Commissariat a L'energie Atomique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Alain Bourgerette

Yves Fouillet

Gilles Marchand

Eric Barat

Olivier Fuchs

Jean-Christophe Trama

A flowmeter includes a first chamber and a second chamber connected through a channel. The first chamber is provided with a first deformable membrane and with first and second gauges. The second chamber is provided with a second deformable membrane and with third and fourth gauges. The four gauges form a Wheatstone bridge.

Microflowmeter and method for making same

The multichannel potentiostat comprises a reference terminal, a counter-electrode terminal, and at least two working terminals, respectively designed to be connected to a reference electrode, a counter-electrode and at least two working electrodes of an electrochemical cell. The potentiostat comprises first and second regulating circuits to apply a setpoint voltage respectively between the first and second working terminals and the reference terminal. The potentiostat comprises a control circuit of the counter-electrode voltage applied to the counter-electrode terminal. The control circuit comprises a first input terminal connected to a predefined potential and a second input terminal to which a regulating voltage representative of at least one of the voltages of the working terminals is applied.

Multichannel potentiostat having an adjustable counter-electrode potential

System and method for validating the signal for detecting a measuring chain with a wide band of nuclear radiations. This system for validating the signal of a measuring chain of nuclear radiations (1), includes a detector (10) able to deliver a wide spectral band signal to at least one processing unit (12, 14) and is characterized in that the system (30) includes means (32) for copying the detection system so as to deliver a copy of this signal to a calculation unit (34), the calculation unit (34) being able to calculate measuring spectral information representative of the spectrum of the detection signal and compare this information with reference spectral information. The system and method are applicable to chains for counting in fluctuations or pluses.

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Villard Bonnot, France

Alain Bourgerette