S Sivarao

Bio: S Sivarao is an academic researcher from Universiti Teknikal Malaysia Melaka. The author has contributed to research in topics: Inductive sensor & Proximity sensor. The author has an hindex of 1, co-authored 1 publications receiving 3 citations.

Embedded Inductive Sensor System in Helping Industrial Machine Maintenance Problems

Abstract: The inductive sensor / proximity sensor was preliminarily initiated to be used as a micro level limit switch where its potential in speed measurement was not taken advantage by the industries. Thus, looking into its potential significant contribution, this paper presents the performance of a non-contact inductive sensor which was used to remotely measure the high speed rotational spindle with high degree of accuracy. The sensor was used to generate pulse correlating the rotational speed of a machine. An experiment was conducted using a self-designed test rig to investigate its performance in counting the machine spindle speed which can help to ease the machine maintenance task for technical supports. The measuring was monitored by a specially designed LCD display, connected to an electronic circuit and a microcontroller. The test result shows that the inductive proximity sensor yields up to 95% in terms of rotational speed accuracy. The setup was made to suit a single monitoring system, while the modular based for multiple systems that integrate different operations are in progress.

Tests of Belt Linear Speed for Identification of Frictional Contact Phenomena.

Abstract: In the locations where driving forces are transmitted, the changing tensile forces cause rapid elastic deformations of the belt. The deformation changes the belt speed. Measurement of the belt speed on the friction contact sections is essential to identify elastic slippage. However, the scale of the phenomenon is small, so it is necessary to use precise measuring equipment. The article presents measurements of the linear belt speed with the use of various sensors and measuring devices. A measurement error was determined for each of the presented measurement methods. The method with the highest accuracy was used to identify the elastic slippage on the drive pulley.

Realization of the system for measurement of high angular velocity

Abstract: This paper presents a system solution for precise and reliable measurement of the turbomotor angular velocity in a wide dynamic range, from 10.000 to 95.000 rpm. Special attention is dedicated for selection of sensor element and hardware implementation for conditioning the signal obtained at the output of a sensor operating in the environment in which are present exhaust gases, high mechanical vibrations and big temperature changes. The accuracy of implemented system is better than ±0,45% on the whole measuring range.