The company AURA a.s. is one of few world-class firms that are primary producers of equipment for industrial as well as laboratory diagnostics of vibrations. Thanks to its own research and development the firm is at the world top positions in some branches. The company was the first one to introduce a complex assessment of machine condition and this has set a new worldwide trend. Other important and completely new innovations also include a unique design of sensors enabling to measure conditions of bearings and vibrations at the same time using a single sensor. The systems manufactured by AURA a.s. have undergone long-term load tests for operation at 250 °C (482.00 °F) (the requirement of European standards for tunnels is an example of use) but apart from that they are also certified for the most demanding conditions of explosive environments or for use under water.

The basis of permanently installed systems is in their in-built autodiagnostics ensuring reliability above standard when used even in the most demanding applications.   The most important achievements of AURA a. s. include winning of an international tender called by the Ministry of Defence of the Czech Republic to supply diagnostic systems for military aircraft. A very prestigious achievement is also the fact that almost all the thermal power plants in the Czech Republic are equipped with regulating systems manufactured by AURA a.s. The diagnostic systems of AURA a.s. have also been used under difficult conditions of metro and road tunnels. The AURA a.s. diagnostics and control systems are used on all the continents of the world and it is quite interesting that our laboratory equipment is used by universities and scientific institutes.   AURA a.s. can be characterised by its ability to adapt to its clients’ needs and to prepare tailor-made solutions for customer. This ability is enhanced by its own research and development.   The company owns the following certificates: ISO 9001, IQ-net (an international quality certificate ISO 9000), ATEX (entitling to manufacture products for environments with risk of explosion), and a certificate by the Ministry of Defence entitling the firm to produce military aircraft technology.

Activities

- manufacture of active as well as passive sensors for vibration diagnostics, including use at high temperatures, in explosive environment, or under water
- manufacture of signal converters and monitors of machine operation (vibrations, temperatures, pressures etc.; analogue as well as digital)
- diagnosing bearing conditions – wear and tear of their rolling surfaces
- vibration diagnostics of rotating machines
- diagnosing fan conditions
- measuring equipment (manual, portable, stationary, laboratory)
- industrial and information control systems
- manufacture of communication adapters for converting various types of industrial protocols
- systems of remote regulation, service and communication
- services (counselling, assistance in research and development, customer solutions, servicing and repairs, calibration, designing)

Company policy
The objective of technical diagnostics is not always to monitor a device itself but especially to prevent breakdowns and resulting damage in the form of interrupted production, damage to other equipment or, in some cases, to prevent damage to human health or losses of lives. Compared to these costs, the cost of diagnostics is only a fraction of damage caused by equipment breakdowns. Reducing maintenance costs plays also an important part.

Applications

Fans to be used in industrial applications, tunnels, underground mines, cooling towers, and metro:
- assessing fan conditions
- diagnosing bearing conditions
- diagnosing vibrations
- measuring of temperatures
- measuring and assessment of fan unstable pressure conditions
- remote regulation and control
- long-term resistance to thermal loads of up to 250 °C (482.00°F)
- possibility to be equipped with parts for explosive environment

Hydraulic power plants:
- diagnosing bearing conditions
- diagnosing vibrations
- measuring of temperatures
- measuring and assessment of turbine atypical pressure conditions
- remote regulation and control

Compressors and compressor plants:
- assessment of compressor conditions
- diagnosing bearing conditions
- diagnosing vibrations
- measuring of temperatures and pressures
- measuring and assessment of compressor unstable pressure conditions
- PLC and operator positions
- remote regulation and control
- long-term resistance to thermal loads of up to 250 °C (482.00°F)
- possibility to be equipped with parts for explosive environment

Gas and steam turbines:
- assessment of turbine conditions
- diagnosing bearing conditions
- diagnosing vibrations
- measuring of temperatures and pressures
- measuring and assessment of turbine unstable pressure conditions
- PLC and operator positions
- remote regulation and control
- possibility to be equipped with parts for explosive environment

Centrifuges:
- diagnosing bearing conditions
- diagnosing vibrations
- control systems
- possibility to be equipped with parts for explosive environment
- remote regulation and control

Electrostatic precipitators for power plants, heating plants, or incinerators:
- control systems
- diagnostic systems for analysing composition of combustion products, temperatures, and pressures
- operator positions
- remote regulation and control

Vibrating conveyors:
- setting up optimal values of transport vibrations
- monitoring the movements of conveyed material (without breaking the conveyor wall)
- control systems
- operator positions
- remote regulation and control

Compressed-air haulage:
- monitoring the movements of conveyed material (without breaking the conveyor wall)
- control systems
- operator positions
- remote regulation and control

Vibration shaping:
- measuring and optimization of vibration frequency
- diagnosing bearing conditions
- diagnosing vibrations
- control systems
- PLC and operator positions
- remote regulation and control

Glassmaking shaping machines:
- measuring and optimization of vibration frequency of ball shaping
- diagnosing bearing conditions
- diagnosing vibrations
- control systems
- PLC and operator positions
- remote regulation and control

