NDLI: Air-Coupled Piezoelectric Transducers with Active Polypropylene Foam Matching Layers

Content Provider	PubMed Central
Author	Gómez, Álvarez-arenas Tomás E.
Copyright Year	2013
Abstract	This work presents the design, construction and characterization of air-coupled piezoelectric transducers using 1–3 connectivity piezocomposite disks with a stack of matching layers being the outer one an active quarter wavelength layer made of polypropylene foam ferroelectret film. This kind of material has shown a stable piezoelectric response together with a very low acoustic impedance (<0.1 MRayl). These features make them a suitable candidate for the dual use or function proposed here: impedance matching layer and active material for air-coupled transduction. The transducer centre frequency is determined by the λ/4 resonance of the polypropylene foam ferroelectret film (0.35 MHz), then, the rest of the transducer components (piezocomposite disk and passive intermediate matching layers) are all tuned to this frequency. The transducer has been tested in several working modes including pulse-echo and pitch-catch as well as wide and narrow band excitation. The performance of the proposed novel transducer is compared with that of a conventional air-coupled transducers operating in a similar frequency range.
Related Links	http://dx.doi.org/10.3390/s130505996
Ending Page	6013
Page Count	18
Starting Page	5996
File Format	PDF
ISSN	14248220
e-ISSN	14248220
Journal	Sensors (Basel, Switzerland)
Issue Number	5
Volume Number	13
Language	English
Publisher	Molecular Diversity Preservation International (MDPI)
Publisher Date	2013-05-01
Access Restriction	Open
Rights Holder	Molecular Diversity Preservation International (MDPI)
Subject Keyword	Electrical and Electronic Engineering Analytical Chemistry Atomic and Molecular Physics, and Optics Biochemistry Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Medicine Atomic and Molecular Physics, and Optics Instrumentation Analytical Chemistry Biochemistry Information Systems Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Air-Coupled Piezoelectric Transducers with Active Polypropylene Foam Matching Layers

Piezoelectric Sensor to Measure Soft and Hard Stiffness with High Sensitivity for Ultrasonic Transducers

Embedded Ultrasonic Transducers for Active and Passive Concrete Monitoring

MEMS Microphone Array Sensor for Air-Coupled Impact-Echo

Design of a Broadband Electrical Impedance Matching Network for Piezoelectric Ultrasound Transducers Based on a Genetic Algorithm

Light-Intensity-Induced Characterization of Elastic Constants and d33 Piezoelectric Coefficient of PLZT Single Fiber Based Transducers

Numerical Analysis of Piezoelectric Active Repair in the Presence of Frictional Contact Conditions

A Micro-Fabricated Force Sensor Using an All Thin Film Piezoelectric Active Sensor

High-Temperature Piezoelectric Sensing

Air-Coupled Piezoelectric Transducers with Active Polypropylene Foam Matching Layers

Similar Documents

Air-Coupled Piezoelectric Transducers with Active Polypropylene Foam Matching Layers

Piezoelectric Sensor to Measure Soft and Hard Stiffness with High Sensitivity for Ultrasonic Transducers

Embedded Ultrasonic Transducers for Active and Passive Concrete Monitoring

MEMS Microphone Array Sensor for Air-Coupled Impact-Echo

Design of a Broadband Electrical Impedance Matching Network for Piezoelectric Ultrasound Transducers Based on a Genetic Algorithm

Light-Intensity-Induced Characterization of Elastic Constants and d33 Piezoelectric Coefficient of PLZT Single Fiber Based Transducers

Numerical Analysis of Piezoelectric Active Repair in the Presence of Frictional Contact Conditions

A Micro-Fabricated Force Sensor Using an All Thin Film Piezoelectric Active Sensor

High-Temperature Piezoelectric Sensing

Air-Coupled Piezoelectric Transducers with Active Polypropylene Foam Matching Layers