Fogale Nanotech

Nanotec Solution

Hamilton Bonaduz Ag

Fogale Sensors

Frédéric Ossart

Didier Roziere

Christian Neel

Geoffrey Esteban

Bruno Luong

Eric Legros

Charles Ghommidh

Jérôme Porque

A method for capacitive detection of nearby objects that may be located in the environment of an equipment provided with a capacitive detection device including a detection step, called discriminative detection step, including the following operations:

Method and device for discriminatory capacitive detection, and apparatus provided with such a device

A robot includes a body on which is mounted a functional head also including a capacitive detector, including:

Robot equipped with capacitive detection

Robot equipped with capacitive detection means and walls referenced to a guard potential

A device for detecting an object with respect to a detection surface including at least one measurement electrode and at least one guard electrode separated by a distance (D) that is elastically modifiable locally by a load exerted by the object on the detection surface; and structure for electrical polarization of the electrodes (V, E) arranged in order to: (i) apply to the measurement and guard electrodes one and the same first alternating electrical potential (V) so as to measure a first signal relating to an electrode-object capacitance (C); and (ii) apply between the measurement and guard electrodes an alternating electrical potential difference (V), so as to measure a second electrical signal relating to an electrode-guard capacitance (C). A detection method utilizing the present detection device is also provided.

Device and method for detecting the approach and/or contact, and the pressure of an object in relation to a detection surface

The invention relates to a robot including capacitive detection electrodes, at least one means of electrical polarization for polarizing the measurement electrodes at a first alternating electrical potential different from a general ground potential (MG), at a frequency, called working frequency. The robot is characterized in that, for at least one sub-part, called fitted-out the outer wall of which is at least partially non-electrically conductive, said at least one polarization means is also arranged in order to electrically guard the electrical items of said fitted-out sub-part at an alternating electrical potential (V), called guard potential, identical or substantially identical to said first potential, at said working frequency.

Robot equipped with capacitive detection means and item(s) referenced to a guard potential

A detection device including: Also provided is a detection method utilizing such a detection device.

Device and method for detecting the approach and/or contact and pressure of an object in relation to a detection surface

A single-use bioreactor or container including an enclosure provided for containing a biological medium, and at least one device for making at least one impedance measurement in a physical, physico-chemical and/or biological process in this medium. The sensing device is fixed through a wall of the enclosure in such a way as to be an integral part thereof and includes a detection part in direct contact with an inside of the bioreactor or container and a connection part extending towards an outside of the enclosure.

Single-use biomass sensing device, method for producing this device and single-use bioreactor incorporating this sensor

A process for on-line and in situ counting of cells in a biological culture medium, including a plurality of steps of measuring the capacitance of the medium or a plurality of steps of measuring the conductance of the medium, at distinct frequencies varying within a predetermined range of measurement frequencies. The process includes an extraction of information on the variation of permittivity due to the &#x3b2;-dispersion in the medium, from the capacitance measurements, and processing of the variation of this information on the variation of permittivity as a function of the frequency, in order to provide information regarding the counting of cells in the medium.

Process and system for on-line and in situ counting of cells in a biological culture medium

A device for capacitive measurement by a floating bridge, including: a sensor module including at least one measuring electrode and at least one guard electrode arranged close to a target connected to a general earth, at least one integrated circuit for capacitive measurement, provided with a guard to which the guard electrode is connected, having an input connected to the measuring electrode, a guard connected to the reference earth of the integrated circuit, an excitation output connected to the general earth, a measurement output, and structure for supplying the integrated circuit for capacitive measurement in floating mode.

Device and method for capacitive measurement by a floating bridge

Method for biomass determination in a medium, in particular a medium containing biological cells suspended in a conductive fluid, the biomass concentration (X) being obtained from a difference between a first capacitance signal (C') of the medium, measured at a first frequency, and a second capacitance signal (C&#x2032;) of the medium, measured at a second frequency. The method includes a separate correction of each of the measured signals, based at least on one correction level, the first correction level including a correction of the signals measured in accordance with a model dependent on the conductance of the medium at the first and second frequencies. The invention is useful in biomass measurement systems.

Method and device for biomass determination in a medium, in particular a medium containing biological cells, and measurement apparatus implementing same

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Langlade, France

Frédéric Ossart