Product category:
Torque measurement
News Release from: Datum Electronics | Subject: Series DSTT420, Series DSTT420
Edited by the Manufacturingtalk Editorial
Team on 07 June 2005
On-shaft torque monitoring for wide
range
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 users' requirements.
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 users' requirements The first is the Series DSTT420, which is designed to fit on to permanent installations and is self-powered
This article was originally published on Manufacturingtalk on 30 Apr 2008 at 8.00am (UK)
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The second is the Series DSTT430 which is designed to be used as a trails kit, which is powered by batteries, and which uses short range telemetry transmitted to a receiver.
Series DSTT420 is claimed to allow 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, as Datum can install the unit directly onto the shaft, which the company recommends for continuous condition monitoring.
Further reading
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.
Torsional vibration and ripple analysis
Datum Electronics has the capability to prepare specialist measurement systems to assist with the analysis of dynamic torque in a wide range of applications.
Torque sensing products improve performance
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.
Series DSTT430 is a completely self-contained shaft unit that uses short range telemetry 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, said the company.
The DSTT offers on-shaft torque monitoring and provides a range of different analyses allowing users to increase power efficiency onto the shaft, or to enable a more efficient power output through users' systems, who can record and analyse the data, allowing them to make minor changes and enabling them to gain extra efficiency, claimed Datum.
The type of event analysis provided by the DSTT includes drive train analysis, torque levels, transient event analysis, offset and cyclic load, overload protection and condition monitoring.
It also provides economic drive control and peak torque analysis, added the company, whilst performing measurement analysis for on-shaft torque, shaft strains (bending and axial, for instance), shaft speed (non-standard) and shaft power (non-standard).
The Drive Shaft Torque transducers have a claimed system accuracy of 0.1 per cent to 0.25 per cent, 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, said Datum.
In Datum's opinion, in many cases drive shafts around the world are driven to the limits in applications such as motor-sport, or subject to occasional overload in factory drive systems.
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.
All power SAE industrial universal joints, also known as Spicer Drive Shafts series, are in common usage on 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 option for applications where minimum swing diameters are not a requirement.
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