Device for judging types of liquid in container and control method therefor

A liquid type and container technology, applied in the direction of material capacitance, etc., can solve problems such as difficult detection, and achieve the effect of reducing dependence

Active Publication Date: 2006-11-29
TOKYO GAS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there is no problem with dangerous goods that can be detected by currently used baggage inspection equipment, dangerous goods that ca

Method used

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  • Device for judging types of liquid in container and control method therefor
  • Device for judging types of liquid in container and control method therefor
  • Device for judging types of liquid in container and control method therefor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] (Example 1)

[0050] figure 1is a block diagram showing an example of the configuration of an apparatus for judging the type of liquid in a container, which is an embodiment of the present invention. The apparatus for judging the type of liquid in the container of this embodiment has a capacitor 1, a container support 3 supporting the container 2, an oscillation circuit 4, a control section 5, LED display devices 6a, 6b, 6c, and container sensors 7a and 7b. The oscillation circuit 4 includes a capacitor 1, a capacitor 8, a coil 9, and NOT circuits 10a and 10b, and the control section 5 includes a CPU (Central Processing Unit) 11, a pulse counter 12, a container detection circuit 13, a timer 14, a RAM (Random Access) memory) 15, a ROM (Read Only Memory) 16, and a display control circuit 17.

[0051] Capacitor 1 is a plate capacitor having two plate electrodes 1a and 1b placed in parallel. The material of the flat electrode is not particularly limited as long as it can...

Example Embodiment

[0077] (Example 2)

[0078] Figure 12 is a block diagram showing an example of the configuration of an apparatus for judging the type of liquid in a container, which is another embodiment of the present invention. Except for having the third electrode 18, the apparatus for judging the liquid type of this Embodiment 2 is the same as that of the above-mentioned Embodiment 1, so redundant description is omitted. The method of judging the liquid type using the apparatus of this embodiment 2 is the same as the method of the above-mentioned embodiment 1.

[0079] As described above, the device of Example 2 has the third electrode 18 . like Figure 13 As shown, the third electrode 18 is arranged in contact with the bottom of the container 2 . The third electrode 18 is also connected to one plate electrode 1b of the capacitor 1, and its potential is kept the same as that of the plate electrode 1b. The potential of the plate electrode 1b is usually the ground potential. Although...

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PUM

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Abstract

A device for judging the types of liquid in a container applicable to various shapes of a container and applicable even when a residual amount in a container differs, and a judging method. A device for judging the types of liquid in a container comprising a flat-plate capacitor (1) having two flat-plate electrodes (1a, 1b) facing each other, a container supprt member (3) for supporting a non-conductive container (2), able to store liquid therein, in regions other than a region held between the electrodes (1a, 1b), an oscillation circuit (4) including the capacitor (1), and a control unit (5) for detecting an oscillation frequency, the the container support member (3) adjusting the distance from the electrode (1a) to the container (2) according to the size of the container (2). A third electrode (18) at the same potential as the electrode (1b) is disposed in contact with the bottom of the container (2).

Description

technical field [0001] The present invention relates to a device for judging the type of liquid in a container and a control method thereof, and is particularly effective in the field of judging whether the liquid in the container is a harmless liquid whose main component is water. Background technique [0002] In airplanes, trains, buses and other forms of passenger transport, there is an obligation to ensure the safe transport of passengers. Especially for aircraft, because its accident can bring huge loss, therefore must impose high vigilance on safety. Therefore, X-ray imaging devices are used to carry out luggage inspections, metal detectors or physical examinations to carry out physical examinations, and interrogation when necessary, so as to identify malicious passengers and prohibit such passengers from boarding the plane. However, it is difficult to strictly check and inquire all passengers in consideration of the majority of passengers and the convenience of passe...

Claims

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Application Information

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IPC IPC(8): G01N27/22
Inventor 安部健篠泽康彦町田智英山田浩一郎
Owner TOKYO GAS CO LTD
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