Abstract: A measuring device, intended to be placed on the skin of a human-being or animal user, the device extending between a contact face and a far end, the device including a side wall that extends between the contact face and the far end, on the contact face, at least one aperture to collect a gas of interest emitted through the skin, the aperture being produced through the contact face; a collecting chamber that extends between the contact face and a measuring chamber; a gas sensor, placed in the measuring chamber, to measure a concentration of gas of interest flowing through the measuring chamber; a processing unit, to estimate a gas-of-interest content in the body of the user based on the measurement taken by the gas sensor; a heat source to bring the contact face to a temperature above 37° C.; and an air intake produced through the side wall to admit ambient air into the duct.

Abstract: A device for processing a signal (i) derived from a particular detector, the device including an integrator for measuring the total charge transported by an input signal (i2) feeding the integrator for a predetermined time interval. The device further includes a plurality of units for receiving detector signal (i) derived from the particle detector, reducing the background noise present in the detector signal (i), and producing the input signal (i2). The invention is applicable to various devices and appliances for measuring flow of particles such as photons.

Abstract: A device for processing a signal (i) derived from a particular detector, the device including an integrator for measuring the total charge transported by an input signal (i2) feeding the integrator for a predetermined time interval. The device further includes a plurality of units for receiving detector signal (i) derived from the particle detector, reducing the background noise present in the detector signal (i), and producing the input signal (i2). The invention is applicable to various devices and appliances for measuring flow of particles such as photons.