A SIMPLE METHOD TO MEASURE PISTON ROD POSITION BY USING CIMS SENSOR WITH HIGH ACCURACY

Abstract

Cylinder stroke measurement is an important factor in cylinder position control, especially synchronous cylinder’s velocity control, where measurement deviations can cause warping, cylinder failure or even system damage. There are many methods to measure the piston rod position such as using an independent encoder, variable resistor, etc. mechanically linking to the piston to measure the position rod position when the piston moves. However, these methods have not high accuracy, are difficult to install, and have limited applicability. The following article will introduce a simple method for easily integrating CIMS sensors for Cylinder Integrated Measurement System (CIMS) for the construction of big and flexible control systems. High accuracy and reliability using low cost equipment, simple installation, the same application used by the author to measure and control the prevention tide flooding system on the Saigon River.