Details
| Original language | English |
|---|---|
| Article number | 870 |
| Number of pages | 15 |
| Journal | Machines |
| Volume | 10 |
| Issue number | 10 |
| Publication status | Published - 27 Sept 2022 |
Abstract
In the context of intelligent components in industrial applications in the automotive, energy or construction sector, sensor monitoring is crucial for security issues and to avoid long and costly downtimes. This article discusses component-inherent thin-film sensors for this purpose, which, in contrast to conventional sensor technology, can be applied inseparably onto the component’s surface via sputtering, so that a maximum of information about the component’s condition can be generated, especially regarding deformation. This article examines whether the sensors can continue to generate reliable measurement data even after critical component loads have been applied. This extends their field of use concerning plastic deformation behavior. Therefore, any change in sensor properties is necessary for ongoing elastic strain measurements. These novel fundamentals are established for thin-film constantan strain gauges and platinum temperature sensors on steel substrates. In general, a k-factor decrease and an increase in the temperature coefficient of resistance with increasing plastic deformation could be observed until a sensor failure above 0.5% plastic deformation (constantan) occurred (1.3% for platinum). Knowing these values makes it possible to continue measuring elastic strains after critical load conditions on a machine component in terms of plastic deformation. Additionally, a method of sensor-data fusion for the clear determination of plastic deformation and temperature change is presented.
Keywords
- bearings, k-factor, plastic deformation, sensor data fusion, sputtering, strain gauge, temperature coefficient of resistance, temperature sensor, thin-film sensor, tribological contact
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Computer Science(all)
- Computer Science (miscellaneous)
- Engineering(all)
- Mechanical Engineering
- Mathematics(all)
- Control and Optimization
- Engineering(all)
- Industrial and Manufacturing Engineering
- Engineering(all)
- Electrical and Electronic Engineering
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In: Machines, Vol. 10, No. 10, 870, 27.09.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Degeneration Effects of Thin-Film Sensors after Critical Load Conditions of Machine Components
AU - Ottermann, Rico
AU - Steppeler, Tobias
AU - Dencker, Folke
AU - Wurz, Marc Christopher
N1 - Funding Information: The authors thank the German Research Foundation (DFG) that funded this work within the research project “Integrated sensors for intelligent large-diameter bearings” (WU 558/41-1) as part of the Priority Program 2305 “Sensor-integrating machine elements”.
PY - 2022/9/27
Y1 - 2022/9/27
N2 - In the context of intelligent components in industrial applications in the automotive, energy or construction sector, sensor monitoring is crucial for security issues and to avoid long and costly downtimes. This article discusses component-inherent thin-film sensors for this purpose, which, in contrast to conventional sensor technology, can be applied inseparably onto the component’s surface via sputtering, so that a maximum of information about the component’s condition can be generated, especially regarding deformation. This article examines whether the sensors can continue to generate reliable measurement data even after critical component loads have been applied. This extends their field of use concerning plastic deformation behavior. Therefore, any change in sensor properties is necessary for ongoing elastic strain measurements. These novel fundamentals are established for thin-film constantan strain gauges and platinum temperature sensors on steel substrates. In general, a k-factor decrease and an increase in the temperature coefficient of resistance with increasing plastic deformation could be observed until a sensor failure above 0.5% plastic deformation (constantan) occurred (1.3% for platinum). Knowing these values makes it possible to continue measuring elastic strains after critical load conditions on a machine component in terms of plastic deformation. Additionally, a method of sensor-data fusion for the clear determination of plastic deformation and temperature change is presented.
AB - In the context of intelligent components in industrial applications in the automotive, energy or construction sector, sensor monitoring is crucial for security issues and to avoid long and costly downtimes. This article discusses component-inherent thin-film sensors for this purpose, which, in contrast to conventional sensor technology, can be applied inseparably onto the component’s surface via sputtering, so that a maximum of information about the component’s condition can be generated, especially regarding deformation. This article examines whether the sensors can continue to generate reliable measurement data even after critical component loads have been applied. This extends their field of use concerning plastic deformation behavior. Therefore, any change in sensor properties is necessary for ongoing elastic strain measurements. These novel fundamentals are established for thin-film constantan strain gauges and platinum temperature sensors on steel substrates. In general, a k-factor decrease and an increase in the temperature coefficient of resistance with increasing plastic deformation could be observed until a sensor failure above 0.5% plastic deformation (constantan) occurred (1.3% for platinum). Knowing these values makes it possible to continue measuring elastic strains after critical load conditions on a machine component in terms of plastic deformation. Additionally, a method of sensor-data fusion for the clear determination of plastic deformation and temperature change is presented.
KW - bearings
KW - k-factor
KW - plastic deformation
KW - sensor data fusion
KW - sputtering
KW - strain gauge
KW - temperature coefficient of resistance
KW - temperature sensor
KW - thin-film sensor
KW - tribological contact
UR - http://www.scopus.com/inward/record.url?scp=85140926439&partnerID=8YFLogxK
U2 - 10.3390/machines10100870
DO - 10.3390/machines10100870
M3 - Article
AN - SCOPUS:85140926439
VL - 10
JO - Machines
JF - Machines
IS - 10
M1 - 870
ER -