Ultrasonic transducer energy storage method

What is an ultrasound energy transducer?

An ultrasound energy transducer generates ultrasound with a wide range of frequency and power for various applications. The core element of an ultrasound transducer is one or more piezoelectric crystals that convert electrical energy into mechanical vibrations.

How do ultrasound transducers function?

Ultrasound transducers work by delivering ultrasound waves remotely through an ultrasound transducer probe toward receivers that could be piezoelectric or triboelectric generators. The vibration energy is then changed to electrical energy/signal via US-ETs for functionalizing.

How is ultrasonic data transmitted?

Raw data packets of ultrasonic signals are transferred through transmission control protocol/internet protocol (TCP/IP). The raw data are then analyzed in both time and frequency domains to predict the health status of battery.

How does ultrasonic guided wave signal extraction work?

To simulate the pulse signal excited by the ultrasonic transducer, a fixed displacement excitation is applied on the upper surface of the battery. The ultrasonic guided wave signal extraction region is situated at the distal end of the upper surface of the battery.

What are air-coupled ultrasonic transducers?

Air-coupled ultrasonic transducers are subjected to low energy transfer efficiency and susceptibility to environmental airflow and temperature interference. Electromagnetic acoustic technology is also considered to be a contactless ultrasonic testing method [, , ].

Can a contactless electromagnetic ultrasonic transducer be used to test lithium-ion batteries?

However, currently used ultrasonic transducers must be affixed to the tested battery very tightly through coupling agents, thereby lowering the test efficiency and convenience. In this paper, a contactless electromagnetic ultrasonic testing technology is proposed for characterizing the states of lithium-ion batteries.