Precise measurement technology is a prerequisite for reliable process and product engineering processes. PROvendis offers attractive technologies from the fields of physics, metrology and control engineering for licensing, to purchase or for development cooperation.
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3D ambisonic microphone
Home theater, gaming and VR applications increasingly rely on three-dimensional surround sound, however, low and very low tones in particular are inadequately reproduced.
Retrofit polarization-maintaining in optical fibers (PM)
The invention of the University of Bonn relates to the development of a method to retrofit polarization- maintaining (PM) optical fibers in a way, that a routinated achievement of polarization to a degree better than 10-5 in extinction ratio takes place.
The invention consists of a glass cell featuring an ultra-low birefringence (around 10–8) with an outstanding optical access due to its compact dodecagonal shape.
Scientists of the Rheinische Friedrich Wilhelms University of Bonn and the Max Planck Gesellschaft developed a modular sensor system for online detection of Triacetontriperoxide (TATP) in gas phase. The detection took place in open air flow.
Dynamic systems often use a two-position controller and a simple sensor that only indicates whether a threshold is exceeded or not.
Antireflective integrated optical waveguide
In transitions between dielectric optical waveguides of different thickness, it comes through modal mismatch usually to radiation losses and optical backscatter.
Due to the steadily increasing number of electrical and electronic devices in motor vehicles, there is an ever-increasing disturbance on the supply lines. In particular the power electronics generate unwanted interference signals.
On-Board PSS Monitoring
The vehicle electrical system has become more and more complex over the years. Thus, the error probability increases, but an accurate fault identification and isolation becomes more and more difficult.
Open FET Sensor
The Open FET sensor is a field-effect-based sensor in which the gate electrode is connected only to the signal to be measured and not as usual to other electronic components.
WiMDaD Wire Mesh Damage Detection
Composite materials are nowadays used in many technical fields. Blades of wind power plants or aircraft parts, for example, are made out of these materials.
Tailored to the current practical requirements, the FoBt Sensor has been developed by the Institute of Nanotechnologies and Optical Technologies (iNano) at the Niederrhein University of Applied Science.
The vibration sensor works with two optical fiber sensors with Bragg gratings, in combination with a bending beam and a broadband light source.
Lasers as sources for coherent and intense light are used in many high-tech applications and medical devices. Generally, the generation of Laser-light is characterized by a significant level of optical and electrical energy input and low efficiency.
PLL frequency acquisition
The new and ASIC available PLL circuit of the University of Paderborn can be used in communications or control and measurement technology, especially where a permanent slow sine signal is used e.g. Bang-bang PLL, Hogge PLL, Baud rate CDR, Optical transceivers circuits.
Solar energy is generated from solar panels or photovoltaic systems in solar farms or on house roofs. An invention by the University of Siegen based on a dye-sensitized solar cell (DSSC) now makes it possible to manufacture affordable thin-film solar cells that can be applied to any surface like paint.
Quantum Dot Arrays
Nanostructures are suitable for the fabrication of optoelectronic devices, but their fabrication is costly. Their utility, however, is immense: mode profiles can be created in a direct way, for example, to "attract" lasers or to adjust densities for single quantum dot applications such as single photon sources.
Photoacoustic gas sensor
Gas sensors are used for the detection of gaseous substances. Resistive measurement methods are often used, but their signal values often exhibit drift due to aging or lose selectivity. A new type of photoacoustic gas sensor (PAS) from the Technical University of Dortmund is different: it detects target gases very precisely and selectively.
Laser absorption spectroscopy
The new method from TU Dotmund uses laser absorption spectroscopy to monitor air quality in order to measure trace gases present, such as methane or CO2. The improved intra-cavity absorption spectroscopy allows the application in measurement technology, industrial process monitoring as well as safety engineering.
Optical Strain Gauge
The novel and all-optical strain measurement method is highly accurate and cost-effective. The strain is determined by means of an optical fiber-based purely optical method and thus also enables use in harsh application fields, such as explosion-proof areas or where disturbing pulsating magnetic fields interfere with conventional strain measurement sensors.
Diamond Schottky LED
LEDs are used today in a wide variety of applications, including lighting, data transmission, and biological processes. However, the commonly used LED materials are unsuitable for many applications. By using doped diamond, these LEDs can be designed specifically for high temperatures or pressures and especially for applications with special requirements, e.g. in optical metrology.
Substitute for LIDAR sensors
Optical components like photodiodes have a variety of uses in sensors and telecommunications technology. Even with time-of-flight sensors, the light reflected by objects has to be converted into electrical signals in order to compute the distance or speed of said objects.
Many optical systems, devices and sensors use the principle of interference - an essential factor in the development and optimization of thin-film devices.
Digital Power Factor Correction
By using this new digital power factor correction, the electromagnetic interference in power electronic systems such as battery chargers, plug-in power supplies, computer power supplies or e-bike chargers can be significantly reduced.
The new method for microwave thermography uses a commercially available HD optical camera and an indicator plate to convert the microwaves into a high-resolution, digital field distribution. The developed indicator plate allows microwave thermography between 1 GHz and 300 GHz.
Measure the smallest of currents of CMOS chips
Lab-on a chip applications often need to be able to measure the smallest currents on CMOS chips. Thanks to a new measurement circuit, an offset and 1/f noise compensated current-to-digital conversion can be integrated directly on the chip and thus a current measurement can be realized cost-efficiently over a very large measurement range (fA - µA).
Production process for a highly sensitive biosensor made from a crossed nanowire-structure field-effect transistor. The cost effective CMOS compatible production process allows for e.g. biosignal monitoring of molecules like c-reactive protein (CRP), cardiac troponin (cTnI), electrogenic cells, or peptides such as amyloid-beta.
Lock-In amplifiers are firmly anchored in everyday research. They offer excellent noise suppression for repeating signals. The degree of suppression, however, depends critically on the low-pass filter at the end of the signal processing chain.
Window for high temperatures
For the monitoring of highly complex processes in closed reaction vessels, it would often be desirable to be able to observe the process and monitor it by means of optical measuring systems.
Isokinetic aerosol sampling is currently only designed and used in very narrow speed ranges. However, known diffusers are only permanently adjustable and designed for a specific flow velocity.
Synthetic Image Data
Almost all car manufacturers are currently developing camera-based autonomous or semi-autonomous vehicles.
On the trail of plasma
Plasmas are used in a wide range of technical applications, including semiconductor technology. Plasma etching and plasma-induced material deposition are used to remove functional layers in a structured manner or to selectively generate surface hardening, cleaning and activation on the target surface.
The electrical power grid is undergoing a major transformation. Increasing numbers of decentralized feeders have been added in recent years and, in the future, there will be a large number of charging stations for electric vehicles that temporarily draw a large amount of electrical power from the power grid.