Temperature is one of the most required physical
quantities to be measured across all industries. Seamless, accurate, real-time
and reliable measurements are critical across all verticals – from managing
the manufacturing process to saving patients’ lives.
Market offers a wide range of solutions including thermocouples, resistance
temperature detectors (RTDs), thermistors, infrared thermometers, or
RVmagnetics offers a customised
alternative – sensor based on magnetic principles, able to measure
temperature with a sensitivity of 0.01 °C (in narrow range) . A potential
temperature measurement range varies depending on the application covering an
interval from –273°C up to 200°C (with heat-resistant equipment even higher
and special composition of MicroWires even 500°C). Same as for other commercial
sensors, the sensitivity of the single sensor is dependent on the temperature
range (smaller the range, higher the accuracy).
A tailor-made sensing solution provides benefits such as size, range,
chemical resistance, and on top of it mechanically independent results.
As the microwire is a passive sensor, it does not require any wiring directly
to the sensor itself. Due to its size, it can be embedded inside the materials,
without creating any flaws in the material (delamination of fibres within
composite). The measurement can still be performed from the outside when
necessary. Data acquisition can be performed even through the metals and in
ideal case up to 10 cm distance.
RVmagnetics offers an opportunity to use a microwire sensor as a reliable
qualitative temperature sensor – providing only digital information, whether
the temperature was overshot.
Demonstration of Temperature measurement with MicroWire sensors
In the video, we present the Temperature detection demonstration kit. The
reason for the demonstration and the experiment is to showcase the contactless
detection of temperature.
The main parts of the demo-kit are:
black-box which includes the sensing head and electronics (the size and
shape of a final sensing system are tailor-made to meet the spatial
plastic bar with a temperature-dependent microwire attached,
tablet containing a custom-designed application communicating with the
black-box via Bluetooth, displaying the real-time measurement of the
Measurement of the MicroWire attached to the plastic bar provides the
temperature of its surrounding, which is room (ambient) temperature. As the
finger is placed on the plastic bar, the temperature of the finger transfers
heat to the bar, which is quickly detected by the MicroWire.
It is possible to develop a highly-accurate temperature sensor, with a
customised, miniature hardware solution as per the client's requirement.
Further, it is possible to create a heat distribution map, monitor the
cooling and heating of certain locations of different materials, etc.
With the possibilities being vast and unique per client – it is important to
showcase the basics of the system, which we present in the video.