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一種超音波傳感裝置，包括一由二蓋體部界定出的一容置空間及一位於該容置空間中央的定位空間及一貫穿二該蓋體部的第一通道的支撐主體以及一具有一設於該定位空間內的本體部、至少一自該本體部延伸而設於該容置空間的感測通道部、至少一設於該感測通道部的一端面的壓電單元及一貫穿該本體部的第二通道的超音波傳感件。其中，該定位空間的內徑大於該容置空間的內徑，且感測通道部的外徑小於該容置空間的內徑，使該感測通道部與該容置空間之間形成有一間隙，且該壓電單元於該容置空間外部而能與外界接觸。
An ultrasonic sensing device includes a support body and an ultrasonic sensor. The support body includes an accommodating space, and a positioning space at a center of the accommodating space. The ultrasonic sensor includes a body portion in the positioning space, at least one sensing channel portion extending from the body portion and in the accommodating space, at least one piezoelectric unit at one end surface of the sensing channel portion, and a second channel passing through the body portion. An inner diameter of the positioning space is greater than an inner diameter of the accommodating space, and an outer diameter of the sensing channel portion is smaller than the inner diameter of the accommodating space. Thus, a gap is formed between the sensing channel portion and the accommodating space, and the piezoelectric unit is located outside the accommodating space to come into contact with an exterior.

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