摘要:
A device for the gas analysis of a gas mixture includes a converter configured to convert a first gas component into a target gas component, a sensor system configured to detect the target gas component or another component of the gas mixture after the conversion by the converter, and an evaluating apparatus. The converter is further configured to change the concentration of a second gas component or to cause a conversion to a second target gas component. The sensor system is configured to determine the concentration of the second gas component or of the second target gas component. The evaluating apparatus is configured to determine a value for the aging of the converter on the basis of the concentration of the second gas component or of the second target gas component.
摘要:
A device for the gas analysis of a gas mixture includes a converter configured to convert a first gas component into a target gas component, a sensor system configured to detect the target gas component or another component of the gas mixture after the conversion by the converter, and an evaluating apparatus. The converter is further configured to change the concentration of a second gas component or to cause a conversion to a second target gas component. The sensor system is configured to determine the concentration of the second gas component or of the second target gas component. The evaluating apparatus is configured to determine a value for the aging of the converter on the basis of the concentration of the second gas component or of the second target gas component.
摘要:
A multifunctional control valve for gas measurement instruments, e.g., for respiratory gas analysis, is disclosed. In at least one embodiment, the multifunctional control valve includes a first inlet opening, an outlet opening, a main line, and a bypass line, wherein a measurement chamber is in the main line, wherein the measurement chamber is arranged downstream of a first multiway valve which can selectively connect the main line or the bypass line with the inlet opening, and wherein the measurement chamber is arranged upstream of a second multiway valve which can selectively connect the main line or the bypass line with the outlet opening.
摘要:
A method for optimizing a gas conversion rate in a respiratory gas analyzer, more particularly for nitric oxide (NO) in the respiratory gas, and an associated device are disclosed.
摘要:
A method for optimizing a gas conversion rate in a respiratory gas analyzer, more particularly for nitric oxide (NO) in the respiratory gas, and an associated device are disclosed.
摘要:
The disclosure relates to an operating method for a gas sensor, in particular a gas sensor for detecting asthma. According to said method, nitrogen monoxide or nitrogen dioxide is detected in a measuring phase and the gas sensor is heated by a heating device in a desorption phase in order to accelerate desorption. The heating process is continued until the temporal alteration of the measuring signal of the gas sensor falls below a threshold value.
摘要:
A multifunctional control valve for gas measurement instruments, e.g., for respiratory gas analysis, is disclosed. In at least one embodiment, the multifunctional control valve includes a first inlet opening, an outlet opening, a main line, and a bypass line, wherein a measurement chamber is in the main line, wherein the measurement chamber is arranged downstream of a first multiway valve which can selectively connect the main line or the bypass line with the inlet opening, and wherein the measurement chamber is arranged upstream of a second multiway valve which can selectively connect the main line or the bypass line with the outlet opening.
摘要:
The disclosure relates to an operating method for a gas sensor, in particular a gas sensor for detecting asthma. According to said method, nitrogen monoxide or nitrogen dioxide is detected in a measuring phase and the gas sensor is heated by a heating device in a desorption phase in order to accelerate desorption. The heating process is continued until the temporal alteration of the measuring signal of the gas sensor falls below a threshold value.
摘要:
An appliance is disclosed for measuring at least one gas analyte in exhaled air. In at least one embodiment, the appliance includes an inlet opening for the introduction of exhaled air (mouthpiece), at least one measuring chamber for receiving a sensor unit, and a conduit which provides a fluid connection from the opening to the measuring chamber, and wherein, depending on the gas analyte that is to be measured, a sensor unit with a suitable gas sensor can be introduced into the receiver.
摘要:
A method an apparatus uses the narrow-band measurement of the absorption of given spectral lines of a gas using laser light sources, so that the spectrally resolved measurement of individual absorption lines, and thus the selection of an individual gas component, is possible. A laser diode which is operated at a higher temperature is correspondingly varied over a certain temperature region, wherein the selected spectral line is crossed. On the basis of absorption measurements, the method and sensor deliver the gas concentration, with a high selectivity.