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Patent Searching and Data


Title:
HEIGHT MEASURING APPARATUS
Document Type and Number:
Japanese Patent JP2001215118
Kind Code:
A
Abstract:

To enable measurement of a height between two points requiring no special skill free from trouble regardless of the absence of clear perspective and the existence of any obstacle.

A water tank 2 is installed at a measuring point P1 and a manometer 3 at a reference point P2. One end of a pipeline 4 is linked to an outlet 2-2 of the bottom surface of the water tank 2 and the other end of the pipeline 4 is linked to a pressure inlet 3-1 of the manometer 3. Water is poured into the water tank 2. It is so arranged (1) that water from the water tank 2 is guided to a pressure receiving part of the thermometer 3, (2) that no bubble exists in the water in the water tank 2 and in the pipeline 4 and (3) that water fills the water tank 2 up to the height of a reference line 2-1. A height display devices 5 determines a height H between two of the measuring point P1 and the reference point P2 from a measured pressure PV of the manometer 3 to be displayed in a digital value on a height display part 5-1.


Inventors:
Date, Yasukazu
Asaka, Kenichi
Ito, Kazunori
Sugiyama, Koichi
Application Number:
JP2000000023742
Publication Date:
August 10, 2001
Filing Date:
February 01, 2000
Export Citation:
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Assignee:
EAST JAPAN RAILWAY CO
YAMATAKE BUILDING SYSTEMS CO LTD
International Classes:
G01C5/04; G01L13/00; G01C5/00; G01L13/00; (IPC1-7): G01C5/04; G01L13/00