Title:
【発明の名称】地下貯蔵タンク等の容積漏れ検出システム
Document Type and Number:
Japanese Patent JPH03503674
Kind Code:
A
Abstract:
Method and apparatus for detecting leaks in underground tanks (30) containing a liquid (31). The pressure and temperature of the liquid are measured over a predetermined time interval, while simultaneously measuring the liquid level in the tank and the temperature of the liquid (31) therein. From each measuring step the leak rate of the liquid (31) from the tank (30) is calculated and the two calculated leak rates are compared with each other. The temperature at a series of different depths in the tank is measured. Other measurements are made and fed to a suitable computer (27) which computes the leakage rate.
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Inventors:
Mastand Leah John Earl
Application Number:
JP50030888A
Publication Date:
August 15, 1991
Filing Date:
November 18, 1987
Export Citation:
Assignee:
ND Technology Incorporated
International Classes:
G01F23/00; G01F23/18; G01F23/14; G01F23/60; G01M3/32; (IPC1-7): G01F23/14
Domestic Patent References:
| JPS5819309A | 1983-02-04 | |||
| JPS6035008A | 1985-02-22 |
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)