Signal stabilization in a dielectric sensor assembly

摘要

A non-resistive contact sensor assembly includes an electric field sensor device, including a dielectric component for receiving an electrical signal from an object of interest and a signal processing component for processing the electrical signal, a voltage regulator for controlling voltage to the dielectric component and the signal processing component, and a common ground reference for the dielectric component and the signal processing component.

主权项

1. A non-resistive contact sensor assembly, comprising:
(a) an electric field sensor device, including
(i) a dielectric component for receiving an electrical signal from an object of interest, the dielectric component including,
(A) an active component comprising an amplifier, and(B) a neutral component comprising a dielectric membrane that interacts with the electric field to pick up the electrical signal from the object of interest, and(ii) a signal processing component for processing the electrical signal, the signal processing component comprising,
(A) an analog filter for tuning the electrical signal received from the object of interest, and(B) an A/D converter for converting the electrical signal, following tuning by the analog filter, to a digitized signal; (b) a voltage regulator for controlling voltage to the dielectric component and the signal processing component; and (c) a common ground reference for the dielectric component and the signal processing component; (d) wherein circuitry comprising ground fill shields the signal processing component from the dielectric component and serves as an internal partition providing an electrical field barrier against the dielectric component and amplification thereat.