Method and device for improving the stability of height difference measurement based on corrugated tube

A method for improving the stability of a height difference measurement based on a corrugated tube, wherein the method comprises:

• utilizing the preset corrugated tube to improve the structural stability of a height difference measuring device between a first pressure sensor and a second pressure sensor, obtaining the structural stability improvement result;
• collecting a first pressure from the first pressure sensor, detecting whether the first pressure is affected by external interference;
• when the first pressure is not affected by external interference, performing pressure screening on the first pressure to obtain a screening pressure, and calculating a first pressure average value of the screening pressure;
• collecting a second pressure from the second pressure sensor, calculating a second pressure average value of the second pressure;
• based on a historical pressure average value of the second pressure sensor, detecting the pressure accuracy of the second pressure average value;
• when the pressure accuracy is accurate, updating the second pressure by utilizing the second pressure average value to obtain an updated pressure;
• based on the first pressure average value and the updated pressure, calculating the dynamic height difference of the height difference measuring device, utilizing the dynamic height difference to determine a dynamic stability improvement result of the height difference measuring device;
• combining the structural stability improvement result with the dynamic stability improvement result to determine the final stability improvement result of the height difference measurement device;
• based on the first pressure average value and the updated pressure, calculating the dynamic height difference of the height difference measuring device, comprising:
• collecting a gravitational acceleration of the height difference measurement device;
• based on the first pressure average value, the updated pressure, and the gravitational acceleration, calculating the dynamic height difference of the height difference measurement device by utilizing the following formula:
• h
• =
• p
• 2
• -
• p
• 1
• ρ
• ⁢
• g
• wherein, h refers to the dynamic height difference, p2 refers to the first pressure average value, p1 refers to the updated pressure, ρ refers to the pressure density, with a value of 0.93 gram per cubic centimeter, g refers to the gravitational acceleration, with a value of 9.8 meter per quadratic second.