公开(公告)号：US07716991B2

公开(公告)日：2010-05-18

申请号：US12192594

申请日：2008-08-15

申请人： Bongyoung Ahn ,  Seung Hyun Cho ,  Seung Soo Hong ,  Yong Hyeon Shin ,  Kwang Hwa Chung

发明人： Bongyoung Ahn ,  Seung Hyun Cho ,  Seung Soo Hong ,  Yong Hyeon Shin ,  Kwang Hwa Chung

IPC分类号： G01L11/00

CPC分类号： G01L11/06

摘要： 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 unit 20 disposed inside the vessel 10 and generating predetermined ultrasonic waves, an ultrasound receiving unit 30 disposed inside the vessel 10 and placed on the same axis line as that of the ultrasound exciting unit 20, a control unit 70 for controlling a frequency and a waveform of the excitation signal transmitted into the ultrasound exciting unit 20, and a pressure measuring unit 80 for measuring an internal pressure of the vessel 10 based on an ultrasonic signal received by the ultrasound receiving unit 30 and the excitation signal transmitted into the ultrasound exciting unit 20.

摘要翻译： 本发明涉及一种用于根据内部压力的声阻抗变化来改变超声波的发射效率的原理来测量预定容器内的压力的装置。 该装置包括设置在容器10内部并产生预定超声波的超声波激励单元20，设置在容器10内部并且放置在与超声波激励单元20相同的轴线上的超声波接收单元30，用于 控制发送到超声波激励单元20的激励信号的频率和波形;以及压力测量单元80，用于基于由超声波接收单元30接收的超声波信号和发送的激励信号来测量容器10的内部压力 进入超声波激发单元20。

公开(公告)号：US07735373B2

公开(公告)日：2010-06-15

申请号：US12190901

申请日：2008-08-13

申请人： Seung Hyun Cho ,  Bongyoung Ahn ,  Seung Soo Hong ,  Yong Hyeon Shin

发明人： Seung Hyun Cho ,  Bongyoung Ahn ,  Seung Soo Hong ,  Yong Hyeon Shin

IPC分类号： G01L9/10

CPC分类号： H04R15/00 ,  H04R29/00

摘要： 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.

摘要翻译： 本发明涉及使用磁致伸缩声学换能器来测量容器内的压力的装置。 该装置包括磁致伸缩声学换能器，其包括缠绕在设置在容器的外部位置上的第一磁轭上的励磁线圈单元，缠绕在第一磁化轭上的接收线圈单元和设置在第一磁轭上的内部位置的振动单元 装有第一磁轭的容器; 控制单元，用于向励磁线圈单元提供预定的激励电流信号; 以及压力测量单元，用于基于由接收线圈单元接收的超声波信号和激励电流信号来测量容器的内部压力到激励线圈单元中。