发明授权
US06969943B2 Acoustic matching layer and ultrasonic transducer 有权
声匹配层和超声波换能器

Acoustic matching layer and ultrasonic transducer
摘要:
An acoustic matching layer according to the present invention includes a powder of a dry gel. The dry gel preferably has a density of 500 kg/m3 or less and an average pore diameter of 100 nm or less. By using the dry gel powder, a variation in the property of the acoustic matching layer can be reduced.
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