De Coulon
Yves De Coulon, Saint-Blaise CH
Patent application number | Description | Published |
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20100116024 | THERMAL GAS SENSOR - A physical gas sensor of thermal type capable of determining the concentrations of a gas mixture even in the presence of humidity by measuring the thermal diffusivity and conductivity includes a cell with thermal conductivity whose frequency response to the gases is known, in particular in respect of humidity, delivering a signal Vm representative of the concentration of the gas. This cell is excited by a pulsed signal so that a processing can be carried out at different analysis frequencies: at low frequency and at higher frequency. The output signals from the two processing chains are combined in the circuit ( | 05-13-2010 |
20100122905 | AMPEROMETRIC IN-PIPE ELECTROCHEMICAL SENSING PROBE - A sensing probe intended to measure the content of an oxygen reducible substance in a fluid, includes: | 05-20-2010 |
Yves De Coulon, Thielle-Wavre CH
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20120036921 | AMPEROMETRIC ELECTROCHEMICAL SENSOR AND METHOD FOR MANUFACTURING SAME - An amperometric electrochemical sensor with a fixed potential used in a probe for measuring the content of an oxidation reduction substance dissolved in a liquid, in particular the chlorine content. The sensor ( | 02-16-2012 |
20120145561 | Device for Measuring at Least One Property of Water - The invention relates to a device for measuring at least one physico-chemical parameter of water, said device including a means for measuring the concentration of active chlorine in the form of hypochlorous acid HOC1 in said water. According to the invention, said means for measuring the chlorine concentration in the form of hypochlorous acid HOC1 includes first ( | 06-14-2012 |
Yves De Coulon, Wavre CH
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20130081445 | GAS SENSOR AND METHOD FOR DETERMINING A CONCENTRATION OF GAS IN A TWO-COMPONENT MIXTURE - The described sensor allows determination of the concentration of a gas in a two-component mixture at variable pressure by measuring the diffusivity and the thermal conductivity. The sensor is provided to alternately heat the membrane ( | 04-04-2013 |
20150068895 | DEVICE FOR MEASURING THE FREE CHLORIDE CONTENT OF A WATER - An amperometric sensor circuit for measuring chlorine concentration in water. The circuit includes first and second working electrodes coated with a hydrophilic membrane. A power supply and biasing circuit is configured to deliver a generally constant voltage between the first working electrode and a reference electrode and to generally deliver a constant current between the second working electrode and a counter electrode. A measurement circuit measures the current between the counter electrode and the first working electrode. A processing circuit is provided for determining the chlorine concentration based on the current measured by the measurement circuit. | 03-12-2015 |