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A dyno machine has a variety of uses that help engine manufactures, vehicle manufactures, and other manufacturers determine the power and output of their machines. The dynamometer helps determine the safety and usefulness of the machine, and helps with diagnostic testing in a variety of industries, including vehicle manufacturing, the medical industry, engine manufacturing, pump manufacturing, and many other industries. In general, a dyno machine will measure the following elements of each engine, vehicle, or machine placed on the testing block:
Torque: Torque is the amount of force required to rotate an object around an axis. A measurement of torque is required for most motor vehicles and any other machine that uses an axis and rotating parts. The dynamometer used to measure the torque of a machine is a motoring or driving dynamometer, which is designed to measure the rotating power of the machine.
Speed: Dynamometer machines are also used to determine the top speed, base speed, average speed, and other speed tests in vehicles and other machines or engines. Usually, the dynamometer used to determine the top speed of a machine is called a absorption or passive dynamometer, which absorbs the energy produced by the machine and measures it by the rate of absorption.
Vibrations: Passive dynamometers are also used to test the vibration level of a machine. The dynamometer machine absorbs the energy created by the vibrations and measures how much energy is lost through vibrations. If a company wants a machine with less vibration, then they will adjust the torque and power of the engine to make it run smoothly.
Emissions: Universal or active dynamometers combine the elements of both passive and driving dynamometers. These machines can measure torque, power, vibrations, speed, and a variety of other elements of a machine, such as the emissions level of an engine. Most engine manufactures have to test the emission level of each engine to conform to the Environmental Protection Agency guidelines.