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Mechanically decoupled land Sensor Unit device from cable network

IP.com Disclosure Number: IPCOM000245617D
Publication Date: 2016-Mar-22
Document File: 6 page(s) / 286K

Publishing Venue

The IP.com Prior Art Database

Abstract

The invention decouples mechanically the network cables from the sensor unit device to reduce noise propagation from the cables. The invention is not only to decouple the sensor unit from the vibrations in the cable (by wind or other mechanisms), decoupling it mechanically, but also protects the sensor unit from wind and turbulent air flow and sand storms by a protecting cap that has aerodynamic shape. The sensor unit can be connected to the outer disc by strings made of a woven material, or for example Kevlar, that is able to support tension. However any other material can be used for such support and the connection can also be a woven or plastic sheet rather than strings. The strings or the sheets have some slack and are not under tension during operation. The strings are used to transfer any applied tensile loads to the sensor unit, instead of the cable, if the ring is pulled when removing the unit from the ground. But the strings or the sheet are not absolutely necessary and can be put in place to increase robustness. In one claim no supporting strings or sheets are used.

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Title: Mechanically decoupled land Sensor Unit device from cable network

SUMMARY

This invention addresses the reduction of noise transfer from the land network cables to the Sensor device that contains at least one MEMS unit (can be 3 or less components each) or a geophone. It also protects the sensor unit from sand storm and rain drops. The device can also have at least two MEMS units separated by a distance inside the same housing.

DESCRIPTION

The invention decouples mechanically the network cables from the sensor unit device to reduce noise propagation from the cables.

The invention is not only to decouple the sensor unit from the vibrations in the cable (by wind or other mechanisms), decoupling it mechanically, but also protects the sensor unit from wind and turbulent air flow and sand storms by a protecting cap that has aerodynamic shape. The sensor unit can be connected to the outer disc by strings made of a woven material, or for example Kevlar, that is able to support tension. However any other material can be used for such support and the connection can also be a woven or plastic sheet rather than strings. The strings or the sheets have some slack and are not under tension during operation. The strings are used to transfer any applied tensile loads to the sensor unit, instead of the cable, if the ring is pulled when removing the unit from the ground. But the strings or the sheet are not absolutely necessary and can be put in place to increase robustness. In one claim no supporting strings or sheets are used.

Figure 1 and Figure 2 each illustrate a sensor unit decoupled from the network cables. The cables are fastened to an outer ring (or any other shape that supports the concepts) and between the ring and the sensor unit device the network cable is slack and not under tension. Figure 3 and Figure 4 illustrate how a cap that is mounted on the top can be mounted on the outer ring. The cap protects the sensor unit from wind and rain drops. In order to avoid turbulent airflow the cap in the figure has an aerodynamic shape. The cap can be made of transparent material in order to help see the sensor unit device if necessary without removing the cap. The cap can be mounted after the planting if necessary...