0
Still curious? Ask our experts.
Chat with our AI personalities
Coach
Rafa
BeauAdd your answer:
Earn +20 pts
What does pir in lighting stand for?
PIR = passive infared They detect motion and then activate a switch to turn things on and off
Why LDR used in PIR sensor?
industrial automaton
What is pir?
A PIR normally refers to a passive infra-red detector. These are the detectors typically used in security systems to detect movement of people. They are normally found with a small translucent window in the front of the detector. The detector works by measuring the infra-red radiation (heat) from the field of view in front of the translucent lens. When the radiation levels change or a heat source moves, the output of the detector is triggered. Normal security use will detect a person moving in the field of view but they can be far more sensitive and detect movements of far smaller animals.
Why does the soldering stand have a wet sponge in it?
The soldering stand has a wet sponge on it so you can wipe off and clean the soldering iron!
What does Tesla stand for?
Stand for Tev-Energy superconducting linear accelerator It is the basic unit for measuring magentic power of MRI
