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. 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.
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SAKOR Technologies, Inc.Okemos, MI 517-332-7256 SAKOR provides brake dynamometers for a wide range of applications and its test cell control system is compatible with all types, including AC & DC motoring equipment among more. SAKOR's products all include the durability & quality customers expect from this leading company and are powerful & affordable solutions for the automotive, aerospace & heavy equipment industries.
Wineman Technology, Inc.Saginaw, MI 989-771-3000 Wineman Technology specializes in providing the right technical solution to solve a wide range of applications and has the experience to ensure your success. Wineman offers a full range of solutions with innovative technology with turn-key test cell integration along with test cell upgrades and modernization for all types of brake dynamometers. Please contact Wineman today with any questions.
Land & Sea, Inc.Concord, NH 866-396-6648 Land & Sea, Inc. manufactures the world`s most complete line of affordable DYNOmite brake dynamometer systems and factory produces a wide variety of units, along with DYNOmite Data-Acquisition electronics and DYNOMAX 2010 control software. Applications include: automotive, industrial (diesel), laboratory (small engine), marine (prop shaft), motorcycle, truck and unique (custom) solutions.
Power Test, Inc.Sussex, WI 262-252-4301 Power Test is an industry leader in the design, manufacture and implementation of brake dynamometers and control systems. For more than 35 years, Power Test has provided its specialized test equipment to manufacturers, rebuilding facilities and distributors globally. Power Test's products can be found worldwide and its unparalleled customer service is well known throughout the industry.
Locher, Inc.Lancaster, OH 800-956-2437 Locher offers a variety of services, products and machine repairs, including quality manufactured brake dynamometers, test bars, tool holder gages & tapered gages. Locher assure you that it products & services are designed & manufactured by highly trained experts who utilize the latest in equipment & technology, readily able to provide you with satisfactory solutions with a quick turnaround.
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Brake Dynamometers
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.
