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    • 1. 发明申请
    • PRESSURE SENSOR
    • 压力传感器
    • US20130152693A1
    • 2013-06-20
    • US13818279
    • 2011-11-09
    • Koumei FujitaKenji FujiiAtsuo Takekawa
    • Koumei FujitaKenji FujiiAtsuo Takekawa
    • G01L11/04
    • G01L11/04G01L9/0025G01L23/10
    • A pressure sensor includes a case, a vibrator, a detector, and a processor. The case includes a tubular section and a flat section. The tubular section has a hollow having an opening and is configured to be filled with a target fluid. The flat section closes the hollow. The flat section has a first surface facing the hollow, and a second surface opposite to the first surface. The vibrator is disposed on the second surface of the flat section of the case. The detector outputs a signal according to a vibration of the vibrator. The processor is operable to detect a frequency of the vibration of the vibrator based on the signal output from the detector, and to detect a pressure of the target fluid based on the detected frequency of the vibrator. This pressure sensor has a high sensitivity and excellent characteristics.
    • 压力传感器包括壳体,振动器,检测器和处理器。 壳体包括管状部分和平坦部分。 管状部分具有一个具有开口的中空部分,并被构造成填充有目标流体。 扁平部分封闭空心。 平坦部分具有面向中空部的第一表面和与第一表面相对的第二表面。 振动器设置在壳体的平坦部分的第二表面上。 检测器根据振动器的振动输出信号。 处理器可操作以基于从检测器输出的信号来检测振动器的振动频率,并且基于检测到的振动器的频率来检测目标流体的压力。 该压力传感器具有高灵敏度和优异的特性。