Temperature measurement kit works in remote areas
An Aspen Electronics product story
Edited by the Electronicstalk editorial team Nov 16, 2009
The Temptrackr multipoint wireless temperature measurement kit from Aspen Electronics is suitable for monitoring the temperature on equipment and installations in remote locations.
It can also be used where power and communication to the sensor is restricted.
Designed for systems integrators and original equipment manufacturers, the system is claimed to be simple to install and use.
It is also portable and offers good performance for real-time in-process temperature sensing.
Developed by Vectron International's Sengenuity division and manufactured in Germany, the starter kit contains three passive wireless temperature sensors, capable of measuring temperatures between 0C and +120C from a maximum interrogation distance of 1.78m.
The surface acoustic wave (SAW)-based sensors require no power source as they harvest energy from bursts of radio frequency emitted by a wireless interrogator, which excite resonators within each device.
Each of the wireless temperature sensors is supplied with three dipole antennas.
The wireless interrogator comes with its own dipole antenna and can operate with up to six sensors.
With multiple interrogation antennas, the system can support up to 12 sensors.
A USB connector provides the power to the interrogator and connects to any computer for displaying and analysing the data acquired.
In operation, a feedback signal conditioned by the temperature is created by the resonator and fed back electromagnetically to the wireless interrogator using the same antenna set.
The Temptrackr system is suitable for applications where access is restricted or difficult, such as rotating machinery and manufacturing or process control lines.
It is also ideal for use in high-temperature, high-pressure or high-voltage environments in the avionics or automotive sectors, for example, and for wireless sensor networks in remote locations for environmental monitoring or geological exploration.
The system can read multiple independent sensors in parallel, while the use of independent frequency bands (between 428MHz and 439MHz) ensures that each can be individually identified.
This is useful for applications where it is important to trace the precise location of temperature changes, according to the company.
Exclusive UK distributor Aspen Electronics can provide technical advice on how to configure the system to specific requirements.
The RoHS-compliant kits cost GBP2,000 and can be delivered within four to six weeks.
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