The feature of the corrugated metal culvert pipe is that it can produce the corresponding displacement under the pressure, axial force, lateral force or bending moment. Besides it also has characteristics of the pressure resistance, vacuum sealing, corrosion resistance, temperature stability and long service life. So the metal corrugated pipe can be applied in many fields.

1) It can be applied as the elastic sensitive element of the instrument.

It has high requirement on the elastic characteristics of corrugated pipe. Corrugated pipe used as the elastic sensitive element is basically to turn pressure into the displacement output or turn pressure into concentration output. Turning the pressure into concentration output refer to the corrugated pipes has little transformation or with no displacement, so the stress is less than the output displacement of corrugated pipe stress on the ripples. Therefore, the force balance type corrugated pipes as elastic sensitive element of instrument will be with very high reliability and precision. This is the reason why we use the balanced corrugated pipe as the elastic sensitive element in the measuring instruments.

corrugated metal culvert, which used as the elastic sensitive element in the instruments, should adopt the small value of the stiffness when it is designed.

It can control and measure the temperature through the corrugated tube in the process of displacement of the inner cavity volume change (or external).

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