Main Sector of relevance\IRC classification 5. Electronics, IT and Telecommunication


5.47 Portable radar for visualization of internal structure of building constructions



Developers’ contact information

State Scientific Institution “The Institute of Applied Physics”
220072, Minsk, Akademicheskaya St., 16
Теl.: +375 (17) 284-24-39, Fax +375 (17) 284-17-94

Mikhnev Valerij Aleksandrovich
Теl.: +375 (29) 762-33-48; e-mail: vmikhnev@gmail.com

Summary

Radar is designed for visualization of internal structure of building constructions, detection of different defects (cracks, air cavities), heterogeneities (alien dielectric and metal inclusions, safes, secret compartments), evaluation of their depth and approximate geometry, and wall thickness in case of unilateral access can be evaluated as well. Radars can be used in civil engineering, emergency cases, archeology, services dealing with expertise, investigation and security services.

Description

The work of the radar is based on the ability of microwaves to penetrate into optically non-transparent mediums and partially reflect from any heterogeneity on their way. To detect hidden objects the frequency of probing signal changes in broad band, the frequency dependence of reflected signal is defined and then, using the Fourier transformation, impulse response of medium with peaks coinciding with subsurface objects is calculated.
Structurally the radar consists of two blocks: a portable computer and radar proper with an antenna system to attach. The radar and computer are connected with the standard cable. The type of computer (usual or protected pad for field application) is agreed with the client. Power supply is provided by 4 AA accumulators, a charging device is in the specified number. If necessary a network adapter can also be delivered. The specified number includes software for visualization of the internal structure of an object. Maximum depth of detecting heterogeneity in concrete – 0,5m. Accuracy of detecting of heterogeneity location in all planes – 3cm. Scanning speed – 0,1m/s. Productivity – 20 square meters per hour. Radar mass (without Notebook) – 1,7kg. Power – 4 AA accumulators. Duration of continuous work after full charging of accumulators – 6 hours.

Technology type

Technical advantages and economic benefits

The main technical advantage of the portable radar over its analogs is the ability not only to detect alien inclusions in different dielectric mediums (building constructions, upper layers of road carpet, etc.) but also differentiate among them according to the degree of contrast to the surrounding medium.

Technology differentiation and uniqueness

New technology.

Context in which technology was identified

It is used in educational and scientific and research organizations of the Republic of Belarus.

Technological keywords

Subsurface radar, imaging, quality control of building structures, inspection, identification of defects.

Development Stage

Intellectual property rights

Range of applications

Civil engineering, security systems.

Classifier Used at the EU Innovation Relay Centres

Preferable Regions

Practical experience

The technology is introduced and implemented.

Environmental impact

Type of collaboration sought

Terms and restrictions

Support provided at transfer of the technology