Car industry:
- measuring equipment for diagnosing damaged valve plates
- measuring the quality of finish, wear and tear, and alignment of gear wheels and gear boxes
- testing equipment for measuring motor vibrations

Aviation:
- diagnosing aircraft jet engines
- diagnosing bearing conditions
- diagnosing vibrations
- galvanic separation

Strip mines:
- measuring and regulating the adjustment of hoisting machine arms

Underground machines:
- complex diagnostics of head frames
- ventilation and fans

Petroleum mining:
- galvanically separated sensors for measuring vibrations in explosive environments
- pump control technology (including sensors) for automatic operator-free petroleum pumping plants
- diagnosing bearing conditions
- diagnosing vibrations
- PLC and operator positions
- remote regulation and control

Metallurgy and heavy industry:
- control systems for dust removal
- control systems for plants, including individual diagnostic elements
- PLC and operator positions
- remote regulation and control

Chemical industry:
- centrifuges
- control systems for plants, including individual diagnostic elements
- PLC and operator positions
- remote regulation and control

Pharmaceutical industry:
- control systems for plants and lines, their interconnections, mutual communication
- centrifuges
- PLC and operator positions
- remote regulation and control

Measuring equipment:
- manual for measuring vibrations and diagnosing bearing condition with data acquisition and administration
- ‘recording reproducer’
- mobile centres for measuring and diagnosing vibrations, bearing conditions, temperatures, pressures, unstable conditions, and other operating parameters
- stationary test-rooms and equipment for measuring and diagnosing vibrations, bearing conditions, temperatures, pressures, unstable conditions, and other operating parameters
- precise laboratory equipment, including sensors for measuring, calibrating, amplifiers, and electric charge generators
- interconnection and communication of test-room individual measuring devices
- test-room operator positions
- remote regulation and control

Research projects:
- vibration diagnostics
- diagnosing bearings
- unstable conditions of fans, turbines, and compressors
- wind tunnels
- measuring playing field areas
- measuring road surfaces
- diagnosing special machine tools

Modular systems
The latest generation of monitors manufactured by AURA a.s. is of a modular character. Each of modules has its own processor, and 2 input and 2 output channels. The modules are designed for connecting to a DIN bar and they are interconnected with a CAN standard bus bar. They can be used as diagnostic, measuring as well as control systems where a signal from sensors of any physical quantity can be led to their inputs. A necessary number of modules are interconnected according to the required function (measuring, diagnostic or control) and the number of input signals. A great advantage of this system can be seen in the fact that it is not only very variable but also that it creates distributed systems and transmits data along a communication bus bar into networks (Internet, GSM etc.). Moreover, the modules are of a ‘Plug and Play’ design, so in case of a faulty module, it can be replaced with a new one and this new module can record itself original settings of the old module from the data saved in the other modules. With this system it is no longer necessary to lead tens of cables from each sensor or regulator to an operator position but only one communication link (cable or wireless) to a set of modules is sufficient. The fact that each module processor itself processes each signal means that the regulator central processor, a PLC, or an operator computer is not overloaded, so it actually works in real time then.

Industrial control systems
Control systems by AURA a.s. are designed and custom-made so that the most economically effective customer solution could be found. Our ability to develop program products for information management and processing in industry and manufacture is an important factor. We perceive our future as well as the future of our customers in the connection of measuring and information technologies.

Remote regulation and control
Change to operator-free systems is a worldwide trend. Systems manufactured by AURA a.s. make it possible to transfer a monitor signal to an operator position, possibly via a PLC, and further to defined users from there. Each of the users can have various rights set up, what processor data will be displayed to them. The transfer can be done via the Internet, GSM or local networks using a telephone line, an optical cable, or a wireless connection. Displaying of necessary data is done using the HTML or SW CITEC protocols. The communication path is two-directional. It means that remote adjustments, system alterations, or regulation are possible. Other advantages can also be seen in reducing operator costs, the necessary information is available at remote positions (a superior body, a servicing organisation, a technology supplier, remote central operator positions etc.), reduced servicing and maintenance costs because each worker knows what to do prior a maintenance action, a number of situations can be solved without servicing a device on the spot, precise data on the process are available in case of a breakdown or a complaint etc.

Special features
Ultrasound emission sensor UES 600 for high-precision rangefinders, thickness gauges, anemometers, alarm systems, level gauges, and material passage gauges etc.
Testing equipment simulating human head for testing helmets, children swings and for testing playing field surfaces.

Contacts

Aura a. s.
5. května 118
399 01 Milevsko
Czech Republic

phone: 382 521 924
fax: 382 524 224

email: sales@auranet.cz
www.auranet.cz

Aura a. s.
Výzkumné a vývojové centrum Praha

(Research and Development Centre, Prague)
Za Mototechnou 971
155 00 Praha 5
Czech Republic

phone / fax: 251 614 794

email:
www.auranet.cz