“…75 Additionally, other researchers have also conducted new research in this field. Turkani et al 76 proposed a novel conductive composite material and successfully fabricated a flexible nickel-based RTD on a flexible ceramic platform using a screen printing preparation process. Currently, organic polymer materials such as polydimethylsiloxane, polyurethane, and polyimide are widely utilized for preparing flexible substrates for wearable contact temperature sensors.…”
Section: Contact Temperature Typementioning
confidence: 99%
“…75 Additionally, other researchers have also conducted new research in this field. Turkani et al 76 proposed a novel conductive composite material and successfully fabricated a flexible nickel-based RTD on a flexible ceramic platform using a screen printing preparation process.Figure 5.Wearable temperature detection device: (a) Schematic diagram for the flexible sensor. (b) A glove equipped with three flexible sensors.…”
Intelligent wearable devices for security detection integrate flexible electronic components into protective equipment, enabling the detection of metals, explosives, human physiological conditions, and hazardous chemicals. While numerous studies have investigated various security detection technologies, a systematic literature review providing a comprehensive overview of the preparation and applications of intelligent wearables for security detection is lacking. Therefore, this paper aims to fill this gap by conducting a comprehensive examination of the application of intelligent wearables for security detection in specialized and temporary disposal environments. Additionally, the paper addresses existing challenges and discusses future directions for achieving greater progress in this domain.
“…75 Additionally, other researchers have also conducted new research in this field. Turkani et al 76 proposed a novel conductive composite material and successfully fabricated a flexible nickel-based RTD on a flexible ceramic platform using a screen printing preparation process. Currently, organic polymer materials such as polydimethylsiloxane, polyurethane, and polyimide are widely utilized for preparing flexible substrates for wearable contact temperature sensors.…”
Section: Contact Temperature Typementioning
confidence: 99%
“…75 Additionally, other researchers have also conducted new research in this field. Turkani et al 76 proposed a novel conductive composite material and successfully fabricated a flexible nickel-based RTD on a flexible ceramic platform using a screen printing preparation process.Figure 5.Wearable temperature detection device: (a) Schematic diagram for the flexible sensor. (b) A glove equipped with three flexible sensors.…”
Intelligent wearable devices for security detection integrate flexible electronic components into protective equipment, enabling the detection of metals, explosives, human physiological conditions, and hazardous chemicals. While numerous studies have investigated various security detection technologies, a systematic literature review providing a comprehensive overview of the preparation and applications of intelligent wearables for security detection is lacking. Therefore, this paper aims to fill this gap by conducting a comprehensive examination of the application of intelligent wearables for security detection in specialized and temporary disposal environments. Additionally, the paper addresses existing challenges and discusses future directions for achieving greater progress in this domain.
“…Concerning the sensing layer, platinum is commonly used as a sensing material due to its excellent corrosion resistance and electrical response with good linearity for wide ranges of temperature [ 19 , 20 , 21 , 22 , 23 ], but its use implies a high economic impact in its industrial production. As a cheaper alternative, other materials have been studied, such as nickel [ 24 , 25 , 26 , 27 ] or aluminium [ 28 , 29 ]. In some of these studies, transfer processes of the pattern to a curved substrate have been carried out, requiring complex methods and several materials.…”
Reducing the economic and environmental impact of industrial process may be achieved by the smartisation of different components. In this work, tube smartisation is presented via direct fabrication of a copper (Cu)-based resistive temperature detector (RTD) on their outer surfaces. The testing was carried out between room temperature and 250 °C. For this purpose, copper depositions were studied using mid-frequency (MF) and high-power impulse magnetron sputtering (HiPIMS). Stainless steel tubes with an outside inert ceramic coating were used after giving them a shot blasting treatment. The Cu deposition was performed at around 425 °C to improve adhesion as well as the electrical properties of the sensor. To generate the pattern of the Cu RTD, a photolithography process was carried out. The RTD was then protected from external degradation by a silicon oxide film deposited over it by means of two different techniques: sol–gel dipping technique and reactive magnetron sputtering. For the electrical characterisation of the sensor, an ad hoc test bench was used, based on the internal heating and the external temperature measurement with a thermographic camera. The results confirm the linearity (R2 > 0.999) and repeatability in the electrical properties of the copper RTD (confidence interval < 0.0005).
“…To enable an additive manufacturing process compatible with the PCB industry’s requirements, researchers investigated metal- and carbon-based materials. Printed silver and nickel thermistors with TCRs at 0.22 and 0.3%/°C, respectively, have been reported. For most carbon-based thermistors and RTDs, a maximum operating temperature below 100 °C is reported. − Although some PDMS-based devices with low operating temperatures are relevant for medical applications, they are not compatible with PCB technology .…”
In
this study, serigraphic-grade BiFeO3-based ink formulations
are produced and then mixed with graphene to enhance the performances
of screen-printed thermistor devices. The devices are printed atop
a standard thermally boosted glass-reinforced epoxy (FR-4) substrate
coated with interdigitated gold electrodes. The broader operating
temperature range of these thermistors makes them compatible with
standard printed circuit board (PCB) manufacturing and operating conditions.
Thus, we achieve highly sensitive devices with a temperature coefficient
of resistance (TCR) of −0.96%/°C, which is the highest
sensitivity reported yet for any graphene-based thermistor operating
from 25 to 170 °C. The best-performing devices are loaded with
3.5 wt % graphene. These low-hysteresis and stable thermistors boast
a thermal index (β-coefficient) of 864 K. This optimal graphene
loading occurs just above the percolation threshold.
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