Different instruments will have corresponding detection methods. When the electronic stethoscope is placed and the upper and lower molds are closed, a sealed detection space will be formed. The mold can also protect the electronic stethoscope from damage during detection. At this time, the fixture connected to the mold is started and injected with a certain volume of gas through the gas source to automatically cut off the air supply and enter a stable pressure state after detecting the air pressure. At this time, the air pressure inside the mold will be monitored to determine the sealing performance based on the leakage rate.
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