sankalp paliwal
@vrsiddhartha.ac.in
Assistant professor EIE Department
V R Siddhartha Engineering College
EDUCATION
PhD from BITS Pilani, Pilani campus
RESEARCH, TEACHING, or OTHER INTERESTS
Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Artificial Intelligence, Control and Systems Engineering
Scopus Publications
Scholar Citations
Scholar h-index
Scopus Publications
Deeksha Shridhar Vishnampet, Sujan Yenuganti, Sankalp Paliwal, Mythili Peparthi, and Kavitha Panneerselvam
Springer Science and Business Media LLC
S. Yenuganti, S. Paliwal, and M. Peparthi
Springer Science and Business Media LLC
Chinmay Yadav, Sankalp Paliwal, Sujan Yenuganti, and Srinivasulu Raju S
IEEE
Pressure is one of the critical physical attributes that need to be continuously monitored, accurately measured, and recorded in most of manufacturing industries. This paper proposed a novel depiction of a differential resonant-based pressure sensor with a circular diaphragm and boss structure for gauging pressure in the range of 0–10 bar. The applied pressure is converted into a differential frequency signal at the two beams having one edge rigidly fixed and the other one, connected to a central structure which is coupled to the boss structure of the diaphragm. Both the analytical and numerical modeling were performed on the sensor design. Optimum sensor dimensions were scaled during numerical simulation in such a way that the diaphragm bestows maximum deflection when pressure is applied to it. The differential arrangement of the beams also helps in maintaining their stability for any ambient temperature divergence. Analytical model results performed using MATLAB were also found to be in accordance with the numerical simulation done on COMSOL Multiphysics. Stainless steel was used as the material for the simulations and was also intended to be the material for the fabrication of the sensor. Using stainless steel as the fabricating material and the sensor’s self-packaging design gives it the ability to perform well even at high temperatures and also provides protection from general corrosive environments
Sankalp Paliwal and Sujan Yenuganti
IEEE
In this paper, a wired and wireless transmitter for two different designs of hall effect-based pressure sensors are designed and experimentally tested. A wired transmitter is designed by converting the actual sensor output to a 1-5V range using a signal conditioning circuit, followed by a voltage-to-current (V-I) converter to convert the signal conditioning circuit output to a 4-20 mA current signal which can be transmitted to any remote indicator without any data loss. A wireless transmitter is also designed with the same signal conditioning circuit and a Wi-Fi module to transmit the pressure sensor data wirelessly to the IoT cloud server. The Blynk IoT console is used as a server to access the transmitted data through a PC/laptop connected to the Internet. The linearity as % deviation and % error of the V-I converter is calculated for wired transmission and the mismatch between transmitted and received data is also found for the wireless transmission for both sensor designs. The proposed transmitters are of low cost, and simple in design, and the pressure sensor data can be transmitted in real-time using both wired and wireless modes.
Sankalp Paliwal, Sujan Yenuganti, and Manjunath Manuvinakurake
Emerald
Purpose This paper aims to present the fabrication and testing of a pressure sensor integrated with Hall effect sensors and permanent magnets arranged in two configurations to measure pressure in the range of 0–1 bar. The sensor is fabricated using stainless steel (SS) and can be used in high-temperature and highly corrosive environments. The fabricated sensor is of low cost, self-packaged and the differential arrangement helps in compensating for any ambient temperature variations. Design/methodology/approach The sensor deflects of a circular diaphragm with a simple rigid mechanical structure to convert the applied pressure to a Hall voltage output. Two sensor designs are proposed with a single pair of Hall sensors and magnets and a differential configuration with two Hall sensors and magnets. Two sensor designs are designed, fabricated and tested for their input–output characteristics and the results are compared. Findings The fabricated sensors are calibrated for 25 cycles of ascending and descending pressure in steps of 0.1 bar. Various static characteristics like nonlinearity, hysteresis and % error are estimated for both the sensor designs and compared with the existing Hall effect based pressure sensors. The differential arrangement design was found to have better characteristics as compared to the other design from the experimental data. Originality/value This paper focuses on fabricating and testing a novel differential Hall effect based pressure sensor. The differential arrangement of the sensor aids in the compensation of ambient temperature variations and the use of SS enables the sensor in high-temperature and highly corrosive applications. The proposed sensor is low cost, simple and self-packaged, and found to have high repeatability and good linearity compared to other similar Hall effect based pressure sensors available in the literature.
Sankalp Paliwal and Sujan Yenuganti
IEEE
In this study experimental analysis and control of a PZT based cantilever is performed using Fuzzy-PID controllers. Two PZT patches were attached to the rigid end of the Cantilever beam out of which one was used as an actuator and another PZT was used as a sensor. The sensor input was provided to a computer using an NI DAQ card. The sensor signal was received by the computer through LABVIEW software where the control algorithms using PID and Fuzzy-PID controller were designed. At the rigid end of the cantilever beam, a magnet was attached and an electromagnet was used as a controller for controlling the vibrations. The vibration suppression was done at the first order mode frequency of the cantilever beam and both PID and fuzzy-PID controllers show good suppression of the vibrations. However, the results show that fuzzy-PID controllers have better characteristics than PID control.
Sankalp Paliwal and Sujan Yenuganti
Springer Science and Business Media LLC
Sankalp Paliwal and Sujan Yenuganti
Springer Science and Business Media LLC
Sankalp Paliwal
IEEE
Mobile inverted pendulum (MIP) is a popular nonlinear robotic system used by researchers to perform control experiments. The MIP has two wheels to move and balance the pendulum. In this paper fractional order PID controllers have been used for the stabilization of MIP system. Fractional order PID controllers have been used to provide a robust design of the controllers for the stabilization of MIP system. A two loop control scheme has been used for stabilization of MIP system one controller is used for controlling the position of the MIP system and the other controller is used for controlling the pendulum angle of the system. The tuning of the fractional order PID controllers has been done using trial and error method. Simulation results obtained by both simple PID controllers and fractional order PID controllers are compared and it is shown that we get better response with fractional order PID controllers.
Sankalp Paliwal, Vikram Chopra, and Sunil Kumar Singla
IEEE
A mobile inverted pendulum (MIP) is an under actuated system with two degrees of freedom. The control objective is to stabilize the MIP in vertical upward position by applying appropriate control signal. In this paper fuzzy logic based PID controllers have been designed for stabilizing the mobile inverted pendulum. A two loop fuzzy based PID control scheme has been proposed for stabilizing the MIP. One loop controls the angle while the other loop controls the position of the base. The proposed scheme has been compared with the conventional PID scheme with fixed gains. Simulation results affirm the effectiveness of the proposed controllers as compared with the conventional PID controllers in terms of various performance parameters such as maximum overshoot, maximum undershoot and rise time etc.