Product category:
Position, speed and torque measurement
News Release from: Datum Electronics | Subject: DSTT420
Edited by the Processingtalk Editorial
Team on 07 June 2005
Drive shaft and prop shaft torque
transducers
Drive shaft and prop shaft transmit power in machinery across the world: an accurate and simple measurement of the torque transmitted can be invaluable to improve designs and protect the machinery
Drive shaft and prop shaft transmit power in machinery throughout the world In many cases they are driven to the limits in applications such as motor-sport or subject to occasional overload in applications such as factory drive systems
This article was originally published on Processingtalk on 11 Apr 2008 at 8.00am (UK)
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Whatever the application an accurate and simple measurement of the torque transmitted can be invaluable to improve designs, protect the machinery and monitor or control its performance.
The two systems offered by Datum provide effective on-shaft torque monitoring which will fit a wide range of shafts, which type will vary depending upon your requirements.
The first is the Series DSTT420 which is designed to fit on to permanent installations and is self powered.
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The second is the Series DSTT430 which is designed to be used as a trials kit, which is powered by batteries, which uses short range telemetry technology transmitted to a receiver.
Series DSTT420 is our 'permanent' solution which is self-powered, allowing the transducer to be installed on the majority of drive shafts and is robust enough to work in harsh environments.
There is no need to move or disrupt the equipment connected to the drive shaft, we can install directly on to the shaft.
This is the recommended option for continuous condition monitoring.
Series DSTT430 is our Trials version of the permanent solution.
The Series 430 is battery powered and a completely self-contained shaft unit that uses short range telemetry technology to transmit the digital data to a receiver.
The receiver has a transmission range of up to 30 metres and can sample raw data at 300 samples per second.
The battery can replaced or re-charged as and when necessary.
The DSTT offers on-shaft torque monitoring providing a range of different analysis allowing you to increase power efficiency on to your shaft, or enable a more efficient power output through your system.
You can record and analyse the data, allowing you to make minor changes enabling you to gain that extra efficiency that you require.
The type of event analysis provided by the DSTT includes.
* Drive Train Analysis.
* Torque levels.
* Transient Event Analysis.
* Offset and Cyclic Load.
* Overload protection.
* Condition Monitoring.
* Economic Drive Control.
* Peak Torque Analysis.
* Measurement Analysis.
* On-Shaft Torque.
* Shaft Strains (bending, axial etc).
* Shaft Speed (non standard).
* Shaft Power (non standard).
The Drive Shaft Torque transducers have a system accuracy of 0.1% to 0.25% depending upon the size and diameter of the shaft.
The level of torque being measured is again dependant upon shaft size with the diameter ranging from 20mm up to 400mm.
It outputs in digital data (RS232) with an output of 4-20mA or 0-10Vdc as required.
All Power SAE Industrial Universal Joints also known as Spicer Drive Shafts series are in common usage on over the road vehicles, industrial and off highway applications.
They are designed for long life at moderate torque levels though they are capable of withstanding high momentary torques such as those encountered in starting a load or a vehicle moving.
They tend to be the most economical solution for applications where minimum swing diameters are not a requirement.
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