According to Wikipedia, dynamometer is a device used for measuring the torque and brake power required to operate a driven machine. For instance, the power produced by an engine, motor or other rotating prime mover can be calculated by simultaneously measuring torque and rotational speed. A dynamometer that is designed to be driven is called an absorption or passive dynamometer. A dynamometer that can either drive or absorb is called a universal or active dynamometer.
Prony brake dynamometer measure brake power, while rope brake dynamometer measures the brake power of an engine. Eddy current dynamometer are currently the most common absorbers used in modern chassis dynos. Hydraulic dynamometers are machines that measure the power of engine by using a cell filled with liquid to increase its load, while absorption dynamometer is a device for measuring the torque or power of an engine in a process in which the energy supplied to the device by the engine is absorbed.
Patients with hand trauma has to undergo routine screening of grip and hand strength. In such cases, hand-held dynamometers are used. When doctors suspected with peripheral nerves or compromise of cervical nerve, the autoclaves are used to measure a grip strength. Apart from power and torque measurement, dynamometers can be used as part of a testbed for variety of engine development activities such as the calibration of engine management controllers, detailed investigation in to combustion behaviour and tribology.
Eddy current dynamometers are widely accepted in automotive industry. They are precise and have low maintenance. They have rapid response and are repeatable alternative to water break technology. Hydraulic dynamometers are renowned for having the quickest load change ability, just slightly surpassing eddy current absorbers. In short, dynamometers have more power and have maximum reliability. Dynamometers increase fuel economy and gives greater torque spread. It also improve throttle response.
Dynamometer industry deals with three industries such as manufacturing, automotive and aerospace. Manufacturing industry is dominant followed by automotive and aerospace. As the use of dynamometer in manufacturing sector is dominated by motors and generators, this segment largely contributes to global dynamometer revenue. The main reason behind increasing demand of electrical motors is the robust development in factory automation market.
Demand for electric motor in factory automation will fuel the dynamometer market. The major drivers for dynamometer in automotive applications are enhanced accuracy, increasing demand for vehicle quality standards, and increasing awareness towards quality in developing countries.
North America is the largest market for dynamometers. Growing demand for hydraulic dynamometers, particularly in energy and power industry will drive dynamometers market in North America. The significant investment in the manufacturing sector is also creating lucrative market for dynamometers in North America. Rising demand from the oil and gas extraction, industrial machinery, waste water treatment and pharmaceutical verticals is restoring automation market in Asia Pacific region.
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Dynamometer will play key role in accurateness and measurement of the equipment when it comes to speed, force, torque and power. Manufacturing industry attributing to the growth in electric motor demand will drive the revenues for dynamometer market. The growing manufacturing and automotive segments in various regions will also create an attractive market for dynamometers in future.