首页>
外国专利>
Electronic apparatus for measuring the difference of elevation between two points
Electronic apparatus for measuring the difference of elevation between two points
展开▼
机译:电子设备,用于测量两点之间的高程差
展开▼
页面导航
摘要
著录项
相似文献
摘要
In an electronic apparatus for measuring a difference of elevation between two points, said apparatus comprising: a tube made of a flexible material; a fluid with a low viscosity completely filling said tube; two piezoelectronical pressure transducers each connected to a source of electrical power and mounted at one extremity of the tube in contact with the fluid filling said tube to produce signal a proportional to the pressure of this fluid; electronic means connected to each of said piezoelectrical pressure transducers for processing the signals received from said transducers, said processing means comprising means for generating a signal proportional to the difference between the signals received from the transducers and means for converting said generated signal into a value indicating the difference of elevation between the extremities of the tube, and means for displaying said value indicating the difference of elevation, the improvement wherein it further comprises means for generating a signal proportional to the mean temperature of the fluid filling said tube; and means for correcting said generated signal proportional to the difference between the signals received from the transducers, with said generated signal proportional to the mean temperature in order to compensate any variation of said generated signal due to a variation in the fluid temperature along the tube.
展开▼