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.
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
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.
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.
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.
Smart Images

Figure CN115950944B_ABST