How an automotive system was able to accurately detect touch input and provide haptic feedback confirmation
Automotive navigation interfaces have grown increasingly complex. Unlike traditional physical buttons, touch screens provide no tactile confirmation, which causes drivers to visually verify inputs on the vehicle’s touchscreen. Automakers need to test the haptic feedback to confirm user touch input through the vehicle’s onboard systems is working properly.
How our vehicle interface force testing solutions captured accurate touch input forces and validated automotive haptic feedback systems.
Interface’s SMTM Micro S-Type Load Cells were installed behind the bezel mount points of the vehicle’s touchscreen interface, with Load Cell Load Buttons passing through each load cell to secure both the load cell and the screen assembly. When the user tapped the screen, the SMTM measured the contact force, and the analog output was captured through the compact, high-speed 9330 indicator. The measurements can be captured using the 9330 Battery Powered High Speed Data Logging Indicator through an SD card, or another laptop directly.
With our force measurement solution, the automotive system could accurately detect user touch input and provide haptic feedback confirmation.
A clear inventory of components helps engineers source the right sensors and instrumentation for vehicle touchscreen force testing:
Q1: What is a search and rescue robot?
A: A search and rescue robot is a robotic system designed to enter hazardous or unpredictable environments where human responders might be at risk — such as disaster sites — to assist in locating and helping victims. They are built to navigate debris, rough terrain, and challenging conditions while performing tasks safely.
Q2: What does force measurement mean in robotics testing?
A: Force measurement refers to using sensors — like load cells and torque transducers — to collect precise data on forces and torques during robot operation. This helps engineers evaluate performance, refine stability, and ensure reliable control under real-world conditions.
Q3: What is wheel torque and why is it important for robots?
A: Wheel torque measures the rotational force produced by a robot’s wheel motor. It’s crucial because it tells engineers how well the robot can move across uneven surfaces and react to load changes, which affects traction and speed in rescue settings.
Q4: What are load cells and where are they used in robots?
A: Load cells are sensors that convert mechanical force into electrical signals. In search and rescue robots, they are often placed in grippers to measure how much pressure is applied when grabbing or manipulating objects, ensuring safe interaction without damage.
Q5: What is the purpose of torque transducers?
A: Torque transducers measure twisting force (torque) in rotating components, such as wheels or actuators. This data helps engineers verify that motors and drive systems are delivering the required power for effective movement and load handling.
Q6: How do wireless telemetry systems support robot testing?
A: Wireless telemetry systems send measurement data from sensors like load cells and torque transducers to displays or PCs without cables, enabling engineers to monitor performance in real time during dynamic testing conditions.
Interface Force Measurements Ltd is a UK-based engineering company specialising in force, torque, and pressure measurement systems.
As the master distributor and technical centre for Interface load cells across the UK, Ireland, the Middle East, and North Africa, we don’t just supply components — we design, integrate, and calibrate complete measurement solutions.
With our UK calibration laboratory, we provide in-house testing, verification, and support for all our products and systems, giving customers manufacturer-level quality with local service and expertise.
We also represent other leading sensor brands — DDM Sensor Solutions, AMTI Force and Motion, GP:50, and XSENSOR Intelligent Dynamic Sensing — chosen for their shared commitment to quality, reliability, and performance.