Capacitive Sensor and Method for Manufacturing the Same
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Accused Products
Abstract
The present disclosure relates to a capacitive sensor film (50) for mounting to a body. The film comprises a dielectric backing layer (2) having, on one side, a rear major surface (2a) facing, in use, the body and, on the other side, a front major surface (2b) bearing a front conductor (4) at least partly surrounding a sensor conductor (7) which is electrically isolated against the front conductor (4) by zones where the front conductor (4) is removed and the front major surface (2b) of the backing layer (2) or another layer beneath the front conductor (4) is exposed. A guard conductor (1) is provided on at least one of the major surfaces (2a, 2b) of the backing layer, to provide an electrical shield for the sensor conductor. The guard conductor may comprise the said front conductor (4).
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Citations
31 Claims
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1-12. -12. (canceled)
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13. A capacitive sensor film comprising a dielectric backing layer having a front major surface and a rear major surface;
- a sensor conductor and a front conductor on the front major surface, wherein the front conductor at least partly surrounds and is electrically isolated from the sensor conductor by first zones; and
a guard conductor on at least one of the front major surface and the rear major surface to provide an electrical shield for the sensor conductor. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
- a sensor conductor and a front conductor on the front major surface, wherein the front conductor at least partly surrounds and is electrically isolated from the sensor conductor by first zones; and
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29. A method of making a capacitive sensor film comprising:
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applying a front conductor to a front major surface of a dielectric backing layer, providing a sensor conductor by removing first zones of said front conductor at least partly surrounding said sensor conductor to electrically isolate the sensor conductor from said front conductor. - View Dependent Claims (30, 31)
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Specification