Dynamometers and dynamometer manufacturers including torque testers, dynos, engine dynamometer, force measuring, and chassis dynamometers.  

Information Page Links:

Featured Dynamometer Manufacturers

About Dynamometers

Dynamometer Terms

Dynamometer Associations

Dynamometer Resources

Trade Shows

Featured Dynamometer Articles

More Articles

ISO - International Organization
for Standardization

Back

Dynamometer Terms

Ambient Temperature – Temperature of the surrounding medium.

Base Line – A vibration reading of a piece of equipment in good operating condition. The baseline becomes a reference point for testing and monitoring.
 
Breakdown Torque – Also known as maximum torque or pull-out torque, the highest torque that an AC motor will produce with the application of rated voltage and frequency, and no abrupt drop in speed.

Chassis – The part of a motor vehicle that includes the engine, the frame, the suspension system, the wheels, the steering mechanism etc., but not the body.

Code Letter – The letter on AC motor nameplates that signifies the locked rotor kilovolt amperes per horsepower at rated frequency and voltage.

Dynamometer – A machine that measures the power by absorption derived from an internal combustion engine.

Full Load Speed – The R.P.M. for an engine or generator, which is available at torque capacity.

Full Load Torque – For an engine or generator, it refers to the torque necessary to produce its rated horsepower at full load speed.

Horsepower (hp) – Unit of rate of doing work. One horesepower equals about 550 foot-pounds per second or 746 watts.

Inertia – Any motion or movement that is not in a straight line but remains constant in velocity.

Locked Rotor Torque – The lowest torque that at an engine will produce from a standstill position, as measured from all angular positions of the rotor, with rated voltage applied at rated frequency.

Output – The product of the torque available to do work times the rated R.P.M.

Rotor – The rotating part of a motor or engine.

R.P.M. (Revolutions Per Minute) – Unit of measurement to determine power and torque.

Throttle – The act of acceleration.

Torque – The measure of the force applied to produce rotational motion, usually measured in foot-pounds.

Transmission – The gears that transmit power from an automobile engine via the driveshaft to the live axle.

Trending – A reading of the variation in the measurement of data over no less than three data measurement intervals.

Velocity – The rate of change of position in relation to time.

Wide Open Throttle (WOT) – The position of the pedal that allows the maximum amount of air to pass into the intake manifold.