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Dispositivo para generar ondas mecánicas en materiales sólidos

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TORO20160208001
Publicado:
04/05/2016
Caducidad:
04/05/2017
Resumen:
Un equipo de investigadores rumanos ha desarrollado un dispositivo para generar ondas mecánicas no destructivas en materiales sólidos. También pone a disposición la tecnología de fabricación. Este dispositivo se emplea en ciencia de materiales, control no destructivo de materiales, en materiales defectuosos y en medición no destructiva del espesor de estructuras y elementos de diferentes materiales (especialmente materiales no metálicos de estructura heterogénea, composites, etc.). El equipo de investigación busca socios industriales, académicos e investigadores interesados en continuar con el desarrollo, transferir la tecnología y establecer acuerdos de investigación, cooperación técnica y servicios.

Details

Tittle:
Device for generating mechanical waves in solid materials
Summary:
A team of Romanian researchers has developed a device for generating non-distructive mechanical waves in solid materials.
The corresponding manufacturing technology is also available.
Industrial, academic and/or research partners are sought for further development and technological transfer, on the basis of research and technical cooperation agreements. The Romanian team from the institute is also offering services agreement.
Description:
The device for generating mechanical waves in solid materials without destroying the material through the generation of mechanical waves in materials represents the result of the research and sustained work of a Romanian research team.
Until now, there have not been developed any other similar solutions.
The non-distructive device for generating mechanical waves in solid materials is intended for use in applications related to materials´ science, non-destructive materials control, defective materials, measurement of the non-destructive thickness of structures and elements of different materials (especially non-metallic with inhomogeneous structure, composites, etc.), by generating mechanical waves in materials, so the partner sought should be active in one of these fields, whether they are industrial partners, or if they are universities or institutes.
The device for generating mechanical waves in solid materials consists of:
- A sandwich-type piezoelectric transmitter transducer that consists of a piezoceramic disk and a metal cylinder type attenuator; the piezoelectric transducer converts electrical signals into mechanical waves that propagate through the studied material, which may be raised by a sensor located in different positions on its surface;
- A generator card on which there was installed an electronic circuit for generating pulses of high voltage, controlled by low voltage pulses; the card is powered by an adjustable stabilized source of high voltage, a low voltage stabilized source, which is protected by a radiofrequency filter for screening device and protection of the stabilized source by stray signals generated at the production of high voltage pulses by the high voltage chopper circuit, controlled from the exterior at the entry of the low voltage pulses;
- A cylindrical metal housing, aimed for protection;
- 2 metal caps, out of which one is attached both to a piezoceramic disk and to an output connector that provides connections to power and ground conductors.
The novelty that this device brings is that it generates high frequency mechanical waves in particular non-metallic materials with heterogeneous structure, composites, etc. The device operates at a maximum operating frequency of 100 kHz, providing increased penetration depth of the mechanical waves in the studied material and avoiding their relaxation in inhomogeneous structure.
As the applications of the device for generating mechanical waves in solid materials are mainly in the materials science, non-destructive control and material defects, non-destructive thickness measurement of structures and elements of various materials, the Romanian R-Y-D institute is looking for foreign industry, academic, and/or research organisations interested in technology transfer or for research cooperation agreements. The Romanian R-Y-D institute is also offering services agreement.
Advantages and Innovations:
The device:
- is robust and useful for non-destructive testing of non-metallic materials, porous, etc.;
- generates high accuracy voltage pulses, which are converted into mechanical waves that are transmitted in the solid material;
- allows easy adjustment of the pulse frequency applied at the entrance in the solid material and high voltage pulse amplitude at its exit, so as to achieve an electro acoustic optimum efficiency. The mechanical waves generated in the studied material are function of the parameters that are initially set, such as: material type (non-metallic, composite), structure and composition, coefficient of attenuation and material thickness.
.
Stage of Development:
Available for demonstration
IPs:
Patent(s) applied for but not yet granted,Copyright
CommeR Statunts Regarding IPR Status:
Patent applied for at the Romanian State Office for Inventions and Trademarks (IP rights on national level - Romania).

Partner sought

Type and Role of Partner Sought:
The type of the partner sought: industry, academic and/or research organisation. These partners should be active in the field of materials´ science, non-destructive materials control, defective materials, measurement of the non-destructive thickness of structures.
The task to be performed by the industrial partner sought: further development in joint cooperation with academia and the research team as well as technological transfer, with specific technological services received from the Romanian research team.
The task to be performed by the academic and/or research organization: further development of the device, together with the Romanian research team and industrial partner, within the research cooperation agreement.

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English

Keywords

Technology Keywords:
02006002 Construction methods and equipment
01002003 Electronic engineering
05003001 Ingeniería acústica y vibracional
02006001 Materials, components and systems for construction
09001001 Tecnología acústica relacionada con la realización de medidas