The measuring diaphragm in the 1151 transmitter is a metal flat diaphragm, but why is its behavior linear?
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The measuring diaphragm in the 1151 transmitter is a metal flat diaphragm, but why is its behavior linear?
I don’t understand your question. The shape of the diaphragm doesn’t seem to have any inherent connection with pressure transmission or the response of the sensing element to pressure changes. For pressure sensing elements, the raw signal still needs to pass through amplification and modulation circuits before it can be transformed into a linear pressure response signal. It is best to consult the technical staff of the manufacturer who produces the 1151 pressure transmitter regarding such issues.
The measuring diaphragms in the 1151 transmitter are all metal flat diaphragms. Flat diaphragms have a simple shape and are easy to manufacture, but their pressure and displacement characteristics are nonlinear; they become linear only when the displacement of the diaphragm is much smaller than its thickness； When the diaphragm is installed, it is stretched tightly to achieve an initial tension; within a certain range, both pressure and displacement are linear as well.
The measuring diaphragm of the 1151 transmitter should be corrugated; a flat diaphragm will result in very small displacements, making it difficult to make accurate measurements.
:Lol, I’m a transmitter manufacturer