Photono Oy

Altum Technologies Oy

Helsingin Yliopisto

Revenio Research Oy

Perfat Technologies Oy

Ari Salmi

Edward Haeggström

Heikki Juhani Nieminen

Jouko Yliruusi

Antti Kontiola

Timo Rauhala

Petro Moilanen

Edward Hæggström

Edward Häggström

Kasper Peterzéns

Petri Jukka Myllymäki

Ivan Kassamakov

Kai Falck

Arto Klami

Kalle Hanhijärvi

Risto Montonen

Fabio Valoppi

Tor Paulin

Jyrki Heinämäki

Ivo Laidmäe

Petri MYLLYMÄKI

Alejandro GARCÍA PÉREZ

Disclosed is a method for producing oleogels by sonicating a mixture including an oleogelator component and an oil component with ultrasound including superpositioned ultrasound waves while cooling the mixture from a temperature wherein the mixture is in molten state to a temperature wherein the oleogelator component of the mixture is at least partially in solid state. The method produces oleogels of improved stability.

Method to produce oleogels

A system for detecting a wave occurring in/on a membrane includes a source for directing an excitation signal obliquely to the membrane and a receiver for measuring interference between a first part of the excitation signal reflected off a front surface of the membrane and a second part of the excitation signal reflected off a rear surface of the membrane. The system includes a processing device for detecting the wave based on a change in the measured interference. The detection of the wave is based on changes caused by the wave in the optical length of a V-shaped part of a propagation path of the second part of the excitation signal, where the V-shaped part of the propagation path is inside the membrane.

System and method for detecting a wave occurring in/on a membrane

Methods and systems for cleaning devices holding fluid which use a system such as a transducer assembly including at least one pair of protrusions acting as point-like pressure sources or at least one substantially circular protrusion acting as a substantially circular point-like pressure source, coupled to an outer surface of the device to be cleaned.

Method and system for cleaning a device holding fluid

Disclosed is systems and methods for cleaning devices holding fluid such as heat exchanges. The cleaning is performed by using a system such as a transducer assembly including a mechanical wave generator and a waveguide including a cavity. The system is capable of operating at its fundamental resonance frequency even when connected to an outer surface of the device to be cleaned.

System and a method for cleaning a device

An intraocular pressure measurement arrangement is disclosed for measuring pressure of an eye of a patient. The arrangement can include at least one source for producing mechanical waves of several frequencies from a distance to the eye of the patient to generate at least one surface wave to the eye, a detector for detecting at least one surface wave from a distance from the eye to extract surface wave information, and a device for determining pressure information of the eye based on the surface wave information.

Method and arrangement for eye pressure measurements

Disclosed are methods for cleaning of devices, such as heat exchangers, in particular to methods wherein machine learning systems, such as trained neural networks are used for indicating the fouling status the during the cleaning processes.

Method for cleaning of a device

The present invention relates to systems and methods for cleaning of devices, such as heat exchangers. According to the invention, controlled cavitation is created at predetermined positions within a device. The cavitation is done by mechanical waves, such as ultrasound waves, generated by transducers, wherein the waves are based on output of time-reversal wave form analysis of the device structures.

System and a method for cleaning of a device

An intraocular pressure measurement arrangement is disclosed for measuring pressure of an eye of a patient. The arrangement can detect at least one of acoustic reflectivity, optical reflectivity, optical path difference, positioning of intraocular pressure measurement arrangement with respect to the eye, orientation of intraocular pressure measurement arrangement with respect to the eye, shape of cornea and corneal thickness. At least one source can produce acoustic, nonlinear acoustic, mechanical or a nonlinear mechanical wave from a distance, coupling to the eye to generate at least one surface wave. Upon triggering data acquisition, at least one surface wave from a distance from the eye can be detected to extract surface wave information with pressure information of the eye being based on the surface wave information.

Method and arrangement for eye measurements

Growing community of inventors

Helsinki, Finland

Ari Salmi