Method for measuring level of liquid in container, involves detecting liquid level in container based on response to signal attenuation of response signal sent by radio frequency identification (RFID) transponder to reading unit

摘要

The method involves emitting a request signal by a reading unit (5) to a passive radio frequency identification (RFID) transponder (7) arranged in a region of liquid (2) in a container (1). The response signal for evaluating the liquid level is sent by the passive RFID transponder to the reading unit. The liquid level is detected in response to the signal attenuation of the response signal. An independent claim is included for a device for measuring level of liquid in container.