable performance in extreme measurement environments.
ICP® Strain Sensors for Road Load Data Acquisition
Stress profiles on vehicle components and structures are often required in road load data acquisition. PCB Piezotronics offers ICP® strain sensors in Series RHM240 and Series 740 for non-invasive strain measurement in RLDA testing.
These strain sensors measure strain along the structure to which they are mounted and can be powered by any ICP® signal conditioner. This makes them easy to integrate into automotive road load test setups where engineers need structural stress data without significantly modifying the component under test.
Angular Rate Sensors and 6DoF Sensors for Vehicle Dynamics Testing
Angular rate sensors help capture pitch, roll and yaw behavior, giving test teams additional insight into how the vehicle responds during handling, ride quality and durability-related tests. PCB Piezotronics offers angular rate sensing through the Endevco product line, including Endevco Models 7310A and 7330 for rotational velocity measurements used in vehicle dynamics testing.
Endevco Model 7360A is a 6 degrees of freedom (6DoF) sensor that combines three axes of acceleration and three axes of rate sensing for advanced vehicle testing applications. This allows engineers to capture linear and rotational motion from a single sensor package when full-motion vehicle response data is required.
Get Help Selecting RLDA Sensors
Need help selecting sensors for your RLDA test setup? Our field application engineers can help you compare options and identify the right measurement approach for your automotive testing program. Every PCB product is backed by our Total Customer Satisfaction guarantee, with expert support from sensor selection to purchase and installation.
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