Windshield Wiper Pressure Distribution
Measure a wiper blade's linear force as it is applied to the windshield.
Windshield Wiper Pressure & Force Measurement
Designing a windshield wiper system that effectively cleans a windshield is not an easy task given the constraints. The combination of different blade lengths, durometers, low and uneven pressures, and varying windshield contours combine to make this a complicated material and dynamics problem. Knowing the force distribution between the windshield and the blade at various positions along blade length provides key insight into how to improve performance.
Tekscan developed a 0.1 mm high, flexible polyester sensor strip containing 100 individual force sensors arrayed along its length. The accompanying electronics, calibration fixtures and software are sensitive, flexible and portable enough to measure the windshield to wiper blade interface profile under various conditions.
Output displayed graphically -Force vs. Distance across sensor rows
Wiper Blade Pressure & Force Measurement Applications
- Measure blade performance
- Identify uneven pressures
- Before and after adjustment comparison
- Reliability testing
- Design verification testing
Benefits of Pressure and Force Measurement
- Improve design
- Eliminate need to build costly fixtures formerly user to model windscreens
- Competitive benchmark
Typical Pressure Sensor Models used for Wiper Blade Pressure & Force Measurement
- Sensor Model 9901
Sensing Area Total Width Height Sensels Sensel Density 24.00 in. 0.38 in. 96 4.0 in.2 609.6 mm 9.7 mm 96 0.6 cm2 - Sensor Model 9920
Sensing Area Total Width Height Sensels Sensel Density 32.00 in. 0.77 in. 128 4.0 in.2 812.8 mm 19.6 mm 128 0.6 cm2
View all of Tekscan’s Pressure Sensors
