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Posted on April 1, 2006 by Jesse Rosato | Posted under Consumer Electronics
Vacuum Pressure - The Basics
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While low vacuum pressure may sound like it would have the lowest pressure associated with it, in actuality the reverse is true. A low vacuum is an air pressure measurement that is between 100,000 and 3,000 Pascals. A medium vacuum has between 3,000 and .1 Pascals. A high vacuum pressure is defined as pressure that ranges between .1 and .0001 Pascals. A very high vacuum is defined as pressure measurement between .0001 and .0000001. An ultra high vacuum, also referred to as a UHV, ranges between .0000001 and .0000000001. Finally an extremely high vacuum, also referred to as an EHV or an XHV, is a pressure measurement less than .0000000001. While there are many different types of vacuums on the market, most vacuums contain the same basic components. These components include an intake port, and exhaust port, a fan, an electric motor, a filtration system, and a housing compartment. These components work together in the following manner to create a low grade vacuum which can be directed through the use of an attached hose to suck dirt and debris from the exterior. A vacuum cleaner, as the name suggests, works by creating low vacuum conditions within the housing of the vacuum. To do this air pressure is manipulated through the use of an electric motor, intake and exhaust ports, and a fan. To start with the motor is turned on. This forces a fan with angled blades to rotate rapidly. The rotation of the angled blades force air forward and out through the exhaust port. As the air is forced forward the air molecules are compressed and the air pressure is increased. The movement of the air out of the exhaust port creates a low air pressure zone near the intake port. This air pressure is lower than the external ambient air pressure, and as a result the ambient air forces its way into the intake port. This is how a vacuum cleaner works. As long as the power is on and the air is moving the low vacuum will continue to suck in ambient air through the intake port, and force air out through the exhaust port. Suction power is usually impacted by the collection of dust and debris on the filtration system. This build slows the movement of air through the porous bag or filtration system, which weakens the strength of the vacuum. To make sure that your vacuum has maximum suction power make sure that you keep your filters clean and clear or debris build ups. This can be done by replacing the filters based on the manufacturer's recommendations, as well as manually tapping off excessive dust between filter changes, or by washing reusable filters. About The Author: Jesse Rosato is the Editor and Publisher of Article Click. For more FREE articles for your ezine and websites visit - www.articleclick.com |
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