Cable-based sensor for detecting material level and temperature

摘要

A cable-base sensor can detect a material level and temperatures of a material stored in a silo. The cable-base sensor comprises an electronic box, a cable, a stopper, and a signal processing module. The electronic box comprises a base and a space for containing the signal processing module, and a hole is formed through a bottom of the electronic box. The base is mounted in the bottom, and a tapered hole is formed through the base. A first end of the cable extents into the tapered hole and the hole, and spreads to form a cable bud. The stopper is a tapered block and pressed into the tapered hole for enforcing the cable bud to be sandwiched between the stopper and the base. The cable bud strengthens a connection between the electronic box and the cable for preventing damages from solid materials.

主权项

1. A cable-based sensor, comprising:
an electronic box comprising
a top;a bottom;a space formed in the top;a hole formed though the bottom for communicating with the space;a base mounted in the bottom; anda tapered hole formed through the base; a cable having a first end extending to the tapered hole of the base and the hole of electronic box, and the cable comprising
a sensing channel;an insulation layer covering the sensing channel;a plurality of steel wires embedded in the insulation layer, wherein terminals of the steel wires extend out of the insulation layer and spread to form a cable bud; anda plurality of temperature sensing units mounted in and along the sensing channel; a stopper being a tapered block and pressed into the tapered hole of the base for enforcing the cable bud to be sandwiched between the stopper and the base; a signal processing module mounted in the space of the electronic box and electronically connected with the temperature sensing units and the steel wires.