一种测量水下设施水平度用的传感器

A New Pressure Transmitter for Levelling of Underwater Building

本文介绍一种新颖的压力变送器，它利用阀门切换的方式建立水平度测量的参考基准，凡是低于这个基准的，压力变送器输出正信号；凡是高于这个基准的，变送器输出负信号；信号大小与水平度偏差成正比，与深度无关。测量误差的绝对值不大于±１ｍｍ。并提出了解决海流干扰的措施。

This article states a kind of new pressure transmitter for levelling of underwater building. In this novelty reference basis of static pressure is designed by means of an alternating valve. The pressure transmitter will output positive signal when the measured pressure under the basis ,and negative when upon the basis. The dimension of the signal is in direct proportion to the difference of level but didn't depend on the depth of water. The absolute error of level measurement can be less than ±1mm.The procedure of avoidance of the water current perturbation is also discussed.