RFID(射频我dentification) tagsare small electronic devices that use radio waves to transmit data. An interrogator, also known as a reader, is a device used to communicate with RFID tags. It sends out radio waves that get picked up by the tags, which then respond with their unique identification numbers.

An interrogated RFID tag is simply a tag that has been read by an interrogator. When the interrogator sends out its radio waves, any nearby RFID tags will pick up the signal and respond with their information. The interrogator then captures this information and can use it for a variety of purposes, such as tracking inventory, monitoring the movement of objects, or managing access to a secure area.

Interrogated RFID tags can be passive or active. Passive tags do not have their own power source and rely on the energy from the interrogator's radio waves to function. Active tags, on the other hand, have their own power source and can transmit data over longer distances.

Interrogated RFID tags are becoming increasingly common in a variety of industries and applications. They offer benefits such as real-time tracking, improved inventory management, and enhanced security. As technology continues to advance, it is likely that we will see more widespread adoption of RFID tags and interrogators.