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A Load Cell Utilizing Novel Cermet Construction for Automotive Applications
Keywords: strain gauge, thick film, automotive
The automobile uses an ever-increasing number of sensors in its construction. Many of these sensors are load cells used to detect the deformation of a material caused by a load and convert it to an electric signal. One way to make these sensors is with piezoresistive thick film materials. This talk will go into the basics of what makes a thick film sensor work, what its characteristics are that make it a good choice for automotive products, and what it costs compared to other technologies. The thick film sensor’s advantages over thin film, polymer, and semiconductor technologies will be discussed. Finally the novel cermet compression strain gauge approach will be presented showing its characteristics such as signal output under load, low Temperature Coefficient of Resistance, small size, essentially no movement, no hysteresis, and excellent overload capability.
Terry Bloom, Technical Staff
CTS Automotive Products
Elkhart, IN

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