Patent ID: 8596109

Claim:
A device for measuring the concentrations of gasses in a gas sample, the device comprising: at least one modulatable magnetic flux source providing an air gap or air gaps to which a gas sample can be fed; at least one controllable power source for generating current and voltage signals, the at least one controllable power source being coupled with the at least one modulatable magnetic flux source to generate a modulatable magnetic flux within the air gap or air gaps; at least two measuring points arranged at least partly within the air gap or air gaps, each of the measuring points having an electrically controllable, temperature-dependent heating structure; a variable power source coupled with each of the measuring points to heat the corresponding heating structure to a working temperature; and a measuring circuit coupled with each of the measuring points, each measuring circuit measuring heat conduction signals generated by the corresponding heating structure wherein the concentrations of gases, which are contained in the gas sample, is derived from the measured heat conduction signals, the measuring circuits being coordinately controlled for measurement in parallel using establishing a different set of operating parameters at each of the measuring points, wherein: each temperature-dependent heating structure has an electrically controllable heating means and a heat conduction-measuring unit; at least one of the measuring points is formed by a measuring chip with a membrane; and the heating means is arranged or designed to heat the membrane to a desired temperature.