Bourdon tube is one of the most common pressure measuring devices that measure pressure by measuring a mechanical deformation .
Measures. Take Bourdon c, for example , which often has an oval cross section . The following is an example In tube c, one end of the tube is closed and the other end is connected to the fluid whose pressure is to be measured. The closed end is connected to a hand by a number of gears, levers and other micromechanical components.
When pressure is applied to the pipe, the angle of curvature of the metal pipe changes due to the difference between the force applied to the inner and outer wall of the pipe. Because the open end of the tube is fixed at one point, the change at the end of the tube is transmitted to its closed end, causing the hand to rotate.
In addition to direct display by hands, the output of Bourdon tubes can be transmitted to the electrical signal by an electric transducer.
Converted and used in the control system.
What is a Bourdon tube?
Bourdons are used for a relatively good range of fluid pressures, typically between 0.6ps in vacuum and 20000psi. Take.
Bourdon barometers often exhibit nonlinear behavior at high pressures and therefore less at high pressures.
They exhibit nonlinear behavior and are therefore less commonly used at high pressures. The absolute confusion or differentiality of the pressure measured by the Bourdon barometer can be seen by looking at the screen of the device.
In other words, if barg, bar A or delta is written on the screen of the device , the absolute pressure of the gauge pressure or
The pressure is differential per unit load. In cases where no indication was placed on the device to detect these three types of pressure, the case gauge for measuring pressure Used.
Bordons are made in three different ways , each of which is used in specific cases:
A: C-shaped curbs that have an accuracy of about 1% .
B: Spiral cords that have an accuracy of about 0.5% .
A: Bourdon spiral or helical with an accuracy of about 0.5% to 1% are.
Spiral cords are mostly used for measuring low pressures, and more c-shaped and spiral cords are used for
High pressure measurements are used.
Bourdon barometers have a lot of moving parts and therefore they are relatively depreciated and that is why
The reason is that they need to be repaired and calibrated from time to time.
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