Ultrasound transducer | 合法醫療器材資訊網

Anultrasoundtransducerconvertselectricalenergyintomechanical(sound)energyandbackagain,basedonthepiezoelectriceffect.Itisthehand-heldpartof ...

An ultrasound transducer converts electrical energy into mechanical (sound) energy and back again, based on the piezoelectric effect. It is the hand-held part of the ultrasound machine that is responsible for the production and detection of ultrasound waves.

It consists of five main components:

crystal/ceramic element with piezoelectric properties

usually lead zirconate titanate (PbZT) 3

may consist of a single element or be a broadband transducer with multiple elements

piezoelectric polyvinylidene fluoride (PVDF) is useful in those high frequency, high bandwidth transducer that needs focusing to a certain region 4. PVDF also has low acoustic impedance similar to water, thus ...