Manish Thakker

L. D. College of Engineering · Instrumentation and Control Engineering

In the original version of the chapter, the following belated corrections have been incorporated: The author (Shriji V. Gandhi) affiliation “Government Polytechnic Ahmedabad, Ahmedabad, India” has been changed to “Gujarat Technological University, Ahmedabad, Gujarat, India” in the Frontmatter, Backmatter and in Chapter number. The correction chapte...

This work explores energy harvesting from rotary motion using a Wiegand sensor, which is a magnetic sensor that induces a voltage pulse when the magnetization is reversed. The main feature of the Wiegand sensor is that a pulse is generated regardless of how slowly magnetism reversal occurs. Self-sustained sensors play major roles in advancing the I...

Proceedings of National Conference in Recent Trends in Technology and Management (NCRTTM-2016), 8th March, 2016, Dharmsinh Desai University, Nadiad, India.

This paper discusses the improvement in oil well critical data Availability, control network, Safety in Mangala field, at Cairn India ltd, one of the biggest onshore fields in India. Mangala field is producing at plateau of 150,000 Barrel per Day. In Oil & Gas Industries is most critical & Hazardous Process, so safety is most important. All 18 Well...

Human skin color has been considered as the most significant and robust parameter for various real world applications. As skin is invariant to orientation and size in the image it is extensively used for facial detection, gesture analysis, diagnosis of various skin diseases and pornographic filtering. Skin color detection is an exigent task as the...

DAQ (Data Acquisition) system is a system which acquires the data i.e. input/output parameters from the field with the help of sensors associated with the system, it analyses the data and generate control action required for operating and also monitor the acquired data on GUI. The DAQ system is basic need for controlling and monitoring of a Mega sy...

Beam alignment is a prime requirement for an optical experiment. This becomes more critical when we perform laser beam based optical experiments and hence there is need to align optical arrangement to bring the laser beam within specified area. For The detection of laser beam position and calculation of misalignment or deviation in the laser beam,...

Beam alignment is important in optical experiments. Experiments involving high power laser the alignment becomes more critical when the beam has to fall within a specified area. For the detection of laser beam position and calculation of misalignment or deviation in the laser beam from a reference position, we have developed an opto-mechanical set-...

The paper describes an accurate method for speed control medium torque (92.17 mN*m), high speed (9778 RPM) Brushed DC motor without using a physical speed sensor. The back EMF is a representative value for the rotational speed of the motor which has been further used for correlation with speed. Several experiments have been carried out to relate ba...

Superhydrophilic thin films of 21 nm sized non-spherical titania nanoparticles are fabricated from a colloidal suspension by fixed blade flow coating without UV illumination. At a blade angle of a = 36° and a gap of d = 300 µm, hierarchically structured films with increasing surface roughness along with microscopic voids are formed depending on the...

Two classes of chalks, calcium sulphate (gypsum) based normal chalks and calcium carbonate based dustless chalks are used in teaching institutions globally. The cost of dustless chalks is almost ten times higher than normal chalks. In many developing countries, chalk manufacturing is a home - based industry and supports the families. However, the f...

In this paper, we report our results on the scientific parameters (e.g.water penetration,contact angle, particle size of dust generated, breaking strength, abrasion rate/wear rate, weight/density, surface morphology) of black board chalks as well as dustless chalks. We had shown a novel use of surfactants for quality improvement of chalks. In India...

In this paper we had proposed methodology for development of heat treatment process for hardening of metal. Hardness of metal is achieved by applying heat treatment, in majority of small scale industry this process is done by manual way which consumes lots of energy, poor safety and uneven hardness of metal. The proposed system is providing solutio...

This paper presents a novel low-cost instrument that uses a sensor based on conductivity changes of heated tungstic oxide, which is capable of accurately measuring ambient concentrations of ozone. A combination of temperature steps and air flow-rate steps is used to continually reset and re-zero the sensor. A two-stage calibration procedure is pres...

This paper introduces a new method to find the breakdown analysis of the material. When the material is subjected to the force it will generate a sound before it breaks, so by the sound analysis we can find the ultimate stress of the material. Ultimate stress point is the point at which the material is going to break or a stress strain relationship...

This research was undertaken to examine the nature of normal black board chalks and imported dustless chalks. Due to economic price majority of schools in developing country like India uses normal gypsum based chalks which generate 3 to 4 times more dust particles than carbonate based imported chalks. We have designed Wettability Instrument, Breaki...

The prime objective of this paper is to present prompt 8 channel vibration monitoring and analyzing system using prevailing LabVIEW tools. Vibration measurement is very needful in mechanical and electrical industries to check the machine health & to take predictive maintenance steps before failure or major fault occur. A system based on virtual ins...

In this paper we are describing useful concept for sound detection and analysis using graphical programming language - LabVIEW. This system is very cost effective and easy to scale up for establishment of correlation with crispiness of food products, breaking strength of solid objects with acoustic parameter. When the material is subjected to the f...

Solid liquid contact angle measurement Instrument is investigated that will measured contact angle as per the ASTM standard D7334 using liquid drop shape analysis profile. This research work involved extensive use of LabVIEW (Laboratory Virtual Instrument Engineering Workbench) software by National Instrument which provide cost effective and reliab...

Solid liquid contact angle measurement Instrument is investigated that will measured contact angle as per the ASTMstandard D7334 using liquid drop shape analysis profile. This research work involved extensive use of LabVIEW(Laboratory Virtual Instrument Engineering Workbench) software by National Instrument which provide cost effectiveand reliable...

Wireless communication technologies become popular in real-time industrial environments. The availability of products and solutions based on the IEEE 802.11 standards make such kind of communication technology more cost effective in distributed control systems and process parameter measurement systems. This paper describes fundamental work of real...

This research work gives information about flow through porous media. In this we are presenting the wettability behavior of various types of chalks. Majority of academic community in developing countries like India uses normal gypsum based chalks which produces fine dust detrimental to the health of teachers and students. Good quality carbonate cha...

Chemference 2012, At ICT-Mumbai and IIT Bombay

In this paper we are presenting the design and development of computer interfaced wettability apparatus which works on modified Washburn method for measurement of wettability and penetration kinetics of liquid into porous material. The mass gain of the penetration liquid in to tube filled with powder was measured vs time. A LabVIEW based data acqui...

Chemference 2012, IIT Bombay

Measurement of Surface Tension and kinetics of molecular aggregation process in surfactant solution is an area for extensive experimental interdisciplinary research to establish the correlation of surface properties with technological applications such as foaming, emulsification and wetting of surfaces. We present a methodology to determine the sur...