Torque and angle measurement sensor aimed at power take off shafts

19-02-2015 | Ixthus Instrumentation | Test & Measurement

Available exclusively in the UK and Ireland from Ixthus Instrumentation,
NCTE’s new 7500 Series torque and angle measurement sensor is aimed at
convenient and cost-effective solutions for power take off (PTO) shafts in
agricultural and forestry machinery where it is designed to help ensure the
safe operation of connected equipment such as grain augers and silage
blowers.

The non-contacting IP65 rated sensor is exceptionally robust against
mechanical and thermal influences and is maintenance free. With torque-only
or torque + angle versions available, the 7500 Series is offered in torque
measurement ranges of 500, 1000 or 2000Nm with speeds to 5000 rpm. Its
overall accuracy combines linearity to < +/-0.5% across the full scale
measurement range with repeatability to < 0.05% and rotational signal
uniformity to < +/- 0.5%.

The compact torque sensor has a nominal diameter of 85mm and a body length
or under 100mm. Its one-piece ‘plug and play’ design with integrated
electronics and single connector and cable connection is simply installed
in-line on the PTO shaft where its wide choice of mechanical installation
options, including flange mounting as well as PTO splined shaft or splined
bush, ensure maximum installation convenience. Output signals are a choice
of 0-10V, 4-20mA or CANbus from an 11 to 28VDC supply.

An optional readout unit is available for simple connection to the 7500
series torque sensor to provide both torque and angle measurement which can
be read through a USB interface as well as provide data storage via an
SD-card.

NCTE’s force and torque sensors use the physical principle known as the
inverse magnetostrictive effect where forces acting on magnetically encoded
components change the magnetic field surrounding it - where even minute
magnetic changes are detected to enable highly precise and real-time data
acquisition of the acting forces. This non-contacting and maintenance free
technology requires no re-calibration, is durable and extremely stable, and
functions in oil or under water. The technology is available in a wide
range of standard products in pillow block and in-line shaft-mounted
designs, and is also easily adapted for customised solutions.
NCTE’s sensor technology is well proven for demanding torque, force and
angle position measurement applications in industrial test and measurement,
engine and plant construction, transportation, construction, agricultural,
automotive, motorsports and many others, says the company.

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