Product category:
Torque measurement
News Release from: Datum Electronics | Subject: Series 420 torque transducers
Edited by the Manufacturingtalk Editorial
Team on 26 February 2008
Torque transducers have direct USB
output
Providing a reliable non-contact method of measuring rotary torque, torque transducers offer direct USB output of torque logging for PCs and laptops to display and log torque data.
The Datum Electronics series 420 torque transducers are a reliable non-contact method of measuring rotary torque Operating with no direct contact from the rotor to the stator, they are claimed to be more efficient, are cost effective and have improved longevity
This article was originally published on Manufacturingtalk on 30 Apr 2008 at 8.00am (UK)
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Developments in signal processing and transmission have greatly enhanced the capability of torque transducers, leading to improved machine efficiency, accurate monitoring, reduced failure rates
The torque transducers now offer direct USB output of torque logging to make it compatible for PCs and laptops to display and log torque data.
* Accurate and dependable torque transducers - torque measuring systems are available either as complete torque transducer or as separate rotor and stator assembly, for high speed test rig and OEM applications.
They provide a system accuracy of 0.1% of full scale either into a PC or laptop via USB, independent control system or a rack-mounted Torque Indicator.
Further reading
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Datum Electronics'range of torque sensing products, improving performance and reliability, is available with competitive pricing and a range from 2Nm up to 10,000Nm.
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All Datum Electronics torque transducers have a strain gauged central element and a set of rotating conditioning electronics.
It outputs digital signals to the non-rotating body or stator of the system.
The Series 420 has three different types of torque transducer, each with their own functionality and for use within different environments.
* M420 Torque Transducer - the M420 is a standard rotary torque transducer.
It has the rotary shaft and a stator built into its static housing.
The housing is mounted on the shaft with bearings.
The M420 series torque transducer is available in four standard sizes to meet the needs within a torque measuring environment.
Torque Transducer Ratings are 0-100Nm, 0-500Nm, 0-2,000Nm and 0-10,000Nm.
The M420 torque sensor is highly accurate, with a combined error of 0.1% as standard on all M420 Torque Transducer sizes.
They provide a digital data signal (USB), which can measure torque, speed and power.
They are suitable for use on test rig applications and permanent installations.
* FF420 Torque Transducers - these are flange torque transducers, which match standard DIN Flanges within test rigs and drive systems.
The torque transducer element in this case is a flange-flange coupling with the strain gauges and the rotor electronics mounted in the centre section of the coupling.
The signal is transmitted across a digital transmission coupling link to the stator that is mounted around the centre of the coupling.
The rotating element of the torque transducer is not limited by bearings; therefore it can be used at higher speeds, and places no bearing loads on to the shaft.
The stator needs to be mounted in relation to the shaft within an operating envelope of +/-3 to 5mm.
Datum Electronics has standardised its range of torque transducers for clear and simple applications and specifications.
Torque Transducer Ratings are 0-250Nm, 0-500Nm, 0-2,000Nm and 0-10,000Nm.
The FF420 torque transducer is highly accurate with a combined error of 0.1%.
It uses a true 'non-contact' transmission signal.
Another advantage of the FF420 torque transducer is that is tolerable to misalignment, because of the way the torque transducer is engineered.
The standard ranges are compatible with DIN Size flanges.
* RS420 Torque Transducers - the RS420 is a rotor/stator torque transducer with a keyed shaft and a free standing stator.
This type of torque transducer is very similar to the FF420 but has keyed or splined shafts as opposed to flanges.
The torque transducer element in this case is a keyway or splined shaft with the strain gauges and the rotor electronics mounted either on the shaft, or inside the shaft depending upon shaft size and feasibility.
The signal is transmitted across an inductive link to the stator that is mounted around the centre of the coupling, with a visible air gap.
This type of torque transducer has no bearings and there is no secondary load on the test shaft, which allows for multiple shaft sizes.
Because the torque transducer has no bearings, iDatum Electronics told manufactuingtalk.com that it can be used at higher speeds, running much faster and longer than traditional torque transducers containing bearings.
The stator needs to be mounted in relation to the shaft within an operating envelope of +/-3 to 5mm.
Datum Electronics has standardised our range of torque transducers for clear and simple applications and specifications.
Torque transducer ratings are 0-100Nm, 0-500Nm, 0-2,000Nm and 0-10,000Nm.
The RS420 torque transducer is highly accurate with a combined error of 0.1%.
It uses a true 'non-contact' transmission signal.
Another advantage of the RS420 is that is tolerable to misalignment, because of the way the transducer is engineered.
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