A Magnehlic gauge is used to measure fan pressure, blower pressure, air velocity, furnace draft, pressure drop across orifice plates, liquid levels in bubbler systems, pressures in fluidic systems and filter resistance, according to Dwyer Instruments, Inc. These types of gauges are primarily found in commercial and industrial applications with regards to heating, ventilation and air conditioning (HVAC) systems.Know More
Magnehlic gauges feature accuracy to within 2 percent with more than 80 models available. Users can determine low air pressure, corrosive gas pressure and differential very quickly. ContractingBusiness.com reveals that the overall use for Magnehlic devices is to measure airflow within systems. These gauges help trained professionals determine whether to increase airflow efficiency in heating and cooling ducts.
Some devices can easily detect airflow movements. Gauges are attached to rubber tubing via a static pressure tip. The other end of the tubing is inserted directly into key areas of ductwork. Air flows out of the duct through a small hole into the tubing and up to the pressure gauge where the air moves a needle across a series of numbers. When readings are properly taken, experts compare the pressure to ratings for that particular system. Readings that are too low indicate something must be done to increase the flow of air within the HVAC system.Learn more about Motion & Mechanics
The formula for Hooke's law is given by F = kx, where x is the displacement in the spring in meters, k is the force constant or spring constant and F is the amount of force applied on the spring in Newtons. Hooke's law states that the amount of stress applied on an object to deform it is proportional to the amount of deformation. It can be used to determine the force, displacement and force constant in a stretched spring.Full Answer >
Water turbines convert the motion of moving water into rotating mechanical energy by catching the water with large blades. They are important to the structure and function of hydropower plants. There are different models of water turbines, but all perform the same basic function of converting the energy of the moving water into the revolutions of a shaft.Full Answer >
Kepler's second law implies that the closer a planet is to its star, the faster the planet travels. This law is related to conservation of angular momentum. The law is important because the planets' orbits around stars are not circular, so planets are closer to their stars at certain points.Full Answer >
Static loads are loads that exert a constant amount of force, while dynamic loads exert varying amounts of force upon the structure that is upholding them. A simple example of a static load is the weight of a bridge span upon the bridge pilings holding it aloft. A truck moving across that same bridge span would be exerting a dynamic load on the pilings.Full Answer >