Search results
Results from the WOW.Com Content Network
Original file (WebM audio/video file, VP8/Vorbis, length 5 min 52 s, 872 × 490 pixels, 1.15 Mbps overall, file size: 48.34 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
A 6-minute ‘how-it-works video’ tutorial explaining how engine-dynamometer and chassis dyno eddy-current absorbers work. Most chassis dynamometers and many engine dynos use an eddy-current brake as a means of providing an electrically adjustable load on the engine. They are often referred to as an "absorber" in such applications.
Most systems employ eddy current, oil hydraulic, or DC motor produced loads because of their linear and quick load change abilities. The power is calculated as the product of angular velocity and torque. A motoring dynamometer acts as a motor that drives the equipment under test. It must be able to drive the equipment at any speed and develop ...
In electromagnetism, an eddy current (also called Foucault's current) is a loop of electric current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction or by the relative motion of a conductor in a magnetic field. Eddy currents flow in closed loops within conductors, in planes ...
English: A diagram showing how a disk-type eddy current brake works. Eddy current brakes are used in power tools like circular saws to stop the blade quickly, and in electric meters. The brake consists of a spinning conductive metal disk (D) spinning counterclockwise in this example, whose surface is positioned between the poles of a magnet (N ...
What is an eddy current dynamometer? --Gbleem 04:22, 1 June 2006 (UTC) See answer below by =Motorhead. I have added eddy current or electromagnetic brake to the article under heading: Types of absorption units. --C J Cowie 16:27, 1 June 2006 (UTC)
In the traditional version of eddy current testing an alternating (AC) magnetic field is used to induce eddy currents inside the material to be investigated. If the material contains a crack or flaw which make the spatial distribution of the electrical conductivity nonuniform, the path of the eddy currents is perturbed and the impedance of the ...
Prony brake dynamometers at a tractor contest in 1910 Schematic of a Prony brake Actual Prony Brake built for testing 5HP Steam Engine. The Prony brake is a simple device invented by Gaspard de Prony in 1821 to measure the torque produced by an engine. The term "brake horsepower" is one measurement of power derived from this method of measuring ...