Issues with using double-flange differential pressure for level measurement
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As a newcomer to the HaiChuan Forum and having been involved in diaphragm seal production for 2 years, I have always had a question that I couldn’t figure out. It is said that when using double flanges to measure liquid level, the larger the flange diaphragm, the higher the measurement accuracy. What exactly is the reason for this? I can understand single-sided measurement, as the diaphragm is larger, more flexible, and the chamber is also bigger. But don’t both sides cause the diaphragm to expand and contract at the same time? Why does the measurement accuracy improve?
The larger the diaphragm, the greater the displacement, meaning a larger relative change, and thus higher precision.