222 nm excimer bulb for uv light disinfection: energy harvesting dual purpose monitoring temperature as a phm sensor

A system for monitoring an excimer bulb, the system comprising:

• a thermoelectric energy harvester configured to be located adjacent to the excimer bulb and to convert heat from the excimer bulb into electrical energy having a voltage;
• and
• a controller in electrical communication with the thermoelectric energy harvester and configured to:
• calculate a current temperature of the excimer bulb based on the voltage of the electrical energy converted by the thermoelectric energy harvester, and
• calculate a remaining useful life of the excimer bulb based on at least one of the voltage of the electrical energy converted by the thermoelectric energy harvester or the current temperature of the excimer bulb.