Measurement system for determining gas concentration

By separating and standardizing the thermal voltage signal components, and combining humidity, temperature and pressure compensation, high-precision measurement of oxygen and other gas concentrations in respiratory gases is achieved in a single system. This solves the cost and synchronization problems of existing multi-sensor systems and is suitable for intensive care, anesthesia and emergency medicine.

CN115950944BActive Publication Date: 2026-06-30DRAGERWERK AG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DRAGERWERK AG
Filing Date
2022-09-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the prior art, measurement systems used to detect the concentration of oxygen and other gases in breathing gases typically require multiple independent sensors, resulting in high costs and difficulty in synchronizing or accurately mapping the concentration changes of the gas composition.

Method used

A measurement system and method are employed to simultaneously measure the concentrations of oxygen and other gases, including humidity, temperature, and pressure compensation, by using a device with measuring elements, electromagnets, coils, a calculation and control unit, and by separating and standardizing the thermal voltage signal components, thereby improving measurement accuracy.

Benefits of technology

It enables simultaneous, high-precision measurement of oxygen and other gas concentrations in a single system, reducing costs and improving the synchronization and accuracy of measurements, making it suitable for clinical environments such as intensive care, anesthesia, and emergency medicine.

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Abstract

The present invention relates to a measurement system (100) for determining gas concentration, the measurement system being used to determine the gas concentration in a gas mixture of a gas sample by using the thermal conductivity and the paramagnetic effect of thermal conductivity in a gas mixture, in the presence of a dataset (203).
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