DE3247975A1 Dec 24, 1982 Jun 28, 1984 Balzers Hochvakuum Method and device for detecting leaks in wallsDE3247975A1 * Dec 24, 1982 Jun 28, 1984 Balzers Hochvakuum Method and device for detecting leaks in wallsDE3247975A1 1982年12月24日 1984年6月28日 Balzers Hochvakuum Method and device ...
The invention relates to a method for the integral leak detection on test samples with relatively thin walls, in which the test sample () comprising the test gas is tested for leaks in a test chamber; in order to test whether or not test samples are properly filled with test gas, it is...
A method and apparatus for detecting and locating leaks in geomembrane liners (20) used to contain liquids (17) within surface impoundment facilities. A nonintrusive electrical measurement technique is used to survey a liquid impoundment... CONVERSE MERLE EDWARD[US],PETERS WENDELL RICHARD[US],FOUNTA...
Patents:7 Technology and appearance design patents;Language:English,French, Chinese and Arabic;Certificates:CE. ISO;Gold Supplier:Yes;OEM:Yes;Power Supply:DC12V 4000mAh Built-in Battery;Product name:underground water detector;Keyword:fresh result water d
coli in food, water, urine and environmental samples. MUGlcU is stable to the conditions required for sterilization of media. A fluorogenic bioassay using MUGlcU has been developed to assess the detrimental effects of Li+, Al3+, Cr6+ and Hg2+ on the proliferation of E. coli. MUGl...
None of these devices is widely applicable to detecting leaks in secondary containment systems, where the sensing must typically be done in very close quarters, often in the gap between two closely-spaced walls. In addition, an environment of use may be corrosive, and a relatively large amount...
Known devices for detecting water level in a fuel container include resistive probes and capacitive probes. The resistive probes depend upon insulating qualities of the fuel oil to establish a high resistive impedance between a probe and the walls of the container, and if water is present in suff...
Test gas passing through leaks is supplied via a duct to the outlet of a turbine vacuum pump to reach against the direction of pumping a gas detector connected to the pump inlet. Pump rotational frequency is adjusted so that the detector gives a signal of predetermined magnitude and the ...
CONSTITUTION:A tank formed with side walls 1 and a bottom wall 2 of concrete, that is, a pool 2 is filled with water up to a liquid level 4. When, for instance, a damaged part exists in a lining 6, water in a detection box 20 leaks out in the side wall 1 through the damaged ...
A method and apparatus for detecting leaks in a test chamber utilizing pressurization of the chamber with a gas, compares the rate of change of the gas pressure in the test chamber with the rate of change of the temperature of that chamber with the difference in such rates of change being ...