Capacitive load cell with multi-layer dielectric for extended range
A capacitive load cell (12) includes upper and lower capacitor plates (28, 30) and an intermediate dielectric (22) comprising two or more layers of compressible material (22a, 22b, 22c) with diverse compressibility characteristics. The most easily compressed dielectric layer (22a) provides sensitivi...
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| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A capacitive load cell (12) includes upper and lower capacitor plates (28, 30) and an intermediate dielectric (22) comprising two or more layers of compressible material (22a, 22b, 22c) with diverse compressibility characteristics. The most easily compressed dielectric layer (22a) provides sensitivity to low occupant weight, while the less easily compressed dielectric layer(s) (22b, 22c) provide sensitivity to medium and high occupant weight. |
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