Conductive Housing Slot Antenna Temperature Sensor

The patent removes the lead wires from the measurement system entirely. Instead of using lead wires that contact the conductor and risk ground faults, the invention uses a resonator whose resonance frequency directly responds to temperature changes. The resonator is coupled to the conductor through magnetic coupling or proximity, allowing temperature measurement without physical electrical contact that could cause ground faults.

The patent replaces the electrical lead wire system with a resonant oscillation system. Instead of measuring temperature through electrical signals transmitted via lead wires, the system uses mechanical vibrations of a resonator whose frequency characteristics change with temperature. This substitution eliminates the ground fault risk associated with electrical lead wires while maintaining temperature measurement capability.

The patent extracts the lead wires from the system by using a resonator that does not require electrical connection to the outside world. The resonator is contained within the housing and couples to the conductor internally, allowing temperature measurement without needing to draw any lead wires through the housing wall in the high electric field environment.

The resonator acts as an intermediary between the conductor and the external measurement system. It converts temperature information into resonance frequency changes that can be detected externally through the housing wall, eliminating the need for lead wires to pass through the high electric field region.

The patent implements a passive resonator system that does not require external power or batteries. The resonator is energized by the electromagnetic field from the conductor itself or by external excitation through the housing, and it autonomously provides temperature information through its resonance frequency. This self-powered approach eliminates battery exhaustion and associated maintenance requirements.

The patent replaces the battery-powered active oscillator with a passive resonator system. Instead of using an powered electronic oscillator that requires battery replacement, the system uses a passive resonant structure whose natural frequency responds to temperature, eliminating the need for power sources and maintenance.