Author(s): Ph. Beguin; L. Schneiter

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Keywords: No Keywords

Abstract: An automatic water level measurement system designed for free surface flow control in laboratory is presented hereafter. 16 three-point electromechanical sensors are steered by a microprocessor, The sensor always approaches the flow from above so as to eliminate capillarity effects. The movement is pro-duced by a step by step motor. The microprocessor controls and records the displacements with an accuracy of 0.2 mm, computes their size in model or prototype values, checks the adjustable and security ends of trip. Measurements can be continuous or one point values. The first case implies however intrinsic limita-tions with respect to level change gradients and/or frequencies, Reference levels can be set arbitrarily. All current values of water levels are displayed on a control screen and recorded on a disk. A RS-232 connection to the network allows for date transfers to a host computer. (in development).

DOI:

Year: 1985