Sensor film lends quality assurance a hand

May 5, 2005
Process engineers at leading automotive supplier Valeo Inc. were having a hard time checking the durability and performance of the rectangular gaskets the company makes for radiators.

Process engineers at leading automotive supplier Valeo Inc. were having a hard time checking the durability and performance of the rectangular gaskets the company makes for radiators. Sensors they used kept giving inaccurate readings. As an experiment, they tried Pressurex sensor film from Sensor Products LLC for stress-distribution analysis.

The film consists of thin, clear Mylar sheets treated to turn color in response to pressing. A color-coded chart supplied with the film is used to interpret the pressure related to each color. The film can be inserted between mating objects, such as a gasket and radiator, or placed under an object, such as a tire tread, to generate a pressure-distribution image. The film detects pressures from 2 to 43,2000 psi (0.14 to 3,037 kg/cm2), and can be customized to work despite the presence of oil, water or other liquids.

The quality assurance staff at Valeo cut Pressurex into strips to fit between the gasket and radiator and got results in seconds. It let them spot areas with inconsistent pressure and correct them. The sensor film is now used in several Valeo plants during design, development, and production of auto parts.

Sponsored Recommendations

How BASF turns data into savings

May 7, 2024
BASF continuously monitors the health of 63 substation assets — with Schneider’s Service Bureau and EcoStruxure™ Asset Advisor. ►Learn More: https://www.schn...

Agile design thinking: A key to operation-level digital transformation acceleration

May 7, 2024
Digital transformation, aided by agile design thinking, can reduce obstacles to change. Learn about 3 steps that can guide success.

Can new digital medium voltage circuit breakers help facilities reduce their carbon footprint?

May 7, 2024
Find out how facility managers can easily monitor energy usage to create a sustainable, decarbonized environment using digital MV circuit breakers.

The Digital Thread: End-to-End Data-Driven Manufacturing

May 1, 2024
Creating a Digital Thread by harnessing end-to-end manufacturing data is providing unprecedented opportunities to create efficiencies in the world of manufacturing.

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!