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It is difficult to arrest the primary context for dynamometer use in precise terms; their application ranges from the measurement of force exerted by a human hand as well as the measurement of combustion engine horsepower. Read More…

Brake Dynamometers A brake dynamometer is a dynamometer that measures horsepower at the engine's output shaft. All dynamometers are used to measure the performance of something.
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Leading Manufacturers

Owosso, MI  |  989-720-2700

We provide dynamometer test controls and equipment for a wide range of applications. Our test cell control system is compatible with all types of dynamometers, including AC & DC motoring dynos & Water Brake Systems. Our products all include the durability & quality customers expect from SAKOR. Our dynamometers are powerful & affordable for the automotive, aerospace & heavy equipment industries.

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SAKOR Technologies, Inc. $$$

Sturtevant, WI  |  818-746-3649

Phoenix Dynamometer Technologies LLC offers the most comprehensive approach to water re-circulation systems, data acquisition systems, and dynamometers in the industry. Along with these high performance products, we also offer business continuity and a competitive advantage for our customers. Come and experience the kind of service that sets us above our competitors. We would love to serve you today. Call or visit us online!

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Phoenix Dynamometer Technologies LLC $$$

Sussex, WI  |  262-252-4301

Since our inception we have been committed to manufacturing top of the line dynamometers that will stand up to the rigorous wear and tear of every day application. Our products serve in many diverse industries including automotive, automation, industrial as well as a broad variety of others! To learn more about what we may be able to do for you visit our website today for more information!

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Power Test, Inc. $$$

Fort Lauderdale, FL  |  954-462-1932

The R. D. Jacobs Company is an authorized dealer/distributor for Dillon Force Measurement Products since 1967. We specialize in mechanical and electronic dynamometers and force gauges, crane scales, load cells, force control switches, tension meters, and material testing systems.

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R.D. Jacobs Company $$$
placeholder image SAKOR Technologies, Inc. Phoenix Dynamometer Technologies LLC Power Test, Inc. R.D. Jacobs Company

Brake dynamometers are most widely used in the measurement of the forces generated by motors. In that context, brake dynamometers can be considered varieties of engine dynamometers or motor testers. They take their name from the method by which they produce measurements of force generation in an engine. A brake is a utility that inhibits motion in a machine. When a brake is applied to a motor, it resists the movement that results from the force generated by that motor.

The amount of force necessary to inhibit motion can be measured, and the expression of that measurement and its appearance on a display is the fulfillment of a brake dynamometer's purpose. One of the first ever brake dynamometers was the de Prony brake, invented by Gaspard de Prony in 1821.

The de Prony brake is a mechanical friction brake. Wrapping a belt or cord around the output shaft of the engine and measuring the force transferred to the belt produces the measurement. Measurement takes place by attaching a pair of spring balances to the brake.

While the shaft is rotating, one balance will show an increase in tension and the other will show a decrease in tension. Water brake dynamometers, also called hydraulic dynamometers, are very popular for engine testing because they have a high power capability while remaining inexpensive to operate. The most common type of water brake is called a variable level water brake. In this type of brake dynamometer, water is added until the engine is held at a steady RPM. The water is then kept at that level and replaced by constant draining and refilling that carries away the heat created by absorbing the horsepower. In response to the torque, the housing attempts to rotate, but it is restrained by the torque metering cell.

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Dynamometers Power Pages

Dynamometers

Dynamometers

A dynamometer is a measuring device used to determine the torque, force, speed, and power required to operate the drive on a machine or motor, which can be measured by evaluating the torque and rotational speed of a motor simultaneously...

Engine Dyno

Engine Dyno

An engine dynamometer is a device used to test an internal combustion engine that has been removed from a car, ship, generator, or any other accessory that uses one. The goal is to verify performance before reinstalling the engine in the equipment...

Calibration Services

Calibration Services

A calibration service is a service aimed at detecting the inaccuracy and uncertainty of a measuring instrument or piece of equipment. In calibration, the device under test (DUT) is compared to a reference of known value to determine the deviation of the measurement from the true value...

Test and Measurement Equipment

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