Presentation is loading. Please wait.

Presentation is loading. Please wait.

Innovative Sensing Systems A survey of the activities on advanced sensing systems for permanent monitoring carried out at Politecnico di Torino – Department.

Similar presentations


Presentation on theme: "Innovative Sensing Systems A survey of the activities on advanced sensing systems for permanent monitoring carried out at Politecnico di Torino – Department."— Presentation transcript:

1 Innovative Sensing Systems A survey of the activities on advanced sensing systems for permanent monitoring carried out at Politecnico di Torino – Department of Electronics M. Parvis, G. Perrone, A. Vallan Contact person: G. Perrone, Dep. of Electronics,

2 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Technologies FOS market is limited by high prices, complexity, insufficient familiarity with fibers: Plastic optical fibers very low-cost Glass fibers innovative interrogators Fiber Optic Sensors Distributed measurement systems: Integration of FOS in wireless networks Wireless low-power sensor networks Data Acquisition Architectures

3 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Fiber vs. Traditional Sensors FibermechanicalFiber vs. mechanical sensors: –Lightweight, flexibility and versatility. –Resistance to corrosion. –Reduced invasive impact given the possibility to remote the control unit. FiberelectricalFiber vs. electrical sensors: –Immunity to electromagnetic disturbances and discharges. –Impossibility to start fires or explosions. –Simplified remote operation since the same fiber can be used both for sensing and data transmission.

4 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Facilities automatic measurement system testing transducer characterization certified calibration facility. Electronic Measurement Systems optical device characterization fiber Bragg grating fabrication fiber drawing tower clean room for thin film depositions. PhotonLab

5 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Applications Civil and geotechnical engineering: Structural monitoring, landslide evolution, … Mechanics: Automation, monitoring of movable parts, valves, … Chemistry: PH measurement, detection of gases or of toxic products, … Medicine and bioengineering: Physiological parameters, muscular force, …

6 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Capabilities 10 International patents Plastic and glass fiber sensors for: Displacements Non contact distance Vibrations / accelerations Strain - pressures Chemicals (H, SO x, NO x ) Temperature Electrical Field Custom data acquisition systems Wireless network of low-cost miniaturized sensors for real-time and off-line monitoring

7 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Examples Displacement / crack monitoring Smart buttons and network of wearable sensors Vibrations Deforma tions Chemicals

8 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Examples: Displacement Sensors Displacement sensors Vibration sensor Up to 60 mm Resolution: < 1/100 mm Repeatability: < 1/20 mm

9 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Examples: Displacement Sensors Field test in Venice with the support from Fondazione TorinoWireless LOCKLOCK

10 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Examples: Deformations Low cost sensor able to measure distributed displacements with a sub-millimeter resolution based on the phase shift between transmitted and received signals along a fiber link.

11 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Examples: Deformations Variation of light polarization Distributed sensor used to measure deformations in a lab model of a bridge. Samples Output power, dB Response to five pressure stimuli Prototype of the control unit

12 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Examples: Deformations Fiber Bragg Gratings with custom interrogators Acoustic wave detection Structural monitoring

13 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Examples: Vibrations Low cost sensor based on the spectral analysis of the received reflected power to measure the amplitude of vibrations independently from the surface reflectivity. Resolution: < 1/1000 mm High frequency capabilities (current tests up to 40 kHz)

14 M. Parvis, G. Perrone, A. Vallan Dept. of Electronics - Politecnico di Torino - Italy Tel – - Example: Network of Wearable Sensors Wireless network of low-cost wearable buttons for real- time and off-line monitoring of temperature and humidity 10 cent shaped button with temperature and humidity sensor, lithium battery and 2.4 GHz radio Example of biomedical application: skin temperature and humidity monitoring during daily life


Download ppt "Innovative Sensing Systems A survey of the activities on advanced sensing systems for permanent monitoring carried out at Politecnico di Torino – Department."

Similar presentations


Ads by Google