Dielectric Bead Transmission Probe for Low-Attenuation Grain Level Sensing

The patent introduces insulating dielectric beads as intermediary elements along the probe line. These beads act as mediators that reduce the direct interaction between the electromagnetic field and the lossy grain material, thereby reducing signal attenuation without requiring a complete enclosing structure. The beads are spaced at specific intervals to optimize the balance between attenuation reduction and device simplicity.

Instead of providing continuous insulation along the entire probe line, the patent applies insulating dielectric beads at specific local positions. This localized approach provides sufficient insulation where needed to reduce attenuation while avoiding the complexity of a complete enclosing structure throughout the entire probe length.

The patent divides the continuous dielectric enclosing structure into discrete segmented beads spaced along the probe line. Each bead provides localized insulation while the gaps between beads maintain probe flexibility. This segmentation allows the probe to be bent and flexed during installation while still providing sufficient attenuation reduction at critical measurement points.

The patent uses individual dielectric beads that can be thought of as flexible insulating elements compared to a rigid continuous enclosure. The spaced arrangement of these bead-like structures allows the probe to maintain flexibility for easy installation while providing the necessary electromagnetic insulation to reduce signal attenuation in lossy materials.

The patent uses multiple thinner dielectric beads spaced along the probe line rather than a single thick continuous insulator. The cumulative effect of multiple spaced beads provides sufficient attenuation reduction while each individual bead remains thin enough to maintain probe flexibility and reduce stiffness.

The patent optimizes the parameters of the dielectric beads including their thickness, spacing distance, and dielectric constant to achieve the desired balance between attenuation reduction and flexibility. By carefully selecting these parameters, the probe achieves sufficient signal transmission through lossy materials while maintaining ease of installation.

The patent integrates reflectors into the existing dielectric bead structure, making the beads serve multiple functions: providing electromagnetic insulation and acting as reflectors for density measurement. This multi-functionality approach improves measurement capability without adding separate dedicated reflector components, thereby minimizing the increase in device complexity.

The patent combines the insulation function and reflection function into a single integrated bead structure. The dielectric beads are designed to both reduce signal attenuation and provide reflection interfaces for density measurement, merging multiple functions into one component to avoid increasing overall device complexity.