Korea Research Institute of Standards and Science

Bongyoung Ahn

Seung Hyun Cho

Yong Hyeon Shin

Seung Soo Hong

Kwang Hwa Chung

The present invention relates to an apparatus for measuring pressure inside a vessel using a magnetostrictive acoustic transducer. The apparatus includes a magnetostrictive acoustic transducer, including an exciting coil unit wound on a first magnetization yoke disposed on an outer position of a vessel, a receiving coil unit wound on the first magnetization yoke, and a vibration unit disposed on an inner position of the vessel in which the first magnetization yoke is installed; a control unit for supplying a predetermined excitation current signal to the exciting coil unit; and a pressure measuring unit for measuring an internal pressure of the vessel based on an ultrasonic wave signal received by the receiving coil unit and an excitation current signal into the exciting coil unit.

Apparatus for measuring pressure in a vessel using magnetostrictive acoustic transducer

The present invention relates to an apparatus for measuring pressure inside a predetermined vessel based on the principle that the transmitting efficiency of ultrasonic waves is changed by acoustic impedance variation according to an internal pressure. The apparatus includes an ultrasound exciting unitdisposed inside the vesseland generating predetermined ultrasonic waves, an ultrasound receiving unitdisposed inside the vesseland placed on the same axis line as that of the ultrasound exciting unit, a control unitfor controlling a frequency and a waveform of the excitation signal transmitted into the ultrasound exciting unit, and a pressure measuring unitfor measuring an internal pressure of the vesselbased on an ultrasonic signal received by the ultrasound receiving unitand the excitation signal transmitted into the ultrasound exciting unit

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Daejeon, South Korea

Bongyoung Ahn