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Torque Sensors Offer Simple Installation
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Date Added: 4th May 2012
We all can relate to the rolling road dynamometer seen in many MOT testing garages where whole vehicles can be tested not only for braking force but also for brake horsepower.
However, I find as an engineer with a design background, that measuring torque force on a continuous basis with rotary torque sensors (or dynamic torque sensors as they are sometimes known), is an elegant solution for performance testing of automotive components such as engines, clutches, and transmissions. Calculating torque force in continuous dynamic testing is very much a high-tech business.
Applied Measurements Ltd’s range of slip ring rotary torque sensor products are all based on measuring the amount of twist on a shaft transmitting power with known properties such as its Young’s Modulus of Elasticity. This is done by means of 4 very small strain sensors bonded to the shaft shell at 45º to the line of shaft in a characteristic diamond or cruciform formation. The strain gauges are wired into a Wheatstone Bridge circuit which is excited by a DC voltage typically between 1.5 to 18 V and the output voltage is measured and converted to a reliable and accurate torque.
The slip ring dynamic torque sensors use the well-tried principle of slip ring technology to transfer both the input DC voltage and the output signal voltage between the rotating shaft and static signal digitiser/amplifier unit.
The YDFF range of slip ring torque sensors from Applied Measurements are designed to operate and rotational speeds of between 2,000 and 5,000 rpm. This speed range makes them ideal for automotive testing applications and many other industrial applications.
One of the main benefits of the flanged unit is that it can be mounted in line on the power transmission system by means of standard flanged connections. The YDFF range of 8 units all feature 8 threaded holes M6mm to M8mm depending on the size of unit on the mating surfaces for easy connection and dismantling. Other headline features include a compact body and a mounting foot. The torque ranges from the 50 Nm unit with a maximum speed of 5,000 rpm and to the very large 5kNm unit with a maximum speed of 2,000 rpm. The flange size ranges from 64 mm diameter to 74 mm.
To complete the ease of installation and set up, Applied Measurement can offer a complete range of signal digitisers, amplifiers, and remote read out in torque units display units and telemetry units for incorporation into industry-standard control systems.
Applied Measurement’s range of rotary torque transducers and sensors cover all conceivable applications from a tiny 0.1Nm as their TLS parallel shaft brushless transducer to the very large and new DTDR-F wireless telemetry transducer with a capacity of 50kNm, or even the mighty YDH slip ring flanged transducer with a capacity of 80kNm. Units in the range include keyed shaft and square drive connections as well as the flanged units.
More from this supplier | More from this category: Sensors
More from this subcategory: Torque Sensors