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    • 1. 发明专利
    • Liquid level detection apparatus for tank
    • 液体液位检测装置
    • JP2012220421A
    • 2012-11-12
    • JP2011088491
    • 2011-04-12
    • Fts:Kk株式会社Fts
    • FUJITA HIDEAKI
    • G01F23/68G01F23/22
    • PROBLEM TO BE SOLVED: To provide a liquid level detection apparatus which is simple and accurate and also improves durability.SOLUTION: A liquid level detection apparatus 10 comprises a float 11 which is elongated in a length direction and a float case 15. One end of the float 11 forms a protruded float distal end portion 12 and is abutted to one distal end portion of the float case 15. Another distal end of the float 11 forms a float bottom portion 13 to which a spring member 14 is abutted, and the float distal end portion 12 is energized in a direction of the one distal end of the float case 15 so as to be abutted to the one distal end of the float case 15 at all the time by the spring member 14. In the distal end portion of the float case 15 to which the float distal end portion 12 is abutted, a pressure-sensible member 16 is mounted which measures pressure of the float distal end portion 12, and data from the pressure-sensible member 16 are measured to measure the position of a liquid level.
    • 要解决的问题:提供一种简单准确并且还提高耐久性的液位检测装置。 解决方案:液面检测装置10包括在长度方向上伸长的浮子11和浮子壳15.浮子11的一端形成突出的浮子远端部分12,并且与一个远端部分 浮子11的另一远端形成浮子底部13,弹簧构件14抵靠在该底部13上,并且浮子远端部12在浮子壳体15的一个远端的方向上被通电 以便通过弹簧部件14一直与浮子壳体15的一个远端抵接。在浮子前端部分12所抵接的浮子壳体15的远端部分中,压力敏感的 安装构件16,其测量浮子远端部分12的压力,并且测量来自压敏构件16的数据以测量液位的位置。 版权所有(C)2013,JPO&INPIT
    • 2. 发明专利
    • Location method and location program
    • 位置方法和位置方案
    • JP2005207937A
    • 2005-08-04
    • JP2004015973
    • 2004-01-23
    • Asia Air Survey Co Ltdアジア航測株式会社
    • KOBAYASHI NORIYUKIKANAME TATSUYAFUJITA ICHIRO
    • G01C15/00G01C11/00G01C13/00G01F23/68G01S19/17G01S5/14
    • Y02A90/32
    • PROBLEM TO BE SOLVED: To enhance the accuracy of a conversion to a three-dimensional absolute coordinate from an camera image of a water surface of a river in a flow velocity distribution/flow rate measuring system of the river. SOLUTION: A boat on which a GPS sensor 100 is mounted is cruised in the river of a measurement object, and the three-dimensional absolute coordinate of a sensor position is continuously measured. The cruise situation of the boat is photographed by a video camera set at a predetermined point, and the water level of the river is measured by a water level sensor. The photograph coordinate data of the GPS sensor on the camera image at each of measuring points of suitable number is calculated. The three-dimensional absolute coordinate data of the GPS sensor at each of measuring points of suitable number, the photograph coordinate data of the GPS sensor on the camera image, and the water level data are mutually associated. A coordinate conversion formula (Σ) calculating the three-dimensional absolute coordinate (X, Y, Z) of the GPS sensor is calculated by using these data. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提高河流流量分布/流量测量系统中河流水面摄像机图像向三维绝对坐标转换的精度。 解决方案:在测量对象的河流中巡航安装GPS传感器100的船,连续地测量传感器位置的三维绝对坐标。 通过设置在预定点的摄像机拍摄船的巡航情况,并且通过水位传感器测量河的水位。 计算适当数量的各测量点处的摄像机图像上的GPS传感器的照片坐标数据。 GPS传感器在适当数量的测量点,相机图像上的GPS传感器的照片坐标数据和水位数据之间的三维绝对坐标数据相互关联。 使用这些数据来计算GPS传感器的三维绝对坐标(X,Y,Z)的坐标转换公式(Σ)。 版权所有(C)2005,JPO&NCIPI
    • 6. 发明专利
    • LEVEL SENSOR
    • JPH07288073A
    • 1995-10-31
    • JP10142893
    • 1993-04-27
    • FLYGT AB ITT
    • BENGUTO SOODERUGAARUDO
    • G01F23/68G01F23/36G01F23/44H01H35/18
    • PURPOSE: To perform errorless function in any environment without containing material dangerous to environment by operating a microswitch into a connect/ cutoff position by a balance weight rotatably movable between two different terminal positions. CONSTITUTION: When a hollow body 1 is in the air, the body 1 takes a vertical position. The center of gravity 10 of a balance weight 9 is therefore positioned on the left side of a shaft 8, and the weight 9 is going to rotate counterclockwise around the shaft 8. This rotation is stopped when one face comes in contact with the left edge of a disc 5. Immediately before the weight 9 reaches this position, the face 13 actuates a microswitch 15 fitted to the disc 5 so as to connect or cut off an electronic circuit. When the water level rises, the body 1 starts inclining and reaches a horizontal position before long. At this time, the weight 9 shifts the center of gravity 10 to the lower right side of the shaft 8 and rotates clockwise around the shaft 8. During this movement, the surface 13 of the weight 9 loses contact with the disc 5 and an elastic yoke 16, and the switch 15 is operated into the other position. The weight 9 is relatively heavy, but the minimum value obtaining acceptable safety is 30% of the whole weight.