Development of a digital oxygen inhalator verification device
Oxygen inhaler is one of the most commonly used medical devices in medical treatment.The safety and reliability of the device and the accuracy of oxygen supply indicators directly affect the life safety of patients.At present,most metrological institutions still use mechanical instruments for manual reading when calibrating the medical device.This traditional verification method has high labor intensity and workload,low efficiency,and is difficult to meet the needs of mass measurement.To this end,a digital calibration device for oxygen inhaler is developed.The hardware uses STM32 based embedded inte-grated circuit,the software uses uC/OS-Ⅲ real-time operating system,and the Emwin graphical inter-face is used for UI interface design.It realizes the automatic control output of pressure standard value,digital display of standard flow and pressure data,and conforms to the verification specification of oxygen inhaler,which effectively improves the verification efficiency and has high application value.
digitaloxygen inhalatorverification deviceautomatic control
